Armorgard 541 FST

  • Solvent Free & Zero VOC
  • Extremely Tough, Non Brittle Surface
  • Single Coat Application
  • Seals Hotwire Cut Foam Patterns
  • Low Heat on Cure
  • Does Not Distort Mold Shape
  • Cures 3 times faster than Armorgard 541

Armorgard 541FST 

Armorgard 541FST is a 100% solids, thixotropic, primerless, odorless, epoxy coating for foam patterns and molds used in precast concrete applications. Armorgard 541FST is formulated to provide a hard tough coating for EPS foam and Styrofoam without using hazardous, foam damaging, solvents. Armorgard 541FST is able to coat horizonal, vertical, & rounded (radius) foam surfaces. Use of Armorard 541FST transforms a ‘rough’ foam surface into a hard, durable, & sandable surface, providing consistent ‘architectural’ quality casts over multiple pours.

Armorgard 541FST has a 5 to 1 mix ratio and provides a convenient work life. Armorgard 541FST was designed from conception to be the ideal foam coating with a tack free time 5 times faster & an initial cure time 3 times faster than Armorgard 541.

Armorgard 541FST can be easily applied with a roller or brush. Recommended application thickness is 15 to 30 mil (0.38-0.76mm). Application can vary depending on the porosity & roughness of the surface being coated. Maximum application thickness is 1/8” (125 mil or 0.3cm). Armorgard 541FST is conveniently packaged in pre-measured 4 gallon kits with bulk kit sizes available upon request. Armorgard 541FST is dyed light blue in all kit sizes to provide an easy visual check for application thickness as well as to serve as a wear indicator for the coating.

Surface preparation, application instructions, & handling properties of Armorgard 541FST can be found in the Specs PDF. Please contact a Fister Inc representative for technical questions & pricing.