Roof Types

  • Asphalt
  • Hot Mop
  • Mod Bit
  • EPDM Concrete
  • TPO (needs to be atleast 10 years old)



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Bonding Primer - Roofing Adhesive

1. Product Name

PrimeLock® Bonding Primer

2. EPDM Coatings

P.O Box 3429, Wernersville PA 19609, EPDM Coatings N.E Sales Office, 494 Bridgeport Ave Suite 101, PMB 342 Shelton,CT 06484-4748 URL: www.epdmcoatings.net

3. Product Description

PrimeLock® Bonding Primer is a roofing adhesive for SeamStitch® Roofing Fabric for various roof repair situations. It is also an excellent bonding primer for difficult to adhere substrates.

Basic Uses

Built Up Roofing(BUR),Concrete Roofs, Metal Roofs, Modified Bitumen, Polyurethane Foam, Single Ply Roofing (PVC, TPO).

  • Tenacious adhesion to various surfaces.
  • Excellent primer for aged single ply membranes.
  • Seals asphaltic surfaces with little or no bleed through.
  • Must be topcoated.
  • Easy to use, non-toxic and VOC compliant water based coating.
roofing adhesive

4. Technical Data

See table on the following page.

5. Installation

  • All surfaces to be coated must be clean, dry and free of any oil, grease or dirt.
  • Any existing coating must be checked for good adhesion.
  • Before application, any loosely adhered coating must be removed and bare surfaces must be prepared, cleaned and checked for compatibility.
  • PrimeLock® Bonding Primer is ready to use. Thinning is not recommended.
  • Containers should not be left open for extended periods of time.
  • Follow our and roof restoration procedures and always perform a coating adhesion test before doing the entire roof.
  • Do not leave exposed to elements beyond 48 hours as weathering and dirt pick up may compromise adhesive properties.
  • Spray: Airless Sprayer , 1gpm, 3,000 psi, .017.
  • Brush: Good quality synthetic bristle brush
  • Roller: Short nap roller
  • Clean Up: Water

6. Availability & Cost

PrimeLock® Bonding Primer is available directly from EPDM Coatings and from online distributors. Contact EPDM Coatings for pricing information.

7. Warranty

This product is designed to be topcoated with our elastomeric coatings. A warranty is provided on the entire roof restoration system when installed by an authorized contractor.

8. Maintenance

Periodic maintenance of EPDM Roof Restoration System ensures extended service life and maintains reflectivity.

9. Technical Services

Contact EPDM Coatings for Technical Support. Additional information, product literature, brochures, and specifications are available.

10. Filing Services

Additional product information is available from EPDM Coatings.

This product data sheet conforms to the editorial style prescribed by The Construction Specifications Institute.
The manufacturer is responsible for technical accuracy.

PrimeLock® Bonding Primer Technical Data

Property Value Test Method
Color Gray
Viscosity 4000 ± 500 cps Brookfield
Solids by weight 57% ± 2%
Density 8.3 ± .2 lbs per gallon
Hardness 60 Shore A
Flash Point None
Coverage 0.65 -1.00 gal/100 s.f. as an adhesion promoter.
Up to 1.5 - 2.5 gal/100 s.f. as a fabric adhesive.
Application Temperature 55°F (and rising) - 100°F, Less than 85% relative humidity.
Dry Time Dry to touch in 3 - 6 hours, 24 hours to recoat.
Shelf Life 12 months @ 40°-90°F
Clean Up Water
VOC <100 g/lit

Caution: PrimeLock® Bonding Primer is a water-based product which will freeze and become unusable at temperatures below 32°F. Suspend all application if conditions prevent a complete cure before sunset, rain, fog, dew or freezing temperatures. EPDM Coatings must be completely dry before exposing to water or foot traffic. Keep EPDM Coatings containers covered when not in use. Dispose of all containers in accordance with state and local environmental regulations. Keep away from children. If ingested, DO NOT induce vomiting. Call Physician immediately.

Product information contained herein are presented in good faith and believed to be reliable. They do not constitute part of our terms and conditions of sale. It is also not a guarantee, either expressed or implied, that the data are correct or that products described are merchantable or fit for a particular purpose as methods of use are beyond our control. Customer should determine the suitability of our materials and installation recommendations before usage. Manufacturer's sole responsibilty shall be to replace that portion of any product that proved to be defective.

This product data sheet conforms to the editorial style prescribed by The Construction Specifications Institute.
The manufacturer is responsible for technical accuracy.