PARALOID A-21 30%

THERMOPLASTIC SOLUTION RESIN
  • Product Type: Acrylic
  • Master Product Number: MITM03994
  • Product SKUs: ITM13260, ITM13261, ITM13328
  • CAS: 108-88-3

Product Details

PARALOID™ A-21 Themoplastic Solution Resin (30%) is a methyl methacrylate thermoplastic acrylic resin with enhanced adhesion properties. It is provided as a 30% solution in a toluene/butanol system. The polymer is also available in a solid grade form. Lacquers formulated with PARALOID™ A-21 Thermoplastic Solution Resin (30%) possess excellent intercoat adhesion, hardness, and outdoor durability. PARALOID™ A-21 Thermoplastic Solution Resin (30%) will air-dry rapidly to give clear, colorless films that have excellent resistance to yellowing.

Benefits:

  • Very hard resin with enhanced adhesion
  • Excellent exterior durability

Typical Applications

  • Direct to metal applications
  • Primer formulations as well as coil coatings
  • With plasticizers or other modifiers to make coatings for metal, vinyl, and plastics
  • Recommended for lacquers, vinyl and metal clear coats, gravure inks and overprint varnishes, top coats for plastic
  • General industrial finishes
  • Automotive refinishing
Typical Physical Properties Value & Unit
Density 7.8 lb/gal
Glass Transition Temperature (Tg) 105 °C
Hardness 21 - 22
Solubility Parameter 9.4
Solid Content 30 %
Molecular Weight 120000
Viscosity 250 - 560 cP
Flash Point 7.8 °C

About Dow Coating Materials

Dow Coating Materials leads innovation in technologies that help advance the performance of paints and coatings. Its water-based acrylic emulsion technology revolutionized the global paint industry, and was named a historic chemical landmark by the American Chemistry Association. Dow Coating Materials offers a broad portfolio of binders, dispersants, rheology modifiers and surfactants for a wide variety of end markets.

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