VersaProof™ Primer E is a 100% solids, zero VOC, two-component epoxy sealer and primer.  VersaProof™ Primer E is a penetrating primer/sealer that is uniquely formulated to reduce outgassing and improve adhesion.  VersaProof™ Primer E is ideal for damp concrete substrates, or substrates where trapped moisture and/or high moisture drive is expected, such as split slab construction, or with stay-in-place forms.

VersaProof™ Primer E is typically thinned by 50% with acetone and may be applied at temperatures greater than 40°F by airless or air-assisted spraying, brush, roller, or squeegee.  VersaProof™ Primer E may be used with all VersaRoof rapid curing sealants and coatings for interior or exterior application.


  • Improves adhesion
  • Easy, pre-measured kits
  • Excellent reduction in vapor drive and pinholing
  • Designed to be used over damp concrete
  • Proven reduction in Moisture Vapor Emission

Physical Properties

Property Test Method Typical Value
VOC (Undiluted) Theoretical 0 g/l
Solids Content (Undiluted) Theoretical 0%
Pot Life2 Internal 30 minutes
Working Time2 Internal 45 minutes
Adhesion to Concrete1 ASTM D7234 > 200 psi
  1. Concrete prepared in accordance with SSPC-SP13/NACE No. 6
  2. Tested at 77°F