FP MP 70

Polyurethane primer

Numastec FP MP-70 is a transparent, semi-rigid, deep penetrating, one component polyurethane primer. Solvent based.

Cures by reaction with ground and air moisture.

  • Simple application (roller or airless spray).
  • Excellent anchoring to the surface of absorbing surfaces.
  • Quick curing.
  • Provides enough elasticity to fo llow surface movements.
  • Heat and frost resistant.
  • Stops the creation of dust.
  • Chemical resistant.
  • Maintains its mechanical properties over a temperature span of -20 °С to +90 °С

Numastec FP MP-70 is mainly used as a primer polyurethane floor coatings on absorbent surfaces like:

  • Concrete
  • Cementscreed
  • Wood,etc

QUICK FACTS

Composition Polyurethane pre-polymer. Solvent based.
Adhesion to concrete >2 N/mm²
Hardness(SHORE D Scale) 20
Resistance to water pressure No Leak (1m water column, 24h)
Application temperature 5°С to 35°С
Tack free temperature 3-5 hours
Light trafficking 12-24 hours
Final curing time 7 days

Surface Preparation

Careful surface preparation is essential for optimum finish and durability.

The surface needs to be grinded with a stone- or a diamond-grind'ng machine. The surface needs to be clean, dry and sound, free of any contamination, which may harmfully affect the adhesion of the coating. Maximum moisture content should not exceed 5%. Substrate compressive strength should be at least 25MPa, cohesive bond strength at least 1,5MPa. New concrete structures need to dry for at least 28 days. Oidcoatings, dirt,fats, oils, organic substances and dust need to be removed by a grinding machine. Possible surface irregularities need to be smoothened. Any loose surface pieces and grinding dust need to be thoroughly removed.

WARNING: Do not wash surface with water!

WARNING: Do not use a metal-ball blasting machine to grind the surface, because the heavy metal-ball impacts destroy the cohesion of the concrete surface and lower its stability.