PERMA-CRETE® Interior/Exterior Alkali Resistant Primer

PERMA-CRETE Alkali Resistant Primer, 4-603, is specifically designed for interior and exterior, above grade, wood, plaster, wallboard, and masonry surfaces. This primer provides excellent sealing and stain blocking performance. PERMA-CRETE 4-603 is formulated to seal and protect the topcoat from hot alkali found in plaster, masonry, and cement. It blocks out stains such as, water, smoke, ink, markers, and tannins. This PERMA-CRETE Alkali Resistant Primer is ideal for use on a variety of exterior masonry projects including high-rise apartments and condominiums, tilt-up warehouses, hospitals, schools, concrete parking garage overheads,hotels, resorts and residential homes.

  • Features & Benefits
  • Recommended Uses
  • Sizes & Data Sheets
Features Benefits
Alkali Resistance Can apply to fresh concrete at 7 days and a pH less than 13
Excellent Stain Blocker Blocks water, smoke, ink, markers, & tannins
Application to 35°F (2ºC) Longer painting season
Higher Solids Excellent coverage
Efflorescence Resistance Minimizes white crusty salt deposits
Seals and Prepares Recommended Substrates Prevents moisture damage & prepares the surface for topcoating
Adhesion Minimizes peeling & cracking
Excellent Application Properties Less time for application
Provides a Mildew Resistant Coating Mildew and fungal growth resistance on paint film
UV Resistance Extends new look of painted surface
Fiber Cement
Tilt Up
Concrete Block (CMU)
Gypsum Wallboard-Drywall

U.S. MSDS and Data Sheets

Sheen Product Number Base Size MSDS TDS(En) TDS(Sp)
Non-Flat 4-603 White (Tintable) Gallons, Fives MSDS TDS TDS
  • Conformance Standards
  • USGBC LEED® 2009
  • CAGBC LEED® 2009
  • MPI
  • CARB 2000 SCM
  • OTC
  • US National AIM