Given the large number of different sealants on the market, we cannot guarantee success of RAPTOR painted over a different sealant. those already on a vehicle, rather than one being freshly applied as part of this painting process) we would recommend to remove the sealant and reseal using Tigerseal, as aged sealant can be very unpredictable on how well it accepts paint. Likewise, we do not recommend the use of an epoxy primer between Tigerseal and RAPTOR. ACID#8 or GRIP#4) as this causes worse adhesion rather than better when used over this sealant. When applying RAPTOR over Tigerseal, we do not recommend any adhesion promoter (eg. For Tigerseal if not overpainted within 1 day for best results abrade it with gray scotch and degrease and tack off before application of the RAPTOR. When using any sealant you need to check the overcoat window on the sealant TDS before use to avoid potential adhesion issues later. The only sealant recommended unreservedly for use with RAPTOR is U-POL Tigerseal, which has been thoroughly tested for compatibility in our laboratories. There are a large number of sealants on the market, of various different types and technologies.
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