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CertainTeed SMARTCOAT 450 High Solids Silicone Roof Coating 5 gal Black
Regular price $255.00Orders start at $399 — combine any items to reach the minimum. Learn more
CertainTeed SMARTCOAT 450 High Solids Silicone Roof Coating 5 gal Black
CertainTeed SMARTCOAT 450 is a 100 percent silicone-based, solvent-free, single-part roof coating that forms a vapor-permeable, UV resistant, watertight membrane. The line is offered in White, Light Gray, Dark Gray, Santa Fe Tan, and Black, in 5 and 55 gallon packaging; this item is Black in a 5 gallon pail. It bonds directly over low-sloped roofing, metal, masonry, concrete, and single-ply membranes.
Key Features:
- 100% silicone: A solvent-free, single-part, high solids silicone coating that cures to a weatherproof membrane.
- Ponded water resistance: Exhibits outstanding ponded water resistance for direct bond over low-sloped or flat roofing surfaces.
- Wide substrate bond: Bonds over low-sloped or flat roofing, vertical walls, masonry, granulated BUR/Mod-Bit, granulated APP, concrete, metal, and single-ply membranes.
- Recoat capability: May be used to re-coat existing silicone and existing acrylic roof coatings.
- ASTM compliant: Meets or exceeds ASTM D 7281 and ASTM D 6694.
- Breathable membrane: Creates a membrane that is vapor permeable, adaptive to temperature extremes, UV resistant, watertight, and weatherproof.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | CertainTeed |
| Sell unit | 1 pail, 5 gal |
| Product line | SMARTCOAT 450 |
| Available colors | White, Light Gray, Dark Gray, Santa Fe Tan, Black |
| Available sizes | 5 gal and 55 gal packaging |
| Material | 100 percent silicone-based, solvent-free, single-part roof coating |
| Color / finish | Black (this item) |
| Approvals | Meets or exceeds ASTM D 7281 and ASTM D 6694 |
| Coverage | Refer to published SMARTCOAT specifications for installation guidelines |
| Category | Liquid Applied Systems |
Coverage & How Much You Need:
Coverage rates are not stated in the sources; follow the published SMARTCOAT specifications for spread rates and required mil thickness per coat. Estimate total roof area, subtract penetrations, and size pails accordingly, ordering 5 or 55 gallon packaging to match the job.
Fit and Compatibility:
For direct bonding over low-sloped or flat roofing systems, vertical walls, masonry, granulated BUR/Mod-Bit, granulated APP, concrete, metal, and single-ply membranes, and for recoating existing silicone or acrylic coatings. Surface preparation and reinforcement details should follow published SMARTCOAT specifications.
Frequently Asked Questions (FAQ):
Q: What colors and sizes are available?
A: White, Light Gray, Dark Gray, Santa Fe Tan, and Black, in 5 and 55 gallon packaging; this item is Black in a 5 gallon pail.
Q: What surfaces can it coat?
A: It directly bonds over low-sloped or flat roofing, vertical walls, masonry, granulated BUR/Mod-Bit, granulated APP, concrete, metal, and single-ply membranes.
Q: Can it go over an existing coating?
A: Yes, it may be used to re-coat existing silicone and existing acrylic roof coatings.
Q: Is it single-component?
A: Yes, it is a solvent-free, single-part silicone coating with no mixing required.
Q: How much area does one pail cover?
A: Coverage is not stated here; refer to the published SMARTCOAT specifications for spread rates and mil thickness.
Q: Does it meet any standards?
A: It meets or exceeds ASTM D 7281 and ASTM D 6694.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
SMARTCOAT 450 is well suited to restoring aged low-slope roofs, especially where ponded water is a concern, since silicone tolerates standing water better than many coatings. Clean and prime per the SMARTCOAT spec sheet, detail seams and penetrations first, and choose White on sun-exposed roofs when reflectivity is desired. Confirm substrate compatibility and moisture content before coating.
Apply per the manufacturer's specifications and use appropriate personal protection and ventilation when working with roof coatings.
Restore your low-slope roof with CertainTeed SMARTCOAT 450 High Solids Silicone coating.
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