United Coatings Unisil Silicone Flashing

A thick, high-build silicone sealant featuring low odor, an easy application, a fast moisture cure, and enhanced adhesion to a variety of substrates.

Why United Coatings Unisil Silicone Flashing?

  • A high-solids sealant

  • Low odor

  • Brush grade for easy application

  • Fast moisture cure

  • Enhanced adhesion to a variety of substrates


United Coatings Unisil Silicone Flashing was designed to seal abnormal roof penetrations that cannot be covered with standard sprayers or rollers. Apply Unisil Silicone Flashing over SPF, structural concrete, metal, and asphaltic and single-ply membranes only.


United Coatings Unisil Silicone Flashing may be applied by brush or trowel.

Sizes Available

2-gallon (7.6 liter) pail

Colors Available


Physical Properties

Solids by Weight 93% ± 3%
Solids by Volume 95% ± 3%
Weight per gallon 10.6 lb/gal
VOC < 50 g/>L
Tensile Strength 130
Elongation 275
Cure Time 12 – 18 hours
Application Temperature (Air) 40°F (5°C) and rising
Application Temperature (Surface) 40°F – 110°F (5°C – 43°C)


All documents are U.S. English unless otherwise noted

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