Surface must be properly prepared. Remove all oil, dust, grease, dirt, loose, and foreign materials to ensure adequate adhension.

Steel: Surfaces must be a "near white metal" blast to SIS-Sa 2 1/2. With a 3 mil profile. Prime with anticorrosive primer prior to spraying. Steel surfaces shall be dry and clean, free from any dirt, grease, oil and other contamination before priming and spraying.

Concrete: Concrete surfaces prepared according to NACE standard RP0892-92. Allow substrate to dry thoroughly prior to priming (minimum substrate of new concrete cure is 28 day). Remove all from loose dust or other foreign matter and prime with primer sealing primer at 1~2 coats prior to spraying.

Fiber Reinforced Plastic (FRP):Remove all foreign material from surface and prime with anticorrosive primer at at 1~2 coats prior to spraying.

EVA/Polyurethane foam (PUF): Directly spray without any surface preparation.