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Sur-Prep™ AP-1 Adhesion Promoter

Sur-Prep™ AP-1 is an adhesion promoter that can be used in place of scuff sanding between coats of polyurethane topcoats. It helps to re-activate the surface of the existing topcoat for subsequent topcoats application without the need for manual sanding. It can also be used for applying stencil markings to existing topcoat.


  • Compatible with urethane topcoats
  • Eliminates sanding
  • Can be sprayed with HVLP, airless, air assisted airless and conventional spray gun
  • Available in easy to mix packaging and aerosol spray


  • BMS 10-127