SP SEAL COAT HT is a single-component hybrid resin, water-based coating using specific ceramic loads for application directly over HPC to seal and face up to 500° F (260°C). It was designed to provide a seal for HPC to block water/moisture absorption and seal the surface. HPC offers a ‘green’, nonflammable, non-toxic formula for surface applications. SP SEAL COAT HT is easily applied and can be applied direct to HPC. It will give additional protection for CUI development.


  • As the top coat for HPC. This is one optional top coat but is designed to face high heat.
  • Coating surface will never be hard. It is designed to stay flexible and prevent cracking over a surface that is prone to move.

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