Plaster Primer

Plascon Plaster Primer acts as a barrier between new alkaline plaster and subsequent topcoats. It may also be used as a binding agent for soft and powdery plaster, and as a sealer on exceptionally porous surfaces.

Technical Data Sheet

Safety Data Sheet


  • As a primer coat on alkaline substrates such as interior and exterior cement plaster and concrete
  • As a binding and sealing coat on soft and brittle cement plaster, porous paper-face board, brickwork, soft board and gypsum plaster


  • Provides good adhesion
  • Can be used with solvent-based and water-based topcoats