SUBSTRATE PREPARATION
All surfaces to be coated should be thoroughly cleaned by conventional means.
Allow a minimum of 28 days before overcoating new concrete. The concrete should have a Pull off strength ≥ 1.5 N/mm². Defects or damage to concrete decks must be made good using appropriate polymer modified repair mortar. Any repairs should be allowed a minimum of 72 hours to cure and until such time as the moisture content has fallen to the permissible level.
Steel is ideally prepared by shot blasting to Sa 2½ or SSPC 10 (nearly white metal). Where blasting is not permitted then clean metal preparation by power tools is acceptable.
Non-ferrous metals are prepared by removing deposits of dust and oxidation and abrade to white metal. Wire brushing can be used on soft metals, i.e. copper.
Ensure that surfaces are free from visible dampness and that all dust, loose and friable material is completely removed from all surfaces before application of the product, preferably by brush and/or vacuum.