1,Suitable for removing wax and silicon and so ... old paint film and needed spray substrates,suitable for removing wax and silicon and so onSubstratesNaked metal, ... paint fillm,solided putty,Filler,sanded substratesMixing RatioReady for useUsage1. Clean and sand the needed substrate 2 ... years in original sealedPackaging1L,4LAbove products are designed for special using, please reference to the label ...