Primer #171:

Primer #171

For Priming Concrete and Masonry Surfaces prior to applying Urethane Sealants

Primer #171 is a quick-drying primer designed for use on porous surfaces such as concrete, masonry, and wood surfaces prior to the application of Tremco's urethane sealants or coatings.

It is recommended that Primer #171 is used with TremSEAL D and TremSEAL HP.


Primer #171 is a one-part, moisture-cure urethane primer.

Roofing & Weatherproofing Peace of Mind

We deliver peace of mind to building owners and facility managers by managing roofing and building life cycles for customers in all industries, including education, healthcare, government, manufacturing and more.

  • Tremco Roofing offers the industry's most comprehensive roofing and weatherproofing solutions for restoration, repair, maintenance, replacement and new construction.
  • WTI (Weatherproofing Technologies, Inc., a subsidiary of Tremco Incorporated), provides roofing services, construction management and general contracting.
  • Our Canam Building Envelope Specialists affiliate provides building envelope solutions to eliminate air leaks, improve energy efficiency and reduce costs.


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Canada: 1.800.668.9879