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 paint. Gunzite is especially effective on sandblasted surfaces.
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 paint. DO NOT use epoxy primers in conjunction with rubber-base coatings.