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CertainTeed Roofing SMARTCOAT 450 High Solids Silicone Roof Coating - Light Grey, 5 Gallon Pail
Regular price $255.00Orders start at $399 — combine any items to reach the minimum. Learn more
CertainTeed Roofing SMARTCOAT 450 High Solids Silicone Roof Coating - Light Grey, 5 Gallon Pail
CertainTeed SMARTCOAT 450 High Solids is a 100% silicone-based, solvent-free, single-part roof coating in Light Grey, supplied in a 5 gallon pail. It cures to a vapor-permeable, UV-resistant, watertight membrane for low-sloped and flat roofs, walls and masonry. Pair with published CertainTeed SMARTCOAT primers and specifications for your substrate.
Key Features:
- 100% Silicone: A solvent-free, single-part, 100 percent silicone-based high-solids roof coating.
- Ponded Water Rated: Exhibits outstanding ponded water resistance for direct bond over low-sloped or flat roofing surfaces.
- Wide Substrate Range: Bonds over granulated BUR/Mod-Bit and APP, concrete, masonry, metal, single-ply membranes, vertical walls and more.
- Re-Coat Capable: May be used to re-coat existing silicone and existing acrylic roof coatings.
- Weather-Tight Membrane: Forms a membrane that is vapor permeable, adaptive to temperature extremes, UV resistant and weatherproof.
- Standard Compliant: Meets or exceeds ASTM D6694 and ASTM D7281.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | CertainTeed Roofing |
| Manufacturer model | 412104 |
| Sell unit | 1 pail, 5 gallons |
| Product line | SMARTCOAT 450 High Solids Silicone |
| Color | Light Grey |
| Nominal size | 5 gallon pail |
| Sell unit contents | One 5 gal pail |
| Material | 100% silicone, solvent-free, single-part |
| Coverage per unit | Per published SMARTCOAT specification (varies by substrate; not stated for this item) |
| Applicable standards | Meets or exceeds ASTM D6694; ASTM D7281 |
| Intended use | Low-sloped/flat roofing, walls, masonry, metal and single-ply membranes; re-coating silicone or acrylic coatings |
| Weight | 58 lb per pail |
Fit and Compatibility:
Use over granulated BUR/Mod-Bit, granulated APP, concrete, metal, single-ply membranes, masonry and vertical walls per published SMARTCOAT specifications; it can also re-coat existing silicone or acrylic coatings. Refer to CertainTeed SMARTCOAT installation guidelines for priming and substrate preparation requirements.
Frequently Asked Questions (FAQ):
Q: What is included in the order?
A: One 5 gallon pail of SMARTCOAT 450 High Solids Silicone roof coating in Light Grey.
Q: What substrates can this coating be applied to?
A: It can be directly bonded over low-sloped or flat roofing, vertical walls, masonry, granulated BUR/Mod-Bit, granulated APP, concrete, metal and single-ply membranes, per published SMARTCOAT specifications.
Q: Can it go over an existing roof coating?
A: Yes, SMARTCOAT 450 may be used to re-coat existing silicone and existing acrylic roof coatings.
Q: Is it suitable where water ponds?
A: Yes, it exhibits outstanding ponded water resistance on low-sloped or flat roofing systems.
Q: What standards does it meet?
A: It meets or exceeds ASTM D6694 and is listed as meeting ASTM D7281.
Q: What is the coverage rate?
A: Coverage varies by substrate; refer to the published CertainTeed SMARTCOAT specifications for installation guidelines and rates.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
SMARTCOAT 450 is a go-to restoration coating where ponded water rules out acrylics; its 100% silicone chemistry stays UV stable and vapor permeable. Always verify substrate compatibility, moisture content and priming against CertainTeed's published SMARTCOAT specifications before application, and confirm the existing coating type if re-coating. Light Grey reduces heat load compared with darker grays while matching aesthetic requirements. Apply within the temperature and film-build windows in the spec sheet for a continuous, watertight membrane.
Follow the manufacturer's safety data sheet: work in ventilation, avoid skin and eye contact with uncured silicone, and keep the work area clear on low-slope roofs.
Order CertainTeed SMARTCOAT 450 High Solids Silicone Coating in Light Grey for your next low-slope roof restoration.
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