RayFlex 787

Self-Crosslinking 100% Acrylic Polymer for Flexible Roof Coatings

RayFlex 787 is an APEO free, self-crosslinking, 100% acrylic emulsion polymer designed for flexible roof coatings. Coatings formulated with RayFlex 787 have excellent water and efflorescence resistance, low temperature flexibility, and outstanding tensile properties. RayFlex 787 provides superior adhesion to polyurethane foam and various construction substrates.

Key Features
  • Superior adhesion to polyurethane foam
  • Excellent dirt pickup resistance
  • Excellent tensile properties
  • Very good water resistance and low temperature flexibility
  • APEO free
RayFlex 787 Typical Physical Properties
Polymer Type 100% Acrylic Emulsion Polymer
Weight Solids 55%
Viscosity (Brookfield Model RVT) 520 cps, #3/100 rpm
pH 7.2
Tg (MDSC) -26°C
MFFT (ASTM D-2354) <0°C
Particle size (Mean) 0.18 microns
Surfactant charge Anionic
Weight per gallon 8.6 lbs/gal
Freeze thaw stability Do Not Freeze
RayFlex 787 Typical Performance Properties

If any product is defective in workmanship or materials, Specialty Polymers, Inc. will replace the product. The information contained in this Technical Bulletin is intended to be a guideline. It is offered in good faith, but without guarantee. We recommend users of the product perform their own testing to determine the suitability of the product in their application.