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Reverté Group
• FOUNDATION:
• ACTIVITY:
• FACILITIES:
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1958
Production of Technical Calcium Carbonates
3 Production Sites & 3 Commercial Offices
• PRODUCTION CAPACITY:
>1,6 million Metric Tones
• ANNUAL TURNOVER :
> 60 millions Euros
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Factories
Castellet i la Gornal (Barcelona- Spain), Albox (Almería-Spain) & Dinamita (DurangoMéxico)
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Commercial trade names
Microcarb® - Calfort® - Litocarb® - Granifort® - Micral® - Calcipore® Nutripure®
Applications
• Paper & Paperboard
• Polymers & Rubber
• Paints & Coatings
• Adhesives
• Construction
• Food Additive (E-170)
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Products and Applications
Products
Calcium carbonates:
- from 2 mm granules to 0.5 microns D50 ultrafine
grades
- natural, surface coated & in slurry form
Origin of the raw mineral
White calcite (Barcelona - Spain)
White marble (Almería - Spain)
White marble (Durango - México)
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Presence in the World
• Export sales represent more than 50 % of our total turnover
• Sales in over 80 countries, 20 in Europe and 60 in the rest of the world
• Present in 63 countries (via our own Personnel & Agents & Distributors).
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Quality Assurance
ISO 9001
Company certified ISO 9001 since 1997
( Lloyd’s Register Quality Assurance)
Sanitary & Food Registration
• Company Registered in the list of Industries & Food Additives of Cataluña
• Products compliant to the Food Chemical Codex, FDA.. (USA) and to the BFA
(Germany)
• Products certified E-170 (Food Additive-Europe)
Certification for the Construction Industry
Products certified for the construction sector according to the standards UNE EN
13139 & UNE EN 12620 ( Lloyd’s Register Quality Assurance)
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Environmental Certifications
Environmental License & Environmental Authorization
2001:
the
Environmental License according to European Directive IPPC in
Barcelona Plant. Renewed in 2012
2008:
IPPC
Environmental Authorization according to the European Directive
for the quarry .
ISO 14001 & EMAS
2009:
in the
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Environmental Management System Certified ISO 14001 & EMAS
Barcelona Plant.
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Health & Security
OHSAS 18001
Health & Security System Certified OHSAS 18001 for the plants of Barcelona &
Almeria-Spain. March 2012. Certified by AENOR
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Reverté’s Calcium Carbonates for Paints
Extra white extenders based on marble
PAINT CLASSIFICATION
LOW PVC
(15 a 35)
MEDIUM PVC
(40 a 55)
HIGH PVC
(60 a 80)
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TYPE OF PAINT
PRODUCT
D50 (µm) D98 (µm)
Advantages of our extra white GCC
High gloss paints
Micral OPAC
Extra
0.8
3.5
Maximum gloss, great TiO2 extending power maintaining high
opacity. Savings of other extenders (PCC, Zinc Silicate)
Semi gloss paints
Micral 1
1.0
6.5
High gloss, great TiO2 extending power maintaining high
opacity.
Satin finish paints
Micral 2
2.0
15
Satin finish, very low binder demand
Matt Emulsion
paints
Primers
Micral Extra
3.0
Interior semi matt
paints
Micral 2
2.0
15
Semi-matt finish, high whiteness and hiding power, low binder
demand
Interior wet scrub
resistant Matt
paints
Micral 10
4.0
29
Very low sheen, high whiteness and great wet scrub
resistance, low binder demand
Micral Extra
3.0
17
Low sheen maintaining high whiteness and dry opacity and
good wet scrub resistance
Micral 10
M. Blue Matt
4.0
11.0
29
55
Very low sheen maintaining high whiteness and dry opacity
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and good wet scrub resistance, very low binder demand
Interior matt paints
High dry opacity /
hiding power
Low cost matt paint
17
Matt finish with good hiding power and low binder demand
Less TiO2 with MICRAL® OPAC EXTRA
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What TiO2 provides:
Whiteness
Opacity
UV protection
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How MICRAL® OPAC EXTRA
responds to the above requirements:
Whiteness: Micral OPAC EXTRA is obtained from ultra-white marble with L
(luminosity) > 98 and b (yellow index) < 1.
Opacity: The specific design of Micral OPAC EXTRA particle size distribution leads to
higher opacity than any competitor’s grade.
UV protection: The low amount of iron oxide in Micral OPAC EXTRA does not
negatively affect the thermal & UV stability of the paint film.
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MICRAL® OPAC EXTRA
in matt decorative paints
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Matt economic emulsion paint-high PVC (68%)
COMPOSITION
Weight %
Water
Chemiphos 100 (wetting agent)
Natrosol® 250 (HEC-thickener)
NaOH
Chemicryl 500 C (dispersant)
Densipol PA 2497 (antifoam)
TiO2
MICRAL® EXTRA
MICRAL® OPAC EXTRA
Acrilem® ST 190 50%
UcarTM Filmer IBT (coalescing agent)
Biopol JM-29 (biocide)
36,06
0,18
0,52
0,03
0,40
0,30
4,36
41,00
6,00
10,00
1,00
0,15
TOTAL =
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100,00
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Saving TiO2 with MICRAL® OPAC EXTRA
Formulation with 4,5% TiO2
CaCO3
CR (%)
Sheen (85º)
MICRAL® OPAC EXTRA
( 0% w/w in the paint.
47% MICRAL EXTRA)
85,9
3,9
Formulation with 4,36% TiO2 (saving 3% TiO2)
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CaCO3
CR (%)
Sheen (85º)
MICRAL® OPAC EXTRA
(6% w/w in the paint,
41% MICRAL EXTRA)
85,5
3,8
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MICRAL® OPAC EXTRA
in gloss enamels
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FEATURES of MICRAL® OPAC EXTRA:
In high gloss enamels containing initially 24%
TiO2 it can replace up to 12% TiO2 in volume
keeping the gloss & opacity of the enamel.
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TEST FORMULATION FOR HIGH GLOSS ENAMEL:
INITIALLY IT CONTAINED 24% TiO2. 12% BY VOLUME OF TiO2 WAS REPLACED BY MICRAL OPAC EXTRA TO KEEP PVC
CONSTANT
COMPOSITION
ALKYDIC RESIN (55% WHITE SPIRIT)
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63%
THIXOTROPIC ALKYDIC RESIN (40% WHITE SPIRIT)
-----
TITANIUM DIOXIDE
22%
MICRAL OPAC EXTRA
2%
CALCIUM NAFTENATE 4%
1%
COBALT NAFTENATE 6%
0.4%
LEAD NAFTENATE 24%
0.6%
ZIRCONIUM NAFTENATE 12%
0.2%
ANTISKIN AGENT
0.3%
SOYA LECITHIN
0.3%
TEXAPHOR
-----
BLUE+VIOLET
0.1%
BENTONITE SOLUTION
0.4%
WHITE SPIRIT
9.65%
ANTISLIP AGENT
0.05%
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High gloss enamels
GLOSS at 60º
GLOSS at 85º
Whiteness
Opacity
Formulation without
MICRAL
OPAC EXTRA
Formulation with MICRAL
OPAC EXTRA
2d
88.1
89.7
6M
84.2
86.1
2d
95.8
97.4
6M
93.9
95.6
Yfb
84.03
84.11
Xfn
80.12
80.70
L
93.46
93.30
a
-0.31
-0.17
b
2.88
2.74
Yfn/Yfb
95.84
95.75
The films were applied on lenetas using a draw-down bar with 150 microns gap and were stoved for 30 minutes at 130 ºC.
Whiteness was measured with Spectraflash SF 450. Gloss measured with a Minolta Multigloss 268.
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