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GAF HydroStop PremiumCoat Finish Coat, Fabric-Reinforced Acrylic Elastomer Roof Coating, 5 Gallon
Regular price $238.00Orders start at $399 — combine any items to reach the minimum. Learn more
GAF HydroStop PremiumCoat Finish Coat, Fabric-Reinforced Acrylic Elastomer Roof Coating, 5 Gallon
GAF HydroStop PremiumCoat finish coat is the topcoat of a fabric-reinforced acrylic elastomer system for coating, re-covering, and reroofing, supplied in 5-gallon pails. One sell unit is one 5-gallon pail. It works with PremiumCoat foundation coat and PremiumCoat fabric to form a fully adhered, breathable acrylic membrane.
Key Features:
- Acrylic Elastomer: Fabric-reinforced acrylic elastomer system for coating, re-covering, and reroofing.
- Reduces Tear-Offs: Installs over a variety of existing roofs without a complete tear-off, reducing cost and waste.
- Monolithic Membrane: Self-terminating, monolithic application means no seams or complicated flashing details.
- Wide Substrate Range: Adheres to metal, BUR, structural concrete, EPDM, Hypalon, modified bitumen, PVC, and TPO roofs plus parapet and exterior walls.
- Breathable Membrane: Forms a fully adhered, adhesively attached, breathable acrylic membrane.
- Three Color Choices: Available in Charcoal, Dove Gray, and Battleship Gray.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Sell unit | 1 pail, 5 gal |
| Product line | GAF HydroStop PremiumCoat |
| Available colors | Charcoal, Dove Gray, Battleship Gray |
| Available sizes | 5 gal |
| Material | Acrylic elastomer coating |
| System components | PremiumCoat foundation coat, PremiumCoat finish coat, PremiumCoat fabric |
| Intended use | Finish coat for roof coating, re-covering, and reroofing |
Coverage & How Much You Need:
Coverage depends on substrate and application rate; the system is applied with PremiumCoat foundation coat and embedded PremiumCoat fabric, then topcoated with the finish coat. Follow the full HydroStop PremiumCoat system specification for coats per layer.
Fit and Compatibility:
Part of the GAF HydroStop PremiumCoat system and must be used with PremiumCoat foundation coat and PremiumCoat fabric, which are sold separately. Adheres to metal, flat and low-pitched roofs, BUR, structural concrete, EPDM, Hypalon, modified bitumen, PVC, and TPO substrates as well as parapet and exterior walls.
Frequently Asked Questions (FAQ):
Q: What is included in one unit?
A: One 5-gallon pail of PremiumCoat finish coat in Charcoal, Dove Gray, or Battleship Gray.
Q: Can I use the finish coat alone?
A: No, it is designed as part of the HydroStop PremiumCoat system with foundation coat and reinforcing fabric.
Q: Does the roof need a tear-off?
A: No, the system can be installed over many existing roof types without a complete tear-off.
Q: What substrates does it adhere to?
A: Metal, flat and low-pitched roofs, BUR, structural concrete, EPDM, Hypalon, modified bitumen, PVC, TPO, and parapet or exterior walls.
Q: Are there seams to maintain?
A: The cured membrane is monolithic and self-terminating, so there are no seams or complicated flashing details.
Q: Is the membrane breathable?
A: Yes, it forms a fully adhered, adhesively attached, breathable acrylic membrane.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
The PremiumCoat system is a good choice for restoring aging metal, BUR, or single-ply roofs where a tear-off is impractical, since the embedded fabric reinforcement handles movement and the finish coat provides the weathering surface. Apply the foundation coat, roll in the fabric, and topcoat at the specified rate, keeping coats even for uniform film thickness. Choose a lighter gray shade where reflectivity is desired; verify substrate condition and priming needs before starting.
Follow label safety instructions when handling liquid coatings and work with proper roof fall protection.
Restore your roof with GAF HydroStop PremiumCoat finish coat in five available-gallon pails.
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