1-Component, Economic Solvent-based Polyurethane Primer & Sealer

VELOSIT PU 412 is an economic, solvent-based, elastic polyurethane primer for polyurethane coatings or as an economic concrete sealer . VELOSIT PU 412 provides excellent adhesion to both non-porous and porous substrates especially in humid areas where moisture is an issue (can be applied on moist concrete surfaces).

Typical applications:

  • Adhesion primer on Concrete and masonry
  • Adhesion primer on steel & glass
  • Sealer for absorptive substrates


  • Economic
  • One component
  • Good paint-over time
  • Excellent elongation (300 %)
  • Excellent penetrating & wetting properties
  • Excellent adhesion
  • Good coverage rate
  • Can be applied on dry or moist surfaces
  • Resistant against water and frost


Here you can find detailed information about the selected VELOSIT product.

Technical Data Sheet Safety Data Sheet

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