DOWSIL™ Construction Primer P (Pint)


A one-part, film-forming primer for use with most DOWSIL™ sealants on porous and cementitious surfaces to promote adhesion. Also suitable for metal substrates, such as polyvinylidene fluoride (PVDF) coating resin painted aluminum, when properly prepared. It is an air drying primer supplied as a solution of reactive materials in solvent. Should not be used with DOWSIL™ 790 Silicone Building Sealant, DOWSIL™ Contractors Concrete Sealant or DOWSIL™ Parking Structure Sealants.

Technical Data Sheet

  • Priming porous substrates such as natural stone, masonry and glass fiber-reinforced concrete
  • Priming metal substrates, painted aluminum, when properly prepared
  • Promotes adhesion of silicone sealants to masonry, stone, concrete and metal surfaces
  • Convenient one-part formulation
  • Film-forming primer resists adhesion degradation due to water immersion
  • Resin will not discolor when exposed to sunlight
Typical Properties
Adhesion to Concrete, Masonry, Metal, Stone
Color Clear
Flash Point, Closed Cup 8 °C
Function Primer
Shelf Life 360 Days
Specific Gravity @ 25°C 0.95
Substrate Porous
UV Tracer No
Volatile Organic Content 748 g/liter
Application Benefits
Resistance Type Water Resistance
Water Resistant true
Processing-Formulating Benefits
Number of Parts One

Additional information

Weight 1.5 lbs
Dimensions 1 × 1 × 1 in