PENESEAL PRO is a spray applied liquid sealer which forms a sub-surface barrier that protects the concrete against water penetration and seals existing cracks. When sprayed onto a thoroughly cleansed concrete surface, it will react with the concrete to form a sub-surface barrier.

This reaction product seals the pores capillaries and cracks. As long as water is present, the product will remain active and seal future hairline cracks.


  • Concrete roofs
  • Podium decks
  • Bridge decks
  • Terraces
  • Traffic bearing structures
  • Runways
  • Driveways


  • Seals existing cracks of up to 2mm in size.
  • New hairline cracks will be sealed on contact with water.
  • Protects concrete against water, chloride and sulphate ingress.
  • Increases chemical resistance.
  • Due to its sub-surface nature, it doesn’t affect the adhesion of subsequent products.
  • Increases surface hardness.
  • Simple, fast and economical application compared to alternative membrane systems.
  • Trafficable within 6 hours after first water curing without affecting protection.
  • It will not peel or scratch and the treated surfaces can be polished.
  • No negative screed necessary.
  • Non Toxic