Silicone Brush-Grade 422 is a ready-to use, high solids, single component moisture cured silicone mastic designed for waterproofing penetrations, curbs, seams, and flashings areas.
- Excellent UV protection and reflectivity
- Superior adhesion to silicone coated surfaces
- Low VOC
- Superior protection – forms a durable, rubber-like seal
- 95% Solids – Uses less material for same dry film thickness
Silicone Brush-Grade 422 provides elemental protection for architectural surfaces such as vertical walls, masonry, concrete, metal, single ply roof membranes sprayed-in-place polyurethane foam systems and previously coated silicone areas.
- Modified Bitumen
- EPDM
- Single-ply
- Smooth BUR
- Concrete
- SPF
- 5-gallon pail
- 2-gallon pail
Industry Approvals
Learn more about industry approvals and certifications for American WeatherStar systems and products.
Tools & Equipment
Work smarter, not harder! Find the right tools and application equipment for your next roof coatings project.
Find Your Field Rep
Want to meet with someone in person? Find an American WeatherStar Field Representative in your area!