Dura-Seal 24

Dura-Seal 24

Concrete and Masonry Primer/Sealer

The only acrylic bonding masonry primer on the market that adheres to fresh, or green, masonry, with high PH balances, after a 24 hour substrate cure.

  • Adheres to green masonry with pH balances up to 13.5
  • Ideal for sealing and conditioning above grade masonry substrates with weathered, chalky surfaces, as well as green masonry with high pH balances
  • Patented adhesive formula adheres to substrates with unparalled grip.
  • Remains permanently flexible and breathable, expands and contracts as the substrate flexes with seasonal changes in temperature and humidity, ensuraing a paint job that wiill last 2 to 3 times longer than traditional primers.
  • High hiding formula – alkali and efflorescent resistant
  • Use on: concrete, block, stucco, brick, plaster, fiber cement siding, and weathered, chalky substrates where paint has difficulty adhering.


  • Available in gallons, and fives
  • 40% solids by volume
  • 200% elongation
  • 320 sq ft per gallon @ 2 mils dry (5 mils WFT)
  • Interior/Exterior above grade use
  • Apply by brush, roll, or spray
  • Back brush for best results
  • Re-coat time: 1-2 hours
  • Dries white and tacky to the touch
  • 300 + PSI adhesion
  • 100% Acrylic latex formula
  • Soap and water clean-up
  • <48 g/L VOC

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