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Materials

Materials February 1992 PIGMENT AND RESIN TECHNOLOGY 23 Pearl paste dispersion A further aqueous dispersion has between application properties and been developed fo r thick fil m coatings, In response to a growing industry end-use benefits, combining excellent XZ 94784.00, used to water-proof tren d to waterborne coatings and rheology and levelling with high printing inks, The Mearl Corporation, roofs or bridge cracks on building gloss and good adhesion. Compared Ne w York, has introduced a new, façades. It is the basis of a self- wit h an alkyd solvent-based paint water-based, pearl paste dispersion crosslinking coating system that system, a water-borne gloss paint called Mearlite Ultra Bright UWA. results in low dirt pick-up and incorporating this ne w Dow disper­ excellent flexibility even at very low sion will show superior long-term A bismuth oxychloride pearl, temperatures (−20 degrees celsius). performance in term s of gloss reten ­ Mearlite Ultra Bright UW A is supplied tion and colour fastness. fully dispersed in a water-based For more tha n 5 0 years, Do w has formulation . Pigment content is 60 % been involved in the development Aqueous dispersion XZ 94454.00 wit h total solids of 63%. This pearl has been formulated for use as a an d manufactur e of latex dispersions paste dispersion is characterised by and has come to be one of the moisture vapour barrier on plaster it s exceptional brilliance which world' s largest supplier of aqueous board wall s or the internal surfaces produces a sharp, almost metallic- dispersions. Following its decisio n to of high humidity rooms. It can also like, silvery effect. It can be used invest in a ne w acrylate manufactur­ be used to manufacture primer alone, or combined with organic ing plant at Rheinmünster, Germany sealer s for renovating surfaces colourants and dyes to create non- (announced, February 1991), a steady stained with , for example, nicotine, tarnishing finishes exhibiting intense, expansion of dispersion grades is tanni n or smoke. This new grade lustrous, metallic-like pearlescent no w planned. Al l in part to reinforce makes it possible to produce water- colours. the company's position as an inde­ based paint s tha t wil l reliably prevent pendent supplier to the paint and Mearlite Ultra Bright UWA is bleeding of stains from substrates. coatings industry. recommended for waterborne surface Previously, such a result wa s gener­ coatings, flexo, gravure and screen ally obtained using conventional "Thes e new grades match very solvent-based systems. printing liquid inks. specific industry requirements," says Additional technical information Patrick Masson, marketin g manager, Stoving enamels used for coating an d sample s of Mearlite Ultra Bright dispersions (paints and coatings) at whit e goods, automotive parts and a UW A can be obtained by contacting wid e variety of metal products and Do w Europe. "That is the way we The Mearl Corporation, 41 East wil l continue. When it comes to components need to provide excellent 42n d Street, New York, NY 10017. further increasing our product 'port­ solvent resistance and mechanical Tel: 21 2 573 8500. folio' w e wil l be workin g closely wit h properties. The new Dow aqueous our customers, their formulations dispersion for this application, XZ and their processes to arrive at Aqueous dispersions for water- 94780.00 , results in coatings with an excellent balance of hardness product solutions that at least help based paints and flexibility that give high gloss the m to pre-empt environmental Continuing its efforts to better service requirements and may even help finishes with better than usual th e paint industry, Dow Europe the m sustain a competitive difference resistance to solvents and staining. introduces seven new grades of in their ow n markets." Wit h this system, coaters have the aqueou s dispersions specifically choice of an environmentally accep­ designed for water-based industrial table water-base d coating tha t offers an d architectural applications. Details: Dow Europe S.A., Bad- an effective alternative to powder enerstrass e 170, 8036 Zürich, Al l the new grades have been coating. Switzerland. Tel: +4 1 (1) 24 6 32 29 . developed i n response t o th e market's search for water-based coatings that The new Dow product designed meet the performance standards of for industrial wood coatings, XZ traditional solvent-based systems. 94790.00 , allows a lo w coalescent, DL 43 0 is a new coalescent-free water-borne system that will be of aqueous dispersion which allows particular benefit for high volume paint manufacturers the advantages production of furniture and kitchen of producing solvent-free paints units wher e th e emission of volatiles withou t sacrificing technical quality. can pose problems. This dispersion This ne w grade is particularly suitable has rapid early hardness development for high PVC paint s wher e it ensures close to that obtained in a solvent- excellent technical performance and based system. stability. This aqueous dispersion XZ 94770.0 0 has been developed has very low organic residue and to improve corrosion resistance in requires no additional solvent or ambient-cure, anti-corrosion primers plasticiser. Nevertheless, it results in for factory or on-site application. paints that form a hard and durable This is a furthe r development of an fil m at lo w temperatures to provide a existing Dow grade and has per­ final coating with excellent wash- forme d well in three-year outside ability on drying. exposure tests. Formulated with suitable active pigments , th e system Do w has also developed a disper­ show s good humidit y and salt spray sion for gloss paint, XZ 94785.00, cabinet resistance. whic h results in a better balance http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pigment & Resin Technology Emerald Publishing

Materials

Pigment & Resin Technology , Volume 21 (2): 1 – Feb 1, 1992

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0369-9420
DOI
10.1108/eb042916
Publisher site
See Article on Publisher Site

Abstract

February 1992 PIGMENT AND RESIN TECHNOLOGY 23 Pearl paste dispersion A further aqueous dispersion has between application properties and been developed fo r thick fil m coatings, In response to a growing industry end-use benefits, combining excellent XZ 94784.00, used to water-proof tren d to waterborne coatings and rheology and levelling with high printing inks, The Mearl Corporation, roofs or bridge cracks on building gloss and good adhesion. Compared Ne w York, has introduced a new, façades. It is the basis of a self- wit h an alkyd solvent-based paint water-based, pearl paste dispersion crosslinking coating system that system, a water-borne gloss paint called Mearlite Ultra Bright UWA. results in low dirt pick-up and incorporating this ne w Dow disper­ excellent flexibility even at very low sion will show superior long-term A bismuth oxychloride pearl, temperatures (−20 degrees celsius). performance in term s of gloss reten ­ Mearlite Ultra Bright UW A is supplied tion and colour fastness. fully dispersed in a water-based For more tha n 5 0 years, Do w has formulation . Pigment content is 60 % been involved in the development Aqueous dispersion XZ 94454.00 wit h total solids of 63%. This pearl has been formulated for use as a an d manufactur e of latex dispersions paste dispersion is characterised by and has come to be one of the moisture vapour barrier on plaster it s exceptional brilliance which world' s largest supplier of aqueous board wall s or the internal surfaces produces a sharp, almost metallic- dispersions. Following its decisio n to of high humidity rooms. It can also like, silvery effect. It can be used invest in a ne w acrylate manufactur­ be used to manufacture primer alone, or combined with organic ing plant at Rheinmünster, Germany sealer s for renovating surfaces colourants and dyes to create non- (announced, February 1991), a steady stained with , for example, nicotine, tarnishing finishes exhibiting intense, expansion of dispersion grades is tanni n or smoke. This new grade lustrous, metallic-like pearlescent no w planned. Al l in part to reinforce makes it possible to produce water- colours. the company's position as an inde­ based paint s tha t wil l reliably prevent pendent supplier to the paint and Mearlite Ultra Bright UWA is bleeding of stains from substrates. coatings industry. recommended for waterborne surface Previously, such a result wa s gener­ coatings, flexo, gravure and screen ally obtained using conventional "Thes e new grades match very solvent-based systems. printing liquid inks. specific industry requirements," says Additional technical information Patrick Masson, marketin g manager, Stoving enamels used for coating an d sample s of Mearlite Ultra Bright dispersions (paints and coatings) at whit e goods, automotive parts and a UW A can be obtained by contacting wid e variety of metal products and Do w Europe. "That is the way we The Mearl Corporation, 41 East wil l continue. When it comes to components need to provide excellent 42n d Street, New York, NY 10017. further increasing our product 'port­ solvent resistance and mechanical Tel: 21 2 573 8500. folio' w e wil l be workin g closely wit h properties. The new Dow aqueous our customers, their formulations dispersion for this application, XZ and their processes to arrive at Aqueous dispersions for water- 94780.00 , results in coatings with an excellent balance of hardness product solutions that at least help based paints and flexibility that give high gloss the m to pre-empt environmental Continuing its efforts to better service requirements and may even help finishes with better than usual th e paint industry, Dow Europe the m sustain a competitive difference resistance to solvents and staining. introduces seven new grades of in their ow n markets." Wit h this system, coaters have the aqueou s dispersions specifically choice of an environmentally accep­ designed for water-based industrial table water-base d coating tha t offers an d architectural applications. Details: Dow Europe S.A., Bad- an effective alternative to powder enerstrass e 170, 8036 Zürich, Al l the new grades have been coating. Switzerland. Tel: +4 1 (1) 24 6 32 29 . developed i n response t o th e market's search for water-based coatings that The new Dow product designed meet the performance standards of for industrial wood coatings, XZ traditional solvent-based systems. 94790.00 , allows a lo w coalescent, DL 43 0 is a new coalescent-free water-borne system that will be of aqueous dispersion which allows particular benefit for high volume paint manufacturers the advantages production of furniture and kitchen of producing solvent-free paints units wher e th e emission of volatiles withou t sacrificing technical quality. can pose problems. This dispersion This ne w grade is particularly suitable has rapid early hardness development for high PVC paint s wher e it ensures close to that obtained in a solvent- excellent technical performance and based system. stability. This aqueous dispersion XZ 94770.0 0 has been developed has very low organic residue and to improve corrosion resistance in requires no additional solvent or ambient-cure, anti-corrosion primers plasticiser. Nevertheless, it results in for factory or on-site application. paints that form a hard and durable This is a furthe r development of an fil m at lo w temperatures to provide a existing Dow grade and has per­ final coating with excellent wash- forme d well in three-year outside ability on drying. exposure tests. Formulated with suitable active pigments , th e system Do w has also developed a disper­ show s good humidit y and salt spray sion for gloss paint, XZ 94785.00, cabinet resistance. whic h results in a better balance

Journal

Pigment & Resin TechnologyEmerald Publishing

Published: Feb 1, 1992

There are no references for this article.