MVP4 - Crescent Hardwood Collection

Technical Datasheet
Hardwood Flooring Systems Solutions
Product Information
®
4
MVP
Moisture Vapor Protection, Anti-fracture and Noise Reduction Membrane
Easy Spread
Bostik’s
Blockade™
Antimicrobial
Protection
Prevents
damages caused
by moderate
subfloor moisture
Below*, On and
Above Grade
Installations
Exceeds IRC
requirements for
vapor retarder
Low VOC
Noise reduction
over substrate
MVP4® Moisture Vapor Protection is a one-part, trowel
applied, elastomeric, moisture cure urethane membrane
designed to be used beneath glue-down installations of
engineered and solid and bamboo hardwood flooring with
Bostik’s Best®, BST, EFA+, or TKO adhesives. MVP4® is
designed to reduce moisture vapor transmission from the
subfloor, create a noise reduction barrier over the substrate,
and establish an anti-fracture membrane that can bridge
cracks that can occur in the substrate prior to or after
installation (up to 1/8").
MVP4® may be used over all substrates common to hardwood
flooring installations including: concrete, plywood, particle or
chip board (underlayment grade), well bonded vinyl, ceramic
tile, cement backer board, cement patch/underlayments,
radiant heat flooring, gypsum concrete and terrazzo. MVP4® may be applied to fresh “green” concrete as soon as it
has achieved “initial set” (when concrete can be walked on without disturbing the surface).
MVP4® contains Bostik BLOCKADE™ antimicrobial protection which inhibits the growth of bacteria, mold or mildew
on the surface of the dried membrane; the dried membrane resists stains caused by mold.
MVP4® independently tested in a controlled laboratory environment to
measure the IIC (Impact Insulation Class) according to ASTM E49204 and E989-89 and STC (Sound Transmission Class) according
to ASTM E90-04 and E413-04 standards installed with 9/16" thick
engineered wood flooring over a 6" concrete sub floor with a 5/8"
suspended gypsum ceiling, achieved an IIC = 62 and a STC = 61, with
no suspended ceiling, IIC = 49 and STC = 52.
Visit us on the Web at:
www.bostik-us.com
Directions for Use
Read and understand data sheet completely before beginning installation. Follow industry standards and wood flooring
manufacturer’s recommendations for design, layout and application of wood flooring materials; including test methods, jobsite
temperature and relative humidity. If jobsite conditions are outside of wood flooring manufacturer’s recommendations, take necessary
corrective actions.
Whether the moisture content of substrate exceeds or is within the wood flooring manufacturer’s recommendations, to address
current or possible future subfloor moisture, cracks (up to 1/8"), or noise, apply a layer of MVP4 according to directions and allow
material to cure for a minimum of 12 hours.
Surface Preparation
Surfaces must be clean, dry and smooth; free of voids, projections, loose materials, oil, grease, sealers and all other surface
contaminants. Completely remove cutback adhesive residue by sandblasting, shotblasting or scarifying. When sandblasting,
shotblasting or scarifying, surface texture must be similar to light broom finished concrete. Maximum acceptable floor variation is
3/16" in 10 feet. Surface areas requiring patching or leveling must be done using cement based patches, such as Bostik™ Fast
Patch 102™or SL-150™Self Leveling Underlayment prior to the application of MVP4.
PLEASE NOTE: Concrete substrates should NOT be smooth and reflective;
it should have a profile or broom-type surface texture for the adhesive/
membrane to properly penetrate and bond.
Installation
Apply MVP4 using the notched side of a Bostik #9 V-Notch Trowel (3/16" x 5/32" deep) to achieve a flat,
uniformly thick 60-mil membrane (thickness of a credit card). MVP4 is designed to level and heal with little
need for flat-troweling to achieve a continuous membrane.
Cure TIme
Allow MVP4 to cure, 12-16 hours prior to installation of flooring. Once cured, any pinholes or bubbles may be
filled with a Bostik urethane adhesive while wood flooring is installed.
Humidity affects cure to a greater degree than temperature; the higher the humidity, the faster the cure. Keep
off membrane until material cures; usually 12-16 hours. To help protect the cured membrane from scuffing,
tears, scratches, dust, dirt, or other jobsite contamination, install hardwood flooring as soon as possible.
Clean-up
As you work, immediately clean any
adhesive from prefinished flooring with
Bostik’s Ultimate™ Adhesive Remover
or mineral spirits (be careful not to harm
finish), then dry buff with a non-abrasive
paper towel.
Immediately clean all tools and equipment
with Bostik’s Ultimate™ Adhesive Remover
or mineral spirits before material cures.
TROWEL CLEAN-UP TIP: Before use,
cover areas of the trowel that are not used
to spread the adhesive with duct tape.
After use, simply tear off tape before
material cures, and clean the remainder of
the trowel with adhesive remover.
Storage/Shelf
Life
Store at temperatures
between 50°F and 100°F.
Shelf life is one year from date
of manufacturing in closed,
original packaging.
Re-Seal Partially Used
Container: With pail upright
place a sheet of plastic (e.g.,
trash bag) over the top of the
pail.
Secure lid tightly over the
plastic on top of pail. Carefully
turn pail upside down. Plastic
will help prevent the material
from bonding the lid closed.
Limitations
• Installation/jobsite must be within wood flooring manufacturer’s
recommended relative humidity and temperature range.
• Due to inherent limitations with gypsum based materials
in wet/moist environments, gypsum based patches/
underlayments should not be used with MVP4 to treat
moisture related issues. MVP4 may be used with gypsum
based patches/underlayments in dry, above grade installations
with minimum compressive strengths >2,000 psi for
engineered hardwood installation, or minimum compressive
strength >2,500 psi for solid hardwood installations, when
MVP4 only used as a noise reduction barrier and anti-fracture
membrane.
• Do not use over concrete slabs treated with sealers or curing
compounds.
• Completely remove cutback adhesive residue (and other
surface contaminants) by sandblasting, shotblasting, or
scarifying.
• Do not use MVP4 as an adhesive.
• Do not use in areas subject to hydrostatic head.
• Do not use MVP4 below VCT/vinyl or other flooring materials.
• MVP4 is not intended for use as a stand alone coating or
surface treatment. MVP4 is intended to be used under
glue-down wood flooring installations only.
• Do not use over VCT/vinyl when installing solid hardwood
flooring.
Re-Open Partially Used
Container: Carefully turn pail
right side up. Remove lid.
Carefully cut and discard
cured material and plastic
from top of pail. Any uncured
material may be used.
Membrane Reduces Moisture Vapor Emissions
• This membrane is designed to reduce moisture vapor
emissions that originate/emanate from below the
membrane only.
Wood Flooring
• This membrane does NOT reduce/affect issues originating
from the sides, ends, or top of flooring (ie. puddles, water,
leaks, hydrostatic-head, etc.).
• This membrane does NOT eliminate all possible moisture
related or install related isues (i.e. improper acclimation of
flooring, jobsite temperature/relative humidity, etc.).
or
Subfloor
u
ist
Mo
Moisture Vapor Protection
(MVP4®)
Any Bostik
Wood Flooring
Urethane Adhesive
p
Va
re
• This membrane is designed to prevent excessive variance
of moisture between the top,middle, and bottom of flooring
that originates from the substrate.
Chemical & Physical Properties
Water Vapor Permeability*
1
< 0.5
Elongation
>150%
Open/Working Time in minutes*
2
90 minutes
Application Temperature
50°F to 100°F
Service Temperature
-40°F to 150°F
Flash Point
142°F, closed cup
VOC Compliant (SCAQMD Rule 1168)
Yes (<126 g/L)
Odor
Mild
Color
Gray
Weight
12.66 lbs/gallon
3
Cure Time*
8 to 12 hours
Concrete Moisture Vapor Limits for subfloor moisture
vapor protection
ASTM 1869 Calcium Chloride Method
ASTM 2179 Relative Humidity Test
No Limit
No Limit / Dry-to-the-Touch
Concrete Moisture Vapor Limits for bond
No Limit / Dry-to-the-Touch
WARNING: Combustible liquid and vapor.
*1 Per ASTM E-96 Standard Test Methods for Water
Vapor Transmission of materials. Ratings are g/m2-24
hour-mmHG.
*2 Please refer to the Open/Working Time Chart.
*3 Humidity affects cure to a greater degree than tem-
perature; the higher the humidity, the faster the cure.
Under normal conditions, light foot traffic is acceptable
after 6 to 8 hours; normal traffic after 12-16 hours.
Packaging
MVP4 is available in
5 gallon pails, 27 pails/pallet
2 galllon pails, 96 pails/pallet
Suggested Notched Trowel for Maximum Performance
FOR USE AS AN ADHESIVE ONLY; REFER TO STANDARD ADHESIVE TROWEL RECOMMENDATIONS (FOR BONDING ONLY)
Harmful if swallowed. Inhaling vapors
harmful. May cause eye, skin and respiratory
tract irritation.
PRECAUTIONS: Keep away from Sparks
and Flames. Do not smoke, extinguish all
flames and pilot lights and turn off stoves,
heaters, electric motors and other sources
of ignition during use and until all vapors
are gone. Avoid contact with mouth, eyes,
skin and clothing. Wear chemical resistant
gloves and clothing during handling. Avoid
prolonged exposure to vapors. Use with
adequate ventilation. Prevent build up of
vapors by opening all windows and doors to
achieve cross-ventilation. Wash thoroughly
after handling. Store container in a clean, dry
area. Follow all warnings and precautions
with empty container as residues may
remain. Do not reuse container without
professional cleaning.
FIRST AID: If overcome by vapors, remove
to fresh air and call a physician. If necessary
give artificial respiration or oxygen. In case
of contact, immediately flush eyes and skin
with water and call a physician. If ingested,
DO NOT INDUCE VOMITING. Immediately
contact a hospital or poison control center.
Remove contaminated clothing to prevent
further exposure.
FOR INDUSTRIAL USE ONLY. SEE MATERIAL
SAFETY DATA SHEET.
3/16"
LIMITED
WARRANTY
5/32"
3/16" x 5/32"
3/16" x 5/32" V Notch
≤ 1/2" Engineerd Hardwood Flooring
Coverage: 45 sq.ft./Gallon
Trowel size is suggested to maximize coverage of adhesive. Periodically check coverage of adhesive during
installation; >80% coverage is required for all solid wood flooring that is less than 1/2" thick or any bamboo wood
flooring; > 95% coverage is required for all other wood flooring. Uneven subflooring may require the use of either a
leveling/patching material, or a larger V-notched trowel for proper coverage of adhesive. These trowels are available
from leading tool manufacturers such as Marshalltown (www.marshalltown.com) and your Bostik Distributor.
This document supercedes all previously published literature.
Bostik, Inc.
211 Boston Street, Middleton, MA 01949
Phone: 1-800-7BOSTIK
Fax: 978-750-7306
The Limited Warranty
for this product can
be obtained at www.
bostik-us.com/resourcecenter/warranties or by
calling 1-800-726-7845
(choose option 2, then
option 2 again). TO THE
MAXIMUM EXTENT
ALLOWED BY LAW,
BOSTIK DISCLAIMS ALL
OTHER EXPRESS OR
IMPLIED WARRANTIES,
INCLUDING
WARRANTIES OF
MERCHANTABILITY
AND FITNESS FOR A
PARTICULAR PURPOSE,
AND LIABILITY FOR
DIRECT, INCIDENTAL,
CONSEQUENTIAL, OR
SPECIAL DAMAGES.
UNLESS OTHERWISE
STATED IN THE LIMITED
WARRANTY, THE SOLE
REMEDY FOR BREACH
OF WARRANTY IS
REPLACEMENT OF THE
PRODUCT OR REFUND
OF THE BUYER’S
PURCHASE PRICE. It is
the buyer’s obligation
to test the suitability
of the product for an
intended use prior to
using it. Any claim
for a defective product
must be filed within 30
days of discovery of a
problem, and must be
submitted with written
proof of purchase.
H35-05-19-11