Ultra Spec Masonry Int/Ext Acrylic High Build Masonry Primer

  • Excellent surface adhesion to provide for better sealing and acceptance of finish coats
  • Reduces the porosity of masonry surfaces
  • High alkali resistance up to pH 13 or 7 days minimum cure for new concrete
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Designed to penetrate and seal the surface of new or previously painted masonry surfaces providing the proper foundation for subsequent finish coats.

  • Provides a mildew-resistant coating
  • Appropriate for both interior and exterior use
  • May be tinted to light colors with up to 2.0 fl. oz. of Benjamin Moore Gennex® colorants per gallon

Recommended for:

For application to new or previously painted interior/exterior surfaces including: tilt-up concrete construction, stucco surfaces, block construction.

Product Number



Gallon, 5 Gallon

Premixed Colors



Sheen (or Gloss)

Resin Type

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