RayKote® 444S

Styrene Acrylic Emulsion

RayKote 444S is a styrene acrylic emulsion designed for blending with cement for flexible concrete and crack resistant stucco. Specifically designed as a polymer modifier for cement, it exhibits excellent compressive strength and crack resistance. Its high alkalinity allows compatibility with “green” cement to yield flexible concrete patches and overlays.

Key Features
  • Superior compressive and flexural strength
  • Excellent crack resistance
  • Outstanding adhesion to old concrete and masonry surfaces
RayKote® 444S Typical Physical Properties
Polymer Type Styrene Acrylic Emulsion Polymer
Weight Solids 50%
Viscosity (Brookfield Model RVT) 85 cps, #1/100 rpm
pH 9.5
Tg (MDSC) 6°C
MFFT (ASTM D-2354) 3°C
Particle size (Mean) 0.23 microns
Surfactant charge Nonionic
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.