application

Transcription

application

APPLICATION
LENETA PAINT TEST CHARTS
AND INSTRUMENTS
LENETA LEVELING TEST BLADE
Used in ASTM D4062 Test method for "Leveling of Paints by Drawdown Method"
NO. LTB-2
This is a threaded steel rod that functions as a
grooved doctor blade at any part of its circumference.
It produces a film with parallel ridges and valleys
in simulation of brush marks. Critical dimensions
are indicated in Fig. 2. Plastic arms, in conjunction
with straightedge guides, assure rectilinear movement of the blade. Test advantages compared with
brushout application are speed, reproducibility, and
a regular surface pattern that facilitates evaluation.
It has been demonstrated that the leveling of films
Fig. 1 Leneta Leveling Test Blade
prepared in this manner correlates very well with
brushout leveling.
The diagram shows alternate clearances, in equal
width, of 300 and 100 µm (12 and 4 mils). Since
the wet film thickness laid down by a doctor blade
is about half its clearance, it can be expected that
the Leneta Leveling Test Blade will apply alternate
stripes about 150 and 50 µm (6 and 2 mils) thick.
Fig. 2. Details from the engineering drawing Thus the amplitude of the square wave formed at the
instant of application will be approximately 50 µm (2 mils) and the approximate average wet
film thickness will be 100µm (4 mils). The latter value multiplied by the nonvolatile fraction
by volume, gives the equivalent dry film thickness. See instructions in this section.
LENETA DRAWDOWN LEVELNESS STANDARDS
No. LS-2 • ASTM D 4062
Evaluation of drawdowns prepared with
the Leneta Leveling Test Blade is readily
accomplished by visual comparison with
Leneta Drawdown Levelness Standards.
The method is fast and simple, and gives
numerical values that have intrinsic and
practical significance.
The Standards are 3-dimensional true scale
Fig. 3. Drawdown Levelness Standards under replicas of drawdowns made with the Leneta
oblique light.
Leveling Test Blade, using a series of nine
paints ranging from extremely poor to good leveling. The primary replications are on durable
metal plates from which duplicates are pressed in the form of 3 x 5 in.(76 x 125 mm) white
vinyl panels. They are numbered 1 through 9 from poorest to best leveling. Perfect leveling
is 10 and poorer than 1 is Zero. The number of the matching standard is the Leveling Value
of the paint. Further information with the regard to the significance of these values is provided
in section 9 of the appendix following this section.
For prices refer to the price list at the end of this section
Paul N. Gardner Co., Inc. • www.gardco.com • (954) 946-9454 • 1-800-762-2478
1
APPLICATION
LENETA LEVELING TEST DRAWDOWN PLATE
No. DP-2
Fig. 1 Application w/ the Leneta Leveling Test Blade.
Illustrates use of drawdown Plate and Catch-Papers,
designed for this operation.
Proper use of the Leneta Leveling Test Blade requires that it
be drawn down rapidly using a considerable amount of paint.
Under these conditions it is difficult to maintain rectilinear
blade movement so that the ridge lines will be straight, or
to confine the surplus paint in order to minimize the task
of cleaning up. This special drawdown plate is designed
to accomplish these objectives by means of straight-edge
guides and other positioning elements and is recommended
for that purpose in ASTM Method D4062. See instructions
in this section.
“CATCH-PAPERS” No. CP-2
These thin lacquered sheets are for catching surplus paint at the end of the drawdown. This form was
designed specifically for use with the Leneta Leveling Test Drawdown Plate, being cut to size and hole
punched accurately for that purpose.
INSTRUCTIONS FOR USE
THE LENETA LEVELING TEST METHOD
A. Equipment
(1) The Leneta Leveling Test Blade.
(2) Drawdown Levelness Standards.
(3) Leveling Test Drawdown Plate.
(4) Drawdown Charts.
Form WB for light colored paints.
Form 7B for dark colored paints.
(5) Catch papers, Form CP-2.
(6) Pre-shear equipment.
(7) Low angle light source.
B. Preparation of Coating
(1) Stir thoroughly & adjust to 23°C.
(2) Strain & adjust viscosity
(3) Pre-shear in accordance with one of the
methods described and test immediately
thereafter.
C. Application of Coating
(1) Position a Catch-Paper onto the Drawdown Plate.
(2) Place chart on Drawdown Plate against left
guide.
(3) Place Leveling Test Blade at top of chart with
long arm against left guide and toward
operator.
(4) Place 8-10 ml of pre-sheared coating in front of the blade and draw down rapidly at a uniform of 60cm (2 ft.) per sec.
(5) Allow to dry horizontally at 23°C.
D. Rating the Drawdown
(1) After drying, cut out a 3 x 5 inch (76 x 127 mm) section with striations parallel to the long edge.
(2) Compare with Levelness Standards under
suitable lighting (Level-Luminator oblique for white & light colors, ambient specular reflec
tion for dark colors).
(3) The number on the matching standard is the
Leneta Drawdown Leveling Value.Rate perfect
2
leveling as “10”, and anything poorer than 1
as “0”. Include subscript “d” (e.g. 6d)
to indicate derivation from Drawdown
Levelness Standards.
E. Practical significance of numerical values
This is based on subjective evaluations. The following
table represent the collective judgement of an experienced
laboratory group.
Draw-Brushout
down
Leveling Value
1
Very poor
2
Very poor
3
Poor
4
Poor
5Poor-fair
Drawdown
Value
6
7
8
9
Brushout
Leveling
Poor-fair
Fair
Fair-good
Good
F. Topography of Leneta Drawdown Levelness
Standards
The following wave amplitudes were
measured with a Talysurf 4 profilometer. The data is of
interest because it links an objective physical parameter to
subjective visual impression.
Standard
Amplitude
Amplitude
–Mils–µm
11,00025.4
2 0.68017.3
3 0.43811.1
40.3107.9
50.2195.6
60.1564.0
70.1092.8
80.0621.6
90.0441.1
APPLICATION
INSTRUCTIONS FOR USE
THE NYPC LEVELING TEST BLADE-TEST METHOD
A. Equipment
(4) Position the Catch-Paper.
(1) The NYPC Leveling Test Blade.
(5) Place a suitable quantity (8-10 cc) of (2) The Leneta Adjustable Straight Edge.
pre-sheared paint directly in front of the (3) The Leneta Drawdown Plate–Regular.
blade and draw down with a uniform (4) Drawdown Charts:
speed of about 1 ft (30 cm) per second.
Form 7B, black and white for light colors.
(6) Allow to dry at 23°C in a horizontal Form WB, plain white for dark colors.
position with normal ventilation.
(5) Catch-Papers, Form CP-1.
(6) Pre-Shear equipment.
(1) After the drawdown is made the five B. Preparation of Coating
pairs of stripes are considered as being (1) Stir thoroughly and adjust to 23°C.
numbered 0,2,4,6,8 respectively, from (2) Pre-shear in accordance with one of the
left to right.
methods described and test immediately (2) Ignore the leading and trailing edges thereafter.
and rate only the central 5 1/2"
C. Application of Coating.
(140 mm) as indicated by the black
(1) Fasten the Straight-Edge onto the area of Form 7B.
drawdown plate in suitable position.
(3) Note the lower numbered pair that has (2) Place a test chart on the drawdown failed to merged completely. The Leveling
plate in suitable position.
Value is that number, plus 1 if merger is
(3) Place blade at top of chart, open side
about half. If all stripes have merge
toward operator and shoulder against
completely the Leveling Value is 10.
Straight-Edge.
THE NYPC LEVELING TEST BLADE
NO. LTB-1
Fig. 1 Photograph of the NYPC Leveling Test
Blade
Fig. 2
This is a drawdown blade with five pairs of successively
shallower notches, whereby leveling is rated according
to the separation or merger of the corresponding pairs
of stripes. It was developed by the New York Society
for Coatings Technology (NYPC = New York Paint
Club) and has the distinction of being the first practical laboratory device to provide numerical values for
leveling. Its use is mandatory in many U.S. government
specifications. In recent years, it has been subjected to
criticism in connection with emulsion paints, which has
caused a shift in preference toward the newer leveling
test blade. Nevertheless it has and will undoubtedly
continue to perform valuable service.
Engineering Diagram of the NYPC Leveling Test Blade
LEVELING TEST CHART
Form 7B:
7-5/8 x 11-3/8in.
(194 x 289mm)
This form was designed for use with the LENETA Anti-Sag
Meter and the NYPC Leveling Test Blade. Its special
characteristic is the provision of an applicator path with
a considerable length of black in the middle. Thus by
making the test observation only over the black area
there is automatic compliance with the test procedure
instructions to ignore the leading and trailing edges
of the drawdown.
3
APPLICATION
LENETA DRAWDOWN PLATES
GENERAL DESCRIPTION: A glass clipboard is set firmly on a phenolic plastic panel and
the whole apparatus is mounted on rubber bumpers to prevent sliding while in use. The
drawdown surface is 6mm (1/4 inch) thick polished glass, equal in planarity to fine mirror
glass. A steel clip holds the test chart or panel steady while the drawdown is made. These
devices provide economical and convenient means for making drawdowns of uniform film
thickness. In some cases they are superior to vacuum plates. They are easy to use, easy to
keep clean, and will be found extremely helpful in every paint and coatings laboratory.
DP-3 LENETA Scrub Test Drawdown Plate
DP-1 LENETA Drawdown Plate
Glass surface: 9 x 15" (230 x 380mm)
FOR GENERAL USE WITH LENETA
CHARTS AND PANELS
Fig. 1
Typical drawdown
with a Bird type applicator.
Glass surface: 7 x 20" (175 x 500mm)
FOR DRAWDOWNS ON LENETA SCRUB TEST
PANELS
Fig. 2
Test application with a Dow Latex
Film Applicator shown with DP-SE-3
Straight Edge
Leneta Straight Edges are designed for mounting on Leneta Drawdown Plates as
guides to assure rectilinear movement of the applicator, as illustrated in Figure 2.
Lateral positioning is adjustable to accommodate various applicator widths.
DP-DP-1
DP-DP-3
DP-SE-1
DP-SE-3
Leneta Drawdown Plate - Regular..................................... $227.00
Leneta Scrub Test Drawdown Plate..................................... 279.00
Leneta Straight Edge, for use with standard
drawdown plate DP-1............................................................. 92.00
Leneta Straight Edge, for use with scrub test
drawdown plate DP-3............................................................. 96.00
CP-1 CATCH - PAPERS
Form CP-1
Size: 3 x 8-1/2" (75 x 215mm)
These are thin lacquered papers that are placed under the bottom edge of a chart or panel
to catch the surplus paint at completion of a drawdown, as shown in the preceding figures.
Their sealed surface facilitates clean-up by preventing fast dry-out of paint on the applicator.
Avoidance of this condition is of special importance when applying emulsion paints with
multi-grooved applicators for sag or leveling tests. Such instruments present a particularly
difficult cleaning problem, and must be kept scrupulously clean for accurate results.
PC-CP-1
PC-CP-2
4
Leneta Catch Papers, 1000................................................... $54.00
Leneta Catch Papers, 1000
(Special for use with DP-2 Drawdown Plate)....................... $59.25
APPLICATION
PRE-SHEAR METHODS AND EQUIPMENT
Practical methods for applying coatings develop high shear rates and stresses that strongly
influence the degree of sagging and leveling. Since drawdown blades for measuring these
characteristics develop relatively low rates of shear, they require that coatings be “Pre-Sheared”
to simulate practical application. This can be accomplished by rapid mechanical mixing,
or by forcing the liquid through a suitable hypodermic syringe and needle. In general, the
former is advisable with solvent type and the latter with aqueous coatings. Following is
a description of specific equipment and procedures that have been found satisfactory in
this connection.
I – PRE-SHEAR by RAPID MIXING – SOLVENT COATINGS
A. Equipment:
B. Procedure:
(1) Rotary power mixer, capable of 1300 and/or 3600 rpm
(2) Mixing can–Pint (500 mL) conventional paint can
(3) Mixing can–175 mL, Item No. PS-2
(1) Stir coating thoroughly with a spatula. Strain if necessary.
(2) Fill the mixing can approximately half.
(3) Attach the mixing paddle to the rotary power mixer.
(4) Set speed at 1300 rpm for the 175 mL can or 3600 rpm for the 500 mL (pint) can.
(5) Position paddle about 1/4 inches (6mm) from bottom of can.
(6) Mix 1 minute then promptly place about 8 mL of paint in front of the drawdown blade.
II – PRE-SHEAR with SYRINGE AND NEEDLE – AQUEOUS COATINGS
A. Equipment:
B. Procedure:
(1) 10 mL Luer-Lok syringe, Item No. PS-3
(2) 15 gage Luer-Lok syringe needle, Item No. PS-5
(3) Syringe extension tubing, Item No. PS-6
(1) Stir coating thoroughly with a spatula. Strain if necessary.
(2) Cut a 2 inch (50 mm) length of extension tubing and attach to syringe.
(3) Press the syringe barrel firmly to expel air. Dip the end of
the extension tube into the coating, pump slightly to expel
remaining air, then withdraw 8 mL of coating.
(4) Remove the extension tubing and attach a syringe needle.
(5) Eject the contents of the syringe in front of the applicator speedily, employing steady and very strong pressure.
5
APPLICATION
THE LENETA ANTI-SAG METER
STANDARD
Item No. ASM-1
LOW RANGE
Item No. ASM-2
Fig. 1 – Medium Range Anti-Sag Meter.
HIGH RANGE
Item No. ASM-3
MEDIUM RANGE
Item No. ASM-4
Fig. 2 – Typical application procedure.
ANTI-SAG METERS AVAILABLE FROM STOCK
Item No.
ASM-1
Range
Standard
ASM-2
Low
ASM-3
High
ASM-4
Medium
Used for:
Solvent-borne
Arch. coatings.
Industrial O.E.M.
coatings
High build
coatings.
Water-borne
Arch. coatings.
Notch Clearances*
µm
75 100 125 150 175
MILS
3
4
5
6
7
µm
25
38
50
63
75
MILS
1
1.5
2
2.5
3
µm
350 400 450
500 625
MILS
14
16
18
20
25
µm
100 150 200
250 300
MILS
4
6
8
10
12
*Wet film thickness is about half of clearance.
200
8
88
3.5
750
30
350
14
225
9
100
4
875
35
400
16
250
10
113
4.5
1000
40
450
18
275
11
125
5
1125
45
500
20
300
12
138 150
5.5 6
1250 1500
50 60
550 600
22 24
The Economy Scale Sagometer correlation is as follows:
Scale A = Sttandard, Scale B = Low, Scale C = High, Scale D = Medium
REFERENCES
1.
2.
3.
4.
Official Digest (JCT), October 1962.
Official Digest (JCT), January 1964.
Fed. Test Method Std. No. 141a, Method 4494
ASTM Standard D3730-78.
5. TT-E-508 Interior alkyd semi-gloss.
TT-E-506 Alkyd gloss enamel.
TT-P-1511 Interior latex gloss & semi-gloss.
TT-I-564
Black stencil ink.
6. ASTM Method D 4400
This is a drawdown blade with a series of notches of successively higher clearance. The notch clearance, is related to the degree of sagging and provides a numerical value referred to as the Anti-Sag Index. Three clearance ranges are available as described above. Special ranges can be made to order.
Development of this instrument was described in the Official Digest1, and its versatility for rheological
investigations demonstrated in a later article 2. The STANDARD Anti-Sag Meter is mandatory for several
U.S. government specifications 3,4.
Fig. 2 shows the Anti-Sag Meter in operation and illustrates various items of auxiliary equipment.
ANTI-SAG METER TEST METHOD
A. Equipment:
(1) The Leneta Anti-Sag Meter. (2) The Leneta Adjustable Straight Edge. (3) The Leneta Drawdown Plate–Regular. (4) Drawdown Charts* Form 7B, black and white; for light colored paints. Form WB, plain white, for dark colored paints. (5) Catch-Papers, Form CP-1.
(6) Pre-shear equipment.
*With the Low Range Anti-Sag Meter use glass or flat metal panels.
For prices refer to the price list at the end of this section
6
APPLICATION
ANTI-SAG METER TEST METHOD (CON'T)
B. Preparation of Coating
(1) Stir thoroughly and adjust to 23°C (73.5°). (2) Pre-shear in accordance with one of the methods furnished and test immediately thereafter.
C. Application of Coating
(1) Attach the straight-edge onto the drawdown plate in suitable position. (2) Place a test
chart on the drawdown plate under the clip. (3) Place Anti-Sag Meter on the chart, with it's
open side toward operator and it's shoulder against the straight edge. (4) Position CatchPaper (5) Place a suitable quantity (8-10mL) of pre-sheared paint directly in front of the
blade and draw down uniformly at about 6" (150mm) per second. (6) Promptly fasten the
drawdown chart to a vertical surface, with stripes horizontal and left edge (thinnest stripe) at
the top, and allow to dry in that position.
(1) Note the notch numbers marked on th Anti-Sag Meter and Identify the corresponding
stripes accordingly. (2) Ignore the leading and trailing edges, and observe only the central
5-1/2" (140 mm) of blade path corresponding to the black area of Form 7B. (3) The lowest (thickest) stripe that does not touch the one below itself is referred to as the index stripe,
and its notch number is the Anti-Sag Index of the paint. (4) For more precise Anti-Sag Index,
add to the Index stripe number the product of the post-index clearance step and a fractional
degree to which it has failed to merge with the next lower stripe. The fraction is estimated in
accordance with the following table:
Degree of MergerFraction Unmerged
Complete0
Somewhat more than half
0.25
Approximately half0.50
Somewhat less than half
0.75
FIG. 3 TYPICAL TEST PATTERN
w/ FORM 7B
7
APPLICATION
OPACITY CHARTS
Form 2A
5-1/2 x 10in (140 x 254 mm)
Form 2C
7-5/8 x 10-1/4 in (194 x 260 mm)
Form 14H
11-1/4 x 17-1/4 in (286 x 438 mm)
Design Area = 1.076 ft2 = 0.1m2
= 1000cm2
Form 15H
11-1/4 x 17-1/4 in (286 x 438 mm)
PENETRATION CHART
Form 5C
7-5/8 x 10-1/4in (194 x 260mm)
PENOPAC CHARTS
Form 3B
7-5/8 x 11-3/8in (194 x 289mm)
Form PC-HB
7-5/8 x 11-1/4in (194 x 286mm)
Form 19BR
7-5/8 x 11-3/8in (194 x 289 mm)
Form 1A
5-1/2 x 10in (140 x 254 mm)
Form 1B
7-5/8 x 11-3/8in (194 x 289 mm)
Form 18A
5 1/2 x 10in (140 x 254 mm)
Form 18B
7-5/8 x 11-3/8in (194 x 289 mm)
SAG & LEVELING TEST
CHART
Form 7B
7-5/8 x 11-3/8in (194 x 289 mm)
FOR PRICES SEE PRICE LIST AT THE END OF THIS SECTION
8
APPLICATION
DISPLAY CHARTS
Form 8A
5 -1/2 x 10in (140 x 254 mm)
Design Area = 275cm2
CHECKERBOARD CHARTS
Form 8B
7-5/8 x 11-3/8in (194 x 289 mm)
Form 10A
5 -1/2 x 10in (140 x 254 mm)
OPACITY DISPLAY CHARTS
Form 9A
5 -1/2 x 10in (140 x 254 mm)
Form 10B
7-5/8 x 11-3/8in (194 x 289 mm)
LOGICATOR CHART
Form 9B
7-5/8 x 11-3/8in (194 x 289 mm)
Form 23B
7-5/8 x 11-3/8in (194 x 289 mm)
SPREADING RATE CHARTS
Form 8H
Black & White
Form 10H
Black & White
Form 12H
Black & White
Form 13H
Black & White
HALF SIZE SPREADING RATE CHARTS
Design Area
0.538 ft2
500cm2 (0.05m2)
Overall Size
8-5/8 x 11-1/4in
(219 x 286 mm)
Form 10HBG
Black & Gray
Form 8K
Black & White
Form 8K-GW
Gray & White
9
APPLICATION
UNLACQURED TEST CHARTS
Form N2C
7-5/8 x 10-1/4in (194 x 260 mm)
Form N2A
5-1/2 x 10in (140 x 254 mm)
DUPLEX APPLICATOR CHARTS
Size: 3 x 7 1/4 inches (76 x 184mm)
Originally made to be used with the "Duplex Applicator", an instrument designed for rapid production of multiple side-by-side drawdowns. Less specific
usage has become common.
Form 6F6
Form N9A
5-1/2 x 10in (140 x 254 mm)
WAX & POLISH
TEST CHART
Form WF
Form 6F4
Form WP-1
5-1/2 x 10in (140 x 254mm)
BRUSHOUT CARDS
Used mostly for informal brushout applications. The paper stock is almost twice the thickness of regular chart
paper to give greater rigidity for more convenient handling.
Form 2DX
Black & White
10
Form 5DX
Black & White
Form 5DX-GW
Grey & White
Form WDX
White Only
APPLICATION
METOPAC PANELS
FORMS T122G, T12,
PAINTED STEEL PANELS FOR MEASURING THE HIDING POWER
OF POWDER COATINGS AND INDUSTRIAL ENAMELS
NOTE: T12G Panel also available with NO HOLE. Call for Pricing.
FORM T12M
FORM T12G
ILLUSTRATED
ILLUSTRATED
SIZE 132 x 279mm
(5-3/16 x 11 in)
Area: 368cm2
PHYSICAL CHARACTERISTICS
Black & White
SIZE 76 x 132mm
(3 x 5-3/16 in)
Area: 100cm
(Allowing for 6mm (1/4")
diameter hole)
2
Thickness (prox.)
0.33mm (0.013in)
Weight per
Thous. (prox.)
T12G: 24kg (53lb)
T12M: 88kg (195lb)
Black Surface:
Solvent Resistant, Non-bleeding,
Reflectance: 1% max
White Surface: Solvent Resistant, Color Retentive,
Reflectance: 80% min
Measured per ASTM Method E 1347
CLEAR POLYESTER PANELS
FOR EVALUATION OF GLOSS – TRANSPARENCY – HIDING POWER
These are super glossy and level test surfaces to replace cumbersome glass panels in
evaluating the gloss and transparency of coatings. They offer absolute surface uniformity
for critical gloss measurements. The transparent substrate also finds use in the evaluation
of hiding power.
FORM NUMBER IDENTIFICATION OF STANDARD TYPES, THICKNESSES & SIZES
STANDARD SIZES*
TYPE P300
Thickness: 4 mils(100µm)
Form No. P300-4C
Form No. P300-4G
7 mils (175µm)
P300-7C
P300-7G
mm
inches
7-5/8 x 10-1/4 194 x 260
76 x 140
3 x 5-1/2
*Special sizes on request.
11
APPLICATION
WOOD PANELS
FOR COLOR MATCHING AND DEMONSTRATION OF STAINS
Form
R1A
R1D
*R7A
*R7D
Dimensions - Inches
Type of Wood
Thickness Size
Birch Plywood
0.156
“
“
“
Wood Veneer2
0.09
“
“
“
Size
Dimensions - mm
Thickness 5-1/2 x 10
3-1/2 x 6
5-1/2 x 10
3-1/2 x 6
4.0
“
0.23
“
140 x 254
89 x 152
140 x 254
89 x 152
* This is real wood laminated to paper. The wood is Japanese Kiri which is light in color, with an open grain that
gives attractive stain effects. The fact that these panels are so thin makes them much more convenient for filing or
mounting than conventional wood panels
UPSON FIBERBOARD PANELS
Form
R6-612
R6-912
Size - Inches
6 x 12
9 x 12
Thickness: 3/16 inches (5 mm)
FORM NUMBERS OF STANDARD SIZES
Size - mm
152 x 305
229 x 305
Form
Size - Inches
R6-1218
12 x 18
*R6-1224
12 x 24
Size - mm
305 x 457
305 x 610
*This size is used in ASTM Method D3928, Evaluation of Gloss and Sheen Uniformity of Wall Paints.
LENETA ASTM SCRUB MEDIA
Non-Abrasive Type SC-1
ASTM D3450 Test for Washability Properties
Abrasive Type SC-2
ASTM Method D2486, D4213 and D3450,
Scrub Resistance and Washability Tests.
LENETA ASTM STAINING MEDIA
Non-Abrasive Type ST-1
ASTM D3450 Test for Washability Properties
Abrasive Type ST-3
ASTM Method D3258,
Test for Stain Resistance amd Porosity.
LENETA SCRUB TEST PANELS
FORM P121-10N BLACK PLASTIC–SMOOTH MATTE SURFACE
THICKNESS: 10 MILS (0.25 mm) – SIZE: 6-1/2 X 17 INCHES (165 X 432 mm)
USED IN ASTM D 2486, D 3450, D 4213, TT-P-29, AND OTHER SCRUB TEST PROCEDURES
FIG. 1 - Typical Failure Using Shim,
Per ASTM METHOD D-2486
FIG. 2 - Typical Failure Without Shim
In above illustrated tests the paints were applied without priming directly onto Scrub
Test Panels. Note that the films have worn down to a feather edge with no sign of
adhesion failure.
ALSO AVAILABLE: WHITE SCRUB TEST PANELS–FORM P122-10N Used with dark colored
paints; same properties as Form P121-10N except for color.
SCRUB TEST CALIBRATION PANELS
TYPE A: FORM P121-A
POOR SCRUB RESISTANCE
LOW QUALITY FLAT
TYPE C: FORM P121-C
GOOD SCRUB RESISTANCE
GOOD QUALITY FLAT
These are reference standards prepared by applying white emulsion paints on black scrub test panels.
The films are indefinitely stable, and for each type the panels are essentially identical. They are used
as controls in the measurement of scrub resistance, to obtain Calibration Ratings that normalize the
wide variations often encountered for undefined reasons, among laboratories using the same scrub
test method.
12
APPLICATION
RELEASE PAPERS
FOR PREPARING FREE FILMS OF ORGANIC COATINGS
FORM RP-1K
Thickness: 5 mils (0.13 mm)
Size: 8-5/8 x 11-1/4"(219 x 286 mm)
This paper is smooth-surfaced and sealed on both sides, one side being glossy and
the other matte. The glossy side has a silicone finish with a balanced release characteristic that avoids excessive crawling with solvent or water dispersed coatings
while permitting easy stripping of dried films. It is recommended for ASTM D 2370,
D 4708, D 1653 and other free-film test methods.
ALU-CARDS
ALUMINUM FOIL – PAPERBOARD PANELS
These are low cost metallic substrates to replace expensive solid metal panels where primary interest is
in surface appearance. The test surface has a high metallic lustre. The cards are 18 mils thick and have
a 1/4 inch (6 mm) hole punched at one end. In addition to lower cost, a major advantage over regular
metal panels is that they are much lighter in weight3 and therefore much more conveniently stored.
FORM IDENTIFICATION OF STANDARD SIZES AND TYPES
FOIL ON ONE SIDE
SIZE
Inches
5-1/2 x 10
3 x 5-1/2
Notes:
mm
140 x 254
76 x 140
Primed1
AAX-1P
AGX-1P
FOIL ON TWO SIDES
Unprimed2
AAX-2N
AGX-2N
(1) Has a clear organic primer for improved adhesion.
(2) Foil on both sides for minimal bake distortion. Bright side is unprimed & conductive.
(3) Spray stand and special adapters available for lightweight Alu-card panels.
THE LENETA MAGNETIC SPRAY STAND (ITEM NO. SS-1)
Laboratory spray stands are often unsteady devices, thickly coated with overspray. The Leneta Magnetic
Spray Stand provides stability, tidiness, and general convenience. Its design is simple: two small, but
powerful, pot magnets are mounted at one end of a curved steel rod. The other end of the rod is screwed
into a heavy steel base. Overall height is approximately thirteen inches. Steel panels 6 x 12 inches
and larger are held firmly during spraying and then easily removed. The magnets remain clean, being
protected from over-spray by the panel. Other parts of the device are readily cleaned by soaking in paint
remover or caustic solution.
Leneta Magnetic
Spray Stand, No.SS-1,
showing a 6" x 12"
steel panel in
position for spraying.
Alu-Card in position for
spraying. It hangs from
a small peg on the steel
adapter,steadied by
side arms to prevent it
from blowing off in the
spray stream.
Fig. 1
Fig. 2
ALU-CARD ADAPTERS – For use with the Magnetic Spray Stand
The Magnetic Spray Stand can be used with Alu-Cards or other non-magnetic panels by employing one
of the steel adapters designed for that purpose. Figure 2 shows an adapter in use, and describes how
it works. They are available in two sizes, corresponding to the standard sizes in which Alu-Cards are
available.
Item No.
AD-1
AD-2
Product Name
Alu-Card Adapter, Size A
Alu-Card Adapter, Size G
For Panel Size:
5-1/2 x 10" (140 x 254 mm)
3 x 5-1/2" (76 x 140 mm)
13
APPLICATION
PLAIN WHITE CHARTS
NORMAL THICKNESS: 12 MILS (0.3mm)
Form
*WA
*WB
*WD
WF
Size-inches
5-1/2 x 10
7-5/8 x 11-1/4
3-7/8 x 6
3 x 7-1/4
Size-mm
140 x 254
194 x 286
98 x 152
76 x 184
* These have a 1/4 in (6mm) hole, centered 3/16 in (5mm) from top edge.
Form
WG
WH
WK
WM
Size-inches
3 x 5 1/2
11-1/4 x 17-1/4
8-5/8 x 11-1/4
5-1/2 x 11-1/4
Size-mm
76 x 140
286 x 438
219 x 286
140 x 286
PLAIN BLACK CHARTS
Form
BK
BH
Size-inches
8-5/8 x 11 1/4
11-1/4 x 17 1/4
Size-mm
219 x 286
286 x 438
PLAIN WHITE CARDS
Form
WBX
WDX
WKX
WHX
Size-inches
7-5/8 x11-1/4
3-7/8 x 6
8-5/8 x 11-1/4
11-1/4 x 17-1/4
Size-mm
194 x 286
98 x 152
219 x 286
286 x 438
NON-STICK LENETA™ INTER-LEAF PAPER
Protect your drawdowns by inserting Non-Stick Leneta™ Inter-Leaf Papers between charts when stacking, shipping, or storing. Leneta Inter-Leaf Papers are thin, specially treated, non-stick sheets that
prevent your test applications from being marred by the effects of residual tack.
FORM
PC-IP-1K
PC-IP-1B
PC-IP-1C
PC-IP-1A
14
(Inches)
8 5/8 x 11-1/4
7 5/8 x 11-1/4
7 5/8 x 10-1/4
5 1/2 x 10 SIZE
(Millimeters)
219 x 286
194 x 286
194 x 260
140 x 254
PRICE
(Box of 1000)
$101.00
91.00
84.00
69.50
FORM M72
Form M33-RG Red & Gray (SHOWN)
Also available in Black & Gray (M33-BG)
& Black & White (M33-BW)
Size: 2 x 2 in (51 x 51mm)
BLACK & WHITE
SIZE 2 X 11 IN (51 X 279MM)
SIZE 2 X 11 IN (51 X 279)
FORM M71-BG
Form M12-BW
Black & White
Also available in Black &
Gray (M12-BG) & Red &
Gray (M12-RG)
Size: 1 x 1 in
(25 x 25mm)
Oxide red simulates
industrial primers
These are pressure-sensitive
labels with a hiding power
test pattern and a sealed,
solvent-resistant surface.
They are for use in conjunction with metal panels
and other substrates where
uniform surface appearance
provides no visual clues as to the thickness of an
applied paint film. When placed on such a test
surface the Monitor presents a contrasting feature by
which to observe the hiding during spray application,
thereby facilitating film thickness control. It adheres
firmly whether air-dried or baked, thus presenting a
permanent visual record of film opacity.
BLACK & GRAY
APPLICATION
SELF-ADHERING HIDING POWER LABELS
LENETA SPRAY MONITORS™
15
APPLICATION
LENETA SPRAY STRIPS
16
BLACK & GREY
FORM S72 -BG
BLACK & WHITE
FORM S72
OR FORM S71-RG RED & GREY (SHOWN)
FORM S71-BG BLACK & GREY
FORM S71
BLACK & WHITE
SIZE 2” X 11” (51 X 2790 mm)
APPLICATION
PRINTING INK DRAWDOWN SHEETS
MADE WITH EIGHT REPRESENTATIVE GRADES OF PAPER
DESCRIPTION
Sheet Size: 5 x 7-5/8 in. (127 x 194 mm)
Paper:
Non-Fluorescent, Unwatermarked
Ink:
Jet Black, Non-bleeding
Padding: 100 sheets per pad
Packaging: 1000 sheets (10 pads)
per box
PAPER DESCRIPTION1 AND FORM NUMBER IDENTIFICATION
FORM
3NT-1
3NT-21
3NT-31
TYPE OF
PAPER
Vellum Fluores. Coated
Opaque
Book
SHADE
Neutral
White
Neutral
White
60lb.
15lb.
SIZE BASIS
25x38
GRAMMAGE
3NT-34
Un-water
marked
Non-Fluores.
3NT-4
3NT-5
3NT-8
Unbleached Web-offset
3NT-9
Un-water
marked
Non-Fluores
Jet
Black
Regular
Bond
Neutral
White
80lb.
80lb.
20lb.
40lb.
45lb.
125lb.
5x7-5/8
25x38
25x38
5x7-5/8
24x36
25x38
5x7-5/8
89
56
118
118
123
65
67
203
Caliper(mils)
5.0
2.5
3.7
3.7
5.0
4.0
2.5
10.0
Caliper (µm)
127
64
94
94
127
102
64
254
0.89
1.26
1.26
0.97
0.64
1.05
0.80
BASIS WT.
(SUBSTANCE)
( INCHES)
(g/m3)
Density(g/cm3) 0.70
Optical
Brightner
Kraft
Brown
Coated
Neutral
White
Jet
Black
NOTES: 1. Indicated weights, densities and calipers are nominal and/or approximate.
2. These papers are absorbant despite their high level of transparency
FOR PRICES REFER TO PRICE LIST AT END OF THIS SECTION
17
APPLICATION
LENETA PANELS & CHARTS PRICE LIST
Form
1A
* 1B
* 2A
* 2C
2DX
* 3B
3NT-1
3NT-21
3NT-31
3NT-34
3NT-4
3NT-5
* 3NT-8
3NT-9
5C
5DX
5DX-GW
6F4
6F6
7B
8A
8B
8H-BW
8H-GW
8K-BW
9A
9B
10A
10B
10H-BG
10H-BW
12H-BW
13H-BW
14H-BW
15H
18A
18B
19BR
23B
24B
AAX-1P
AAX-2N
AGX-1P
AGX-2N
BH
BK
CP-1
CP-2
HB
M12-BG
M12-BW
Quantity per
per box box
250
250
250
250
500
250
1000
1000
1000
500
1000
1000
1000
500
250
500
500
500
500
250
250
250
125
125
250
250
250
250
250
125
125
125
125
125
125
250
250
250
250
250
125
125
500
500
125
250
1000
1000
250
2000
2000
$66.25
85.00
66.25
81.50
63.75
85.00
104.00
129.00
86.75
54.65
68.00
99.00
127.00
63.75
82.00
63.75
73.25
69.75
69.75
85.00
66.25
85.00
98.00
113.00
113.00
66.25
85.00
66.25
85.00
113.00
98.00
98.00
98.00
98.00
98.00
66.25
85.00
85.00
85.00
121.00
60.00
77.00
81.00
81.00
104.00
108.00
54.00
59.00
94.25
132.00
108.00
Box
Wt.
6
9
6
9
7
9
7
4
7
1
6
5
5
3
9
7
7
5
5
9
6
9
11
11
11
6
9
6
9
11
11
11
11
11
11
6
9
9
9
9
5
5
6
6
11
11
10
9
11
1
1
Form
M12-RG
M33-BW
M33-RG
M71-BG
M71-BW
M72-BG
M72-BW
N2A
N2C
N9A
NWK
P121-10N
P122-10N
P121-A
P121-C
P300-4C
P300-4G
P300-7C
P300-7G
R1A
R1D
R7A
R7D
R6-612
R6-912
R6-1218
R6-1224
RP-1K
S71-BG
S71-RG
S72-BW
S72-BG
T12G
T12M
WA
WB
WBX
WD
WDX
WF
WG
* WH
WHX
WK
WKX
WM
Quantity
per box
2000
500
500
500
500
500
500
250
250
250
250
100
100
3
3
125
250
125
750
50
100
100
100
150
100
50
40
250
500
500
500
500
125
50
250
250
125
1000
500
500
1000
125
75
250
125
250
per
box
232.00
54.00
116.00
243.00
195.00
243.00
195.00
65.00
79.00
65.00
79.50
259.00
232.00
60.25
60.25
97.00
49.00
99.00
49.00
129.00
115.00
283.00
96.00
184.00
184.00
184.00
197.00
134.00
138.00
191.00
95.00
138.00
135.00
214.00
61.00
80.25
60.25
113.00
58.75
57.00
95.75
87.25
81.75
93.75
68.00
61.25
Box
Wt.
1
1
1
6
6
6
6
6
9
6
11
2
7
7
2
2
3
2
4
2
11
8
5
2
43
43
43
46
8
5
5
5
5
8
12
6
10
7
10
7
5
8
11
10
11
8
*Also available in High Bright
BW = Black & White
RG = Red & Gray
18
BG = Black & Gray
GW = Gray & White
APPLICATION
LENETA EQUIPMENT AND TEST COMPOUNDS
Item
Number
AP-ASM-1
AP-ASM-2
AP-ASM-3
AP-ASM-4
-PC-AD-1
PC-AD-2
DP-DP-1
DP-DP-3
PC-LS-2
AP-LTB-1
AP-LTB-2
PC-PS-2
PC-PS-3
PC-PS-6
WA-SC-1
WA-SC-2
DP-SE-1
DP-SE-3
PC-SS-1
PC-ST-1
PC-ST-31
PC-TK-11
PC-TK-21
Product
Anti-Sag Meter, Standard
Anti-Sag Meter, Low Range
Anti-Sag Meter, High Range
Anti-Sag Meter, Medium Range
Anti-Sag Meter, Special Ranges
Alu-Card Adapter, Size A
Alu-Card Adapter, Size G
Leneta Drawdown Plate, Regular
Scrub Test Drawdown Plate
Drawdown Levelness Standards
NYPC Leveling Test Blade
Leneta Leveling Test Blade
Pre-Shear Mixing Cans
Pre-Shear Plastic Syringes
Pre-Shear Extension Tubing
Scrub Medium, Non-Abrasive Type
Scrub Medium, Abrasive Type
Adjustable Straight Edge
Adjustable Straight Edge for DP-3
Magnetic Spray Stand
Staining Medium
Staining Medium
Testing Ink - High Penetration
Testing Ink - Low Penetration
Package
Description
1 Each
1 Each
1 Each
1 Each
1 Each
1 Each
1 Each
1 Each
1 1 Each
Set
1 Each
1 Each
5 per box
50 per box
100 ft. coil
Pint jar
Pint jar
1 Each
1 Each
1 Each
1/4 pint jar
1/4 pint jar
1/4 pint jar
1/4 pint jar
Wt.
lbs. approx.
Price
$879.00 Ea
879.00 Ea.
879.00 Ea.
879.00 Ea.
P.O.R.
58.00 Ea.
46.00 Ea.
227.00 Ea.
279.00 Ea.
237.00 Ea.
820.00 Ea.
950.00 Ea.
14.00 Box
37.00 Box
50.00 Coil
35.00 Jar
35.00 Jar
92.00 Ea.
96.00 Ea.
259.00 Ea.
32.00 Jar
50.00 Jar
62.00 Jar
62.00 Jar
2
2
2
2
2
1
1
3
5
1
1
2
1
1
2
2
2
2
2
13
1
1
4
4
Package
ASK FOR QUANTITY BREAKS & INQUIRE ABOUT ITEMS NOT LISTED
LENETA PAPER-TESTING INKS
For Evaluating Mottle, Holdout and Porosity of Coated and Uncoated Papers
PC-TK-11: High Penetration for Coated Papers
PC-TK-21: Low Penetration for Uncoated Papers
These testing inks provide a simple and rapid way of monitoring batch-tobatch variations in paper structure and porosity. Inks of both high and low
penetrations are required because the penetration quality of the ink must
be appropriate to the holdout of the paper surface being tested. Coated
papers, being relatively high in holdout, require a high penetration ink to
obtain a sufficiently strong color and mottle pattern. Uncoated papers,
being low in holdout, require a low penetration ink to avoid excessively
strong color that would overwhelm any mottle or holdout distinctions.
19
APPLICATION
Examples of test patterns obtained using the two inks, demonstrating their specialized nature, are as
follows:
TK-11
TK-21
TK-11
TK-21
Test Procedure: Spread the ink on the paper to be
High penetration ink
Low penetration ink
High penetration ink
Low penetration ink
tested using a spatula or drawdown applicator (see
TK-100 Applicator). After one minute remove the
ink by first scraping off most of it with a straight
edge, then wiping away the remainder carefully with
Coated Papers
Uncoated Papers
a clean paper towel. The resultant test pattern is
characterized visually for mottle and porosity. To obtain an instrumental value for porosity, measure the
CIE-Y reflectances, or the densitometer values, of the stained and unstained areas, then calculate:
∆D
Porosity Index (Holdout)
= Y unstained - Y stained = 10 -1
100
Y unstained
10∆D
Where D = densitometer value and ∆D = Dstained - Dunstained
TK-1
TK-2
118 mL
118 mL
PACKAGING
(227 grams –1/2 lb) per jar
(151 grams –1/3 lb) per jar
8 jars per case
PC-TK-100: Applicator for Paper-Testing Inks
Constructed of aluminum, this low cost applicator is designed specially for use with Leneta Testing Inks.
One edge has a 10 mil (250 µm) clearance and applies a 3 inch (75 mm) wide film. The opposite
edge can be used as a convenient scraper.
Dimensions: 5” x 2” x 1/8” (127mm x 51mm x 3mm)
LENETA ASTM SCRUB & STAINING MEDIA
Leneta-ASTM Scrub Media
WA-SC-1: Non-Abrasive Type used in ASTM Method D 3450, Test for Washability Properties
WA-SC-2: Abrasive Type used in ASTM Method D 2486, D 4213 and D 3450 Scrub Resistance and
Washability Tests
These are aqueous dispersions of detergent, cellulosic thickener and
preservative, made in conformance with and approved for use in the indicated ASTM methods. The abrasive type contains ground silica for accelerated erosion. The two compounds are representative of the detergent
and abrasive character of commercial cleaning products. Because of the
variable nature of their ingredients, The Leneta Company provides media
adjusted and tested to assure batch-to-batch uniformity. Each container
is fully identified by batch number and shipping date. The contents of
unopened containers are guaranteed standard in performance for a year,
which is highly conservative on the basis of observed package stability.
PC-ST-1: Pigmented Type used in ASTM Method D 3450, Test for Washability Properties
This is a finely ground dispersion of high jet carbon black in a blend of mineral oil
and odorless mineral spirits. It is specified in ASTM D 3450 to meet the laboratory
requirement for a reproducible composition of matter, representative in a general
way of soilants encountered in the field.
PC-ST-31: Penetrating Dye Type Recommended for ASTM Method D 3258, Test for Stain Resistance
and Porosity
This is a proprietary composition of pigment and dark-colored dye dispersed
in an organic liquid vehicle. When applied and then removed from a paint
film, the intensity of the resultant stain indicates the degree of film porosity.
Both media have perfect package stability and are manufactured and control tested to assure batchto-batch uniformity. Their usefulness extends not only to ASTM tests, but to any soil and stain removal
test procedure.
20

application

Transcription

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