Extreme Seal Primer Sealer is a high-performance concrete primer and sealer formulated to improve the adhesion and lifespan of floor coatings. Its solvent-based composition penetrates deep into porous surfaces such as concrete, plaster, and masonry to create a strong, stable base for topcoats.

Ideal for both domestic and industrial settings, this product reduces surface absorption, locks in dust, and enhances the durability of polyurethane or epoxy paints applied over it.

Whether you're painting garage floors, commercial spaces, or concrete slabs, Extreme Seal is the floor primer for concrete you can rely on.

 Uses and Surface Compatibility

Recommended For:

• Concrete floors (interior & exterior)
  

• Industrial units and commercial spaces
  

• Plastered walls
  

• Screeded surfaces
  

• Garage and workshop floors
  

• Pre-paint sealing
  

Compatible Products

• FloorMaster Polyurethane Floor Paint
  

• Trade Paints PU Thinner
  

• Anti-Slip Additive
  

Special Properties

• Solvent-based for deep penetration
  

• Improves paint adhesion
  

• Reduces the absorbency of porous surfaces
  

• Dust-proofing properties
  

• Moisture-resistant
  

• Suitable for indoor and outdoor use
  

 Spreading Rate

Approx. 6–8 m² per litre per coat, depending on the porosity of the surface.Drying Time

• Touch Dry: 2–4 hours
  

• Overcoat Time: After 16–24 hours
  

• Full Cure: 5–7 days
  

Storage Precautions

• Store in a cool, dry place
  

• Keep tightly sealed when not in use
  

• Protect from frost and direct sunlight
  

• Shelf life: 12 months (unopened)
  

Surface Preparation

• Surface must be clean, dry, and free of oil, grease, dust, and loose material.
  

• For new concrete: allow a 7-day curing period before application.
  

• For extremely porous surfaces: a second primer coat may be required.