PARALOID™ A-646 Themoplastic Solution Resin (45%)

PARALOID™ A-646 Themoplastic Solution Resin (45%) by Dow Chemical is a very hard methyl methacrylate polymer supplied at 45% solids in methyl ethyl ketone (MEK). It is a lower molecular weight analog of PARALOID™ A-101 Thermoplastic Solution Resin (40%). It has excellent adhesion to plastic substrates and primer coats. Offers fast drying, durablity, and has excellent resistance to water and salt spray. The lower molecular weight of PARALOID™ A-646 Thermoplastic Solution Resin (45%) allows for higher solids formulations. Coatings based on PARALOID™ A-646 Thermoplastic Solution Resin (45%) are also lower in viscosity for higher gloss and better reflow than PARALOID™ A-101 Thermoplastic Solution Resin (40%). PARALOID™ A-646 Thermoplastic Solution Resin (45%) is recommended for clear coatings for metal and wood, gravure printing inks, and barrier coatings for plastic.