Technical document revision

High-Solids Silicone 412

StatusCurrent
Last verifiedSeptember 20, 2026

Revision context

Document record

This one-page product data sheet covers High-Solids Silicone 412, a ready-to-use, high-solids, single-component, moisture-cure silicone coating. The sheet lists it for Ure-A-Sil, Ure-A-Sil Eco, Envir-O-Sil, Max-Ply, Met-A-Sil and Foam-Gard, and the number PDS-121025 is printed at the top.

The sheet describes the coating as the standard specification for liquid-applied silicone used in spray polyurethane foam roofing, single-ply restoration, and top coating of several systems. It lists 92% solids and low VOCs. Installation notes cover mixing without an electric mixer, surface preparation, and application by spray, brush or roller without thinning, with a 40°F minimum application temperature.

The technical data lists 92% plus or minus 2 solids by volume, 250% plus or minus 25% elongation, and 330 plus or minus 50 psi tensile strength. It gives a 290°F COC flash point, a Shore A hardness of 50 plus or minus 5, an initial reflectivity of .87 and initial emissivity of .89. VOCs are under 50 grams per liter, drying time is 1 to 4 hours, shelf life is 24 months, and the service range is -40°F to 350°F. Packaging is 5 and 50 gallon containers, and standard colors are white, gray and tan.

Material changes / notes

Official manufacturer document matched through the system page document filters. Confirm its revision and applicability at source before use.

Applicability

Related products

Current Code: Ure-A-Sil

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Ure-A-Sil roof restoration system combines urethane and silicone technologies to deliver unmatched UV stability, reflectivity, durability, and long-lasting waterproof protection for flat roofs.

Family: Commercial roof coating system

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Current Code: Ure-A-Sil Eco

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Suitable for use over modified bitumen, smooth BUR, EPDM, TPO, PVC, structural concrete, and spray polyurethane foam roof substrates.

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Current Code: Envir-O-Sil

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Envir-O-Sil roof restoration system uses low-VOC, high-solids silicone coatings to deliver superior UV protection, weatherability, and eco-friendly performance on various substrates.

Family: Commercial roof coating system

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Current Code: Met-A-Sil

Met-A-Sil

Met-A-Sil roof restoration system uses high-solids silicone coatings to deliver exceptional UV protection, reflectivity, weatherability, and performance for metal roof restoration.

Family: Commercial roof coating system

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Current Code: Foam-Gard

Foam-Gard

Foam-Gard System is a spray polyurethane foam solution that delivers superior insulation, energy efficiency, and durability for commercial and industrial roof surfaces.

Family: Commercial roof coating system

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Provenance

Archive and verification record

First discovered
September 20, 2026
Last verified
September 20, 2026

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