Olympic makes two types of epoxy primer for unfinished concrete or plaster surfaces. Bare plaster or concrete are highly absorbent materials which tend to soak up the first coat. Therefore, a primer should be used to soak in, seal the surface, and provide a smoother profile for surfacing. These primers should only be used as a base coat for POXOLON or ZERON. DO NOT use epoxy primers in conjunction with rubber-base coatings.
GUNZITE is a two-part epoxy primer for application over fiberglass or unusually rough plaster or concrete. The heavy viscosity of GUNZITE acts as a fill coat on concrete and plaster and provides a much smoother surface, GUNZITE should only be used as an undercoat for POXOLON or ZERON. GUNZITE is especially effective on sandblasted surfaces.