polyurethaneshybridsacrylicscrosslinkers

Picassian, the Polymers division of Stahl Holdings

Already in the 1910s, Harry Stahl began blending chemicals in his bathtub near

Boston (USA) for use in leather finishing tanneries. His skills proved so successful that

he later founded the Stahl Finish Co., and quickly expanded outside the USA to meet

the growing demand for leather chemicals around the world. In the decades after

World War II, Stahl built new factories and laboratories in Europe, South America and

Asia, in which polyurethanes, acrylics and crosslinkers were manufactured for use in

Stahl’s wide range of specialty coatings and finishes. With its headquarters in

Waalwijk, The Netherlands, Stahl today has 8 manufacturing sites, some 30 technical

centres and 1200 employees around the world.

Since the leather industry was among the first segments to convert from solvent to

waterborne polymer technology in the 1960s and 70s, Stahl was one of the first

companies to develop its own polyurethane dispersions, acrylic emulsions and

crosslinkers for use in coatings. During this time Stahl improved its polyurethane

technology in dramatic style, thanks to the unique properties provided by its own

polycarbonate diols, developed in the USA in the 1970s. This backward integration

in polycarbonate polyurethane technology has been a key factor in Stahl’s

technological success story over the years.

50 Years of experience

As the polymers division of Stahl, Picassian has more than 50 years of experience in

polymer technology. With this solid foundation we offer formulators of coatings and

inks a full range of polyurethanes, hybrid polymers, acrylics and crosslinkers to meet

their strictest performance requirements. We design each product with a specific

end use in mind, for a wide range of substrates including wood, plastic, metal,

flexible packaging, leather and textiles, and we invest much of our time and energy

developing compliant polymers that have a minimum impact on the community

and the environment.

From polycarbonate based polyurethanes to self crosslinking acrylics, and from

hybrids based on renewable resources to VOC-free crosslinkers, Picassian’s product

portfolio is broad and innovative.

Our commitment to service

Picassian strives to provide first class technical service for our customers, with quick

and reliable solutions from our experienced staff around the world. If you cannot

find what you are looking for in this catalogue, please do not hesitate to contact us

at www.Picassian.com and we will respond to your request by return.

Waterborne Acrylic EmulsionsPrOduct chemistrY sOlids (%) tg / mFFt (ºc) hardness ( König, sec.) Features, beneFits and uses

AC-122 Self-crosslinking 40 multiple / 35 110 Good chemical & blocking resitance. Used in high performance furniture coatings.

AC-126 Styrene-acrylic 40 50 / 60 160 For use in direct to metal (DTM) coatings.

AC-146 Cationic 40 40 / 46 50 Tannin blocker. For use in primers and sanding sealers, barrier coatings.

AC-169 Self-crosslinking 40 multiple / 18 73 High blocking resistance. For use in high performance furniture coatings.

AC-176 Styrene-acrylic, OH functional 47,5 30 / 37 130 OH functional resin, for oven bake systems with melamine. Excellent chemical resistance. For use in metal paints.

AC-188 COOH Functional, adhesion promoted 37 42 / 40 130 High performance polymer, with outstanding chemical resistance when used in combination with carbodiimides.

AC-213 Adhesion promoted 37,5 12 / 5 18 Forms flexible and elastic films with excellent adhesion on a wide range of substrates.

AC-222 Alkali soluble 40 48 / 22 110 Used in hobby adhesives, printing inks, and as a grinding binder.

AC-233 Metal bound 40 n.a. / 64 88 For industrial and domestic floor polishes. Excellent wear properties.

AC-271 Alkali soluble 48 31 / 13 116 Very good transfer to flat substrates. High pigment load capacity.

Waterborne Polyurethane-Hybrid Polymers PrOduct chemistrY sOlids (%) tg / mFFt (ºc) VOc (%) Features, beneFits and uses

HY-456 VOC free polycarbonate / acrylic 35 35 / 45 0 Solvent and amine free. Very hard. For flooring and furniture applications.

HY-460 Solvent free polyester / alkyd 39 < - 60 / 20 1,3 33% of solid content is derived from renewable resources. For glossy decorative paints & metal coatings.

HY-614 Polyester / alkyd 36 < - 60 / 0 7,1 35% of solid content is derived from renewable resources. High gloss decorative coatings. Very good brush application with a long open time.

Waterborne Polyurethane Dispersions PrOduct chemistrY sOlids (%) elOngatiOn (%) / % sOlVent Features, beneFits and uses 100% mOdulus (mPa) / max. tensile strength (mPa)

PU-406 Aliphatic polycarbonate 30 400 / 4 / 21 11,7 UV resistant soft resin. For ‘soft feel’ automotive plastics coatings.

PU-461 Aliphatic polycarbonate 35 188 / 9 / 13 14 Very hard film. Outstanding UV and chemical resistance.

PU-488 Aliphatic polyester 40 267 / 23 / 30 4,2 For flooring and wood furniture applications. Excellent weathering and abrasion resistance.

PU-625 Solvent free aliphatic polyester 38 300 / 11 / 14 0 For high-end wood furniture and flooring. Outstanding abrasion resistance.

PU-660 Solvent free aliphatic polycarbonate 39 180 / 14 / 18 0 Extremely hard and outstanding chemical resistance without crosslinkers.

PU-687 Aliphatic polyester 35 275 / 25 / 31 8,5 For high-end wood furniture and flooring. Outstanding abrasion resistance.

UV-628 Solvent free aliphatic UV curable 35 4 / - / 11 0 UV curable, hard PUD. Outstanding chemical resistance, compatible with acrylic emulsions.

High Performance Crosslinkers PrOduct chemistrY sOlids (%) sOlVent VOc (%) Features, beneFits and uses

XL-701 Multifunctional polycarbodiimide 50 MPA 48.5 For use in solvent or water based resins. High reactivity.

XL-702 Polycarbodiimide 40 Water 0 Long pot-life. Zero VOC. For exterior use. No yellowing.

XL-725 Multifunctional polycarbodiimide 100 - 0 Zero VOC. For use in solvent or waterbased resins. High reactivity.

XL-732 Polycarbodiimide 40 Water 0 Extended pot-life. Zero VOC.For exterior use. No yellowing.

EuropE EuropE

carbodiimide crosslinkers

Crosslinkers are chemicals that react with polymers to improve the physical and chemical properties

of a coating. Picassian is one of few polymer companies that also manufactures carbodiimide

crosslinkers to complement its resins. This patented technology is being used extensively around

the world to formulate high performance but also environmentally friendly coatings, with minimal

impact on air quality and the environment.

Carbodiimides selectively react with carboxylic acid COOH groups present on polymer chains.

This results in a 3D polymer-crosslinker network. Compared to other crosslinkers, like isocyanates,

carbodiimides have a significantly longer pot-life in waterbased coatings, and are less water

sensitive. They are also much easier to use and are label-free.

Picassian offers two types of carbodiimide crosslinkers - multifunctional and waterbased.

Multifunctional crosslinkers provide a denser network structure than traditional carbo diimides,

while our waterbased carbodiimides can provide the customer with a label-free and VOC-free

alternative to solvent-containing crosslinkers.

green chemistry

As part of the Stahl Group, a global market leader, we have an obligation to act responsibly and

secure a sustainable future so that we can keep providing the best quality service to our customers

and shareholders, and to do so without wasting the planet’s natural resources. That’s why Picassian

Polymers is committed to research and development that encourages the design of products and

processes that minimize the use and generation of hazardous substances. We do this by actively

searching for new raw materials which have less impact on the environment, and by designing our

products and processes to avoid pollution before it happens. The Picassian Polymers product

portfolio contains many water based products, solvent-free polyurethanes and hybrids, VOC-free

crosslinkers, and polymers based on renewable resources.

Picassian Polymers’ sustainable chemistry commitment extends beyond product design and

engineering too, since we strive to help our customers in formulating their paints, coatings and inks

in such a way that they have a minimal effect on the environment.

At Picassian Polymers we strongly believe in this responsibility and we are convinced that only a

commitment from the highest level, ensuring that CSR (Corporate Social Responsibility) is

embedded in our daily business and operations, guarantees that we actually can make a difference.

Carbodiimide crosslinking mechanism

info@picassian.comwww.picassian.com

Europe

Stahl Europe bv

Sluisweg 10

PO Box 31

5140 AA Waalwijk

The Netherlands

T +31 416 689 111

F +31 416 344 441

Mexico

Stahl de México S.A. de C.V.

Industrias Quimicas 105

50200 Zona Industial

Toluca Edo. de México

México

T +52 722 275 86 00

F +52 722 275 86 01 / 02

Spain

Stahl Ibérica S.L.

Llevant 7

08150 Parets del Vallès

Spain

T + 34 93 462 8200

F + 34 93 462 8223

India

Stahl India Private Limited

84 Vanpadi Road

Ranipet 632403

India

T + 91 41 7224 5005/6

T + 91 41 7224 6962

USA and Canada

Stahl USA Inc.

13 Corwin Street

Peabody MA 01960

USA

T +1 978 531 0371

F +1 978 532 9062

Brasil

Stahl Brasil S.A.

Rua Boa Vista 1832

93180-000 Portão – RS

Brasil

T + 55 51 3304 9900

F + 55 51 3562 1644

Singapore

Stahl Asia Pacific Pte. Ltd

14 Tanjong Penjuru Crescent

Singapore 608976

Singapore

T + 65 6265 7455

F + 55 6264 1497

China

Stahl Coatings &

Fine Chemicals Co. Ltd

West of Xujing Road,

South of Yongan Road

Xuguan Township Suzhou

New District

Jiangsu Province 215151

T + 86 512 6672 9878

F + 86 512 6672 9468

info@picassian.comwww.picassian.com Picassian polymers is a business unit