RayFlex® 613

All Acrylic Emulsion

RayFlex 613 is a high solids, high performance, all acrylic emulsion polymer. It is specifically designed for wall mastics, caulks, sealants, chinking compounds, and roof coatings applications. RayFlex 613 can be formulated at higher volume solids and with high pigment loads. Coatings formulated with RayFlex 613 have excellent flexibility and crack resistance, exhibit less shrinkage, and provide outstanding joint movement capability.

Key Features
  • Excellent flexibility and less shrinkage
  • Outstanding adhesion
  • Superior exterior durability
RayFlex® 613 Typical Physical Properties
Polymer Type Acrylic Emulsion Polymer
Weight Solids 62%
Viscosity (Brookfield Model RVT) 460cps, #3/100 rpm
pH 8.5
Tg (MDSC) -19°C
MFFT (ASTM D-2354) <0°C
Particle size (Mean) 0.28 microns
Surfactant charge Anionic
Weight per gallon 8.7 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.