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ASC 1 Acrylic Elastomeric Roof Base Coat, Gray, 5 Gallon Pail
Regular price $93.10Orders start at $399 — combine any items to reach the minimum. Learn more
ASC 1 Acrylic Elastomeric Roof Base Coat, Gray, 5 Gallon Pail
ASC 1 Base Coat is a gray acrylic elastomeric coating for waterproofing and prolonging roof life, sold as a 5 gallon pail. It adheres to asphalt and metal substrates and can be used as a base coat or a top coat. Pair it with ASC 7 Elastomagic Cement and ASC F Polyester Fabric for repairs before coating.
Key Features:
- Base or top coat: Can be applied as a base coat or as a top coat reinforced with polyester fabric.
- Waterproofing: Flexible, durable acrylic coating for waterproofing and prolonging roof life.
- Substrate adhesion: Adheres to roofing substrates such as asphalt and metal.
- Cool roof benefit: As a reinforced top coat system it significantly reduces roof temperature.
- Roll or spray: Apply with a heavy-duty paint roller or professional spray equipment.
- Low VOC: VOC/VOS 19.2 g/L max (0.16 lbs/gal).
- Two gray colors: Available in CA Gray and Standard Gray.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | ASC |
| Manufacturer model | ASC1BGR5 |
| Sell unit | 1 pail, 5 gal |
| Product type | Acrylic elastomeric roof base coat |
| Chemistry / base | Acrylic copolymer (water-based) |
| Color | CA Gray / Standard Gray |
| Container size | 5 gallon pail (also available in 55 gallon drum and 275 gallon tote) |
| Application method | Roll or spray |
| Coverage rate | 3 gallons per square (11.4 L per 9.3 m2) |
| Dry / cure time | Allow at least 4 hours between coats; 24-48 hours full cure, depending on weather |
| VOC | 19.2 g/L max (0.16 lbs/gal) |
| Application temperature | Apply when temperature is 55°F (13°C) and rising; surface must be dry |
| Compatible substrates | Asphalt and metal roofing substrates |
| Intended use | Roof waterproofing base coat or top coat over polyester fabric |
| Cleanup | Soap and warm water |
| Storage | Do not store below 50°F (10°C) or above 120°F (49°C); do not allow to freeze |
| Approvals and listings | ESR-4192 report referenced (external fire exposure) |
| Manufacturer warranty summary | One-year warranty against manufacturing defects; no labor or installation cost coverage |
| Product weight, complete sell unit | 58 lb |
Coverage & How Much You Need:
Apply at a rate of 3 gallons per square, so one 5 gallon pail covers roughly 1.7 squares (about 165 sq ft) at the stated rate. Allow at least four hours between coats and 24-48 hours for full cure.
Fit and Compatibility:
Designed for the ASC roof coating system: repair holes, leaks and cracks first with ASC 7 Elastomagic Cement and ASC F Polyester Fabric (sold separately) using the Three Course Installation Method, then coat. As a top coat it is reinforced with polyester fabric.
Frequently Asked Questions (FAQ):
Q: What is included in the sell unit?
A: One 5 gallon pail of ASC 1 Base Coat in gray.
Q: How much area does one pail cover?
A: At the specified rate of 3 gallons per square, a 5 gallon pail covers about 1.7 squares (roughly 165 sq ft).
Q: How is it applied?
A: Stir thoroughly, then apply with a heavy-duty paint roller or professional spray equipment to a clean, dry surface when temperatures are 55°F and rising.
Q: Can it be used as a top coat?
A: Yes, it may be used as a base coat or as a top coat reinforced with polyester fabric, in which case the system significantly reduces roof temperature.
Q: What surface preparation is needed?
A: Surfaces must be clean and dry; remove dust, dirt, oil, loose granules and contaminants, clean mildew with bleach solution, and pressure washing is recommended.
Q: When can I apply the next coat?
A: Allow at least four hours between coats and 24-48 hours for full cure, depending on weather and humidity.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Use ASC 1 Base Coat as the waterproofing foundation of an acrylic roof restoration over asphalt or metal, repairing details with ASC 7 cement and polyester fabric first. Apply at 3 gallons per square on a dry surface in the morning while temperatures are rising, and plan coats at least four hours apart. If you want maximum temperature reduction, use it as a base under a reinforced top coat system. Humidity directly affects drying time, so avoid application when rain or heavy dew is expected within 24 hours.
For exterior use only; wear protective clothing and eyewear, ensure adequate ventilation, and do not apply when heavy dew or rain is expected within 24 hours.
Order ASC 1 Base Coat in the 5 gallon pail to waterproof and extend your roof's life.
Product Documents:
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