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EPDM/TPO Primer is a rubber polymer based roofing primer, and like its name; its been specifically designed for EPDM and TPO surfaces. Unlike thin primers that run and puddle, the high viscosity formulation promotes uniform coverage on both horizontal and vertical surfaces. This Primer does not react with atmospheric moisture allowing it to be opened and resealed for use at a later date.

Basic Use

Primer is used to prime EPDM and TPO roofing membranes to provide improved adhesion for Seam Tape, Liquid Rubber RV Roof Coating and other Liquid Rubber Coatings.

Surface Preparation

All work surfaces should be clean, dry; free of dirt, dust; debris, oils; un-adhered coatings, deteriorated membranes and other contaminants that may result in a surface that is uneven or not sound. If necessary, clean the surface with an approved EPDM or TPO membrane cleaner (ie. acetone) prior to the application of the Primer.


1G/3.78L Can - Approximately 250 sq ft.

14oz Spray Can - Approximately 75 sq ft.


Prior to working with this or any adhesive product; consult product label and Safety Data Sheet (SDS) for necessary health and safety precautions.


  • Do not use as a membrane cleaner.
  • Talc, dust; oil, ice; snow or wet conditions inhibit good adhesion. Clean and dry surfaces are a necessity.
  • Not for use on PVC roof membranes.
  • Do not use on extruded or expanded polystyrene insulation.
  • Install above 10C (50F).

Equipment Clean Up

Use Mineral Spirits or VM&P naptha. Observe all manufacturer’s safety precautions and use recommendations when using solvents.

Storage & Shelf Life

Store material in original unopened containers at temperatures between 40°F - 90°F (4°C - 32°C). Shelf life is 12 months when stored in unopened container.



14 oz Spray Can



14 oz Spray Can

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