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R- 7.8 , 2-in x 4-ft x 8-ft Faced Polystyrene Board Insulation

Perma "R" Products R- 7.8 , 2-in x 4-ft x 8-ft Faced Polystyrene Board Insulation

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Can this be coated with Armorseal epoxy without preparation/priming?


Epoxy does *not* attack EPS/XPS (polystyrene); documented by epoxy vendors and DIYers on youtube. VINYL and POLYESTER resins/solvents will melt it.

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No. Most epoxy coatings have a solvent which will attack the EPS foam. Contact Insulfoam Technical Center at 800-469-8870.

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