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Johns Manville Asphalt Primer, Black, 5 Gallon Drum
Regular price $96.00Orders start at $399 — combine any items to reach the minimum. Learn more
Johns Manville Asphalt Primer, Black, 5 Gallon Drum
Johns Manville Asphalt Primer is a black asphalt-based primer supplied in a 5-gallon drum. It is used to prepare substrates before the application of cold-applied asphalt products, coatings and cements. One 5-gallon drum is the sell unit; pair it with compatible JM asphalt coatings and mastics.
Key Features:
- Asphalt-based primer: Asphalt primer formulated to prepare surfaces for subsequent asphalt-based applications.
- Substrate preparation: Prepares substrates to improve the performance of applied roof coatings and cements.
- Black color: Supplied in black, the standard color for asphalt primers.
- 5-gallon drum: Drum packaging suited to larger preparation areas and commercial jobs.
- Low-slope roofing use: Positioned with low-slope roofing asphalt membrane products.
- Trusted brand: Manufactured by Johns Manville, a long-established roofing materials producer.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Johns Manville |
| Sell unit | 1 drum, 5 gallons |
| Product line | Johns Manville Asphalt Primer |
| Material | Asphalt primer |
| Color / finish | Black |
| Nominal size | 5 gallons |
| Intended use | Priming substrates prior to application of asphalt-based roof products |
| Application area | Low-slope roofing |
| Pack quantity | 1 |
Coverage & How Much You Need:
Coverage is not stated in the sources; asphalt primers are typically applied at a thin uniform film, so estimate by square footage using the manufacturer's published spread rate.
Fit and Compatibility:
Intended to be used beneath Johns Manville asphalt-based coatings, cements and related low-slope roofing products; verify substrate and product compatibility with the manufacturer's application instructions.
Frequently Asked Questions (FAQ):
Q: What is included with my order?
A: One 5-gallon drum of Johns Manville Asphalt Primer in black.
Q: What does this primer do?
A: It primes and prepares the substrate so subsequent asphalt products, coatings or cements bond properly.
Q: How much area does a 5-gallon drum cover?
A: Coverage is not stated in the available sources; consult the manufacturer's published spread rate for the substrate.
Q: What color is it?
A: Black.
Q: Can it be used on low-slope roofs?
A: Yes, it is categorized with low-slope roofing asphalt membrane products.
Q: How should I apply it?
A: Apply a thin, uniform coat to a clean, dry substrate and allow it to dry before over-applying asphalt products, following the manufacturer's instructions.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Priming is often the step that determines whether cold-applied asphalt products adhere or peel. Use a primer like JM Asphalt Primer on dusty, porous or weathered surfaces before mastics, coatings or membrane work. Stir the drum thoroughly, apply at the specified rate and confirm the primer is dry to the touch before proceeding.
Asphalt primers are solvent-bearing and combustible; keep away from ignition sources, ventilate the work area, and wear gloves and eye protection.
Order the 5-gallon drum of Johns Manville Asphalt Primer to prepare your roof for coatings and cements.
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