Surfaces generally must be clean, dry, free from all defective or poorly adhering material, dirt, grease, wax etc.
Previously Painted Surface
Previously painted surfaces should be thoroughly rubbed down using a suitable abrasive paper and then dusted off.
Galvanised Metal Surfaces
Steel surfaces should be manually prepared by power or hand tool to BS 7079 Part A1:1989 St3. For optimum performance new galvanized and aluminum surfaces should be cleaned and degreased, then pre-treated with an appropriate pre- treatment primer to ensure good adhesion