PermaRez® 345M

PermaRez® 345M Membrane is a durable elastomeric coating used as an underlayment/coating to bridge cracks in concrete. Used with PermaRez 345S Saturant and Fiberglass reinforcement, it provides a tough, stress relieving lining system to which chemical resistant coatings are applied.

Recommended Uses

  • Chemical processing floor areas
  • Drum storage pads
  • Secondary containment
  • Trenches and sumps
  • Truck loading/unloading areas
  • Concrete clarifiers


  • Bridges moving & non-moving concrete cracks
  • Chemical resistance exceeds typical flexible membranes
  • High point load strength; supports vehicular and foot traffic-bearing surface
  • Used with PermaRez 345 Saturant and Fiberglass, provides tough stress relieving membrane on which chemical resistant coating systems are applied