RayFlex® 765

Styrene Acrylic Elastomer

RayFlex 765 is a styrene acrylic elastomer designed for a wide variety of exterior coatings. It is ideal for flexible roof coatings, textured finishes, and wall mastics. Coatings formulated with RayFlex 765 offer excellent tensile strength, elongation properties, low temperature flexibility and outstanding water resistance.

Key Features
  • Superior elongation and strength
  • Excellent water resistance and vapor permeability
  • Low temperature flexibility
  • Good shear stability and reactive pigment compatibility
  • APEO-free
RayFlex® 765 Typical Physical Properties
Polymer Type Styrene Acrylic Emulsion Polymer
Weight Solids 50%
Viscosity (Brookfield Model RVT) 710 cps, #3/100 rpm
pH 7.4
Tg (MDSC) -26°C
MFFT (ASTM D-2354) <0°C
Particle size (Mean) 0.15 microns
Surfactant charge Anionic
Weight per gallon 8.6 lbs/gal
Freeze thaw stability Do Not Freeze
Download Technical Data Sheet


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.