PolySpec® 300EX

PolySpec® 300EX is a penetrating, moisture tolerant, two-component epoxy primer used to prime concrete surfaces for high performance applications. It is commonly utilized as part of a complete flooring system and is also suited for use with epoxy novolac lining systems.

Recommended Uses:

  • Concrete primer, as part of a complete TuffRez® flooring system
  • Concrete primer, as part of a complete epoxy novolac lining system


  • Seamless, high tensile strength composite
  • Extremely low permeation rate; superior performance to acid-proof brick
  • Excellent dimensional stability; withstands wide temperature range
ITW Engineered Polymers