GEMCOAT Mold-Resistant Coating Additive™

A coating additive for use with our Gemcoat™ concrete sealers. When applied to concrete masonry units, this coating creates an anti-microbial film that will help inhibit the growth of bacteria, mold and mildew on the coating.

Two Versions Available:
Gemcoat Mold Resistant Coating Additive™
Solvent-based formulation (for mixing with GEMCOAT™)

Gemcoat-WB Mold Resistant Coating Additive™
Water-based formulation (for mixing with GEMCOAT-WB™)


1. Add 1 fl oz of agent per 1 gallon of Gemcoat® sealer.
2. Mix well.

Available in 5 fluid ounce containers.

Download Product Data Sheets