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Supreme Silicone Window & Door Sealant

10.1 oz
  • 100% silicone
  • 100% weatherproof
  • Lifetime mold-free product protection
  • Meets ASTM C-920, Class 50
  • 100% more flexibility than Class 25 sealants
  • 7X stronger adhesion
  • 30-minute rain-ready
  • Shrink & crack-proof
  • Resists UV degradation
  • Won’t blemish most high-end metal finishes like chrome, bronze & nickel
  • Lifetime guarantee
  • Neutral curing with low odor
  • Non-paintable

See Product Disclaimers page for important details

Supreme Silicone Window & Door sealant is a premium, 100% silicone and 100% waterproof sealant that provides a reliable seal in weather-prone areas like windows, doors, basements, roofs, sidewalks, siding, tuckpointing and attics. This sealant offers 100% more flexibility than Class 25 sealants and 7X stronger adhesion than Silicone 1® sealant. And, it offers 50% joint movement capability without cracking, shrinking, breaking down or washing away. This sealant has lifetime mold-free product protection that resists stain-causing mold and mildew growth. Backed by a lifetime guarantee.

Adheres to: most metals & woods, aluminum, composites, brick, stone, stucco, masonry, cement board, glass, ceramic & porcelain tile, drywall, plaster, vinyl siding, PVC, fiberglass & painted surfaces

For additional information, see product label.

  1. Remove dirt, grease, moisture, soap residue & old sealant from area to be sealed.  Use backer rod for gaps larger than 1/2″ x 1/2″.
  2. Cut nozzle to obtain desired bead size.
  4. Using caulk gun, apply sealant into gap. Smooth with a gloved finger or “tool” the caulk into gap.
  5. Wipe hands & tools thoroughly before washing.
  6. Allow 30 minutes before exposing sealant to water.

Meets ASTM C-920, Type-S, NS, Class 50, Use A, G & O test requirements
Fed Spec TT-S-00230C; TT-S-001543A

disclosures -needs logic

For products produced by Henkel Corporation, please use the UPC Code. You can click on the corresponding UPC code below to access the SDS.. 

Color UPC Code
White 28756956556
Clear 28756956563
Almond 28756957065
Black 28756957034
Light Gray 28756956990
Brown 28756957010
Supreme Window and Door is available in cartidges and squeeze-tubes.
Supreme Silicone Window & Door Sealant
Image of a silicone sealant tube for all-purpose window and door projects with waterproof and mold-free features.
All Purpose Silicone 1® Sealant
image of ge advanced silicone window & door caulk sizes
Advanced Silicone 2® Window & Door Sealant
Image of GE Paintable Silicone Supreme sealant for windows, doors, and exteriors, waterproof and mold-free.
Paintable Silicone Supreme Window & Door Sealant
Water-ready Time 30-minute24 Hours30-minute30-minute
Water-resistant / Waterproof 100% Waterproof100% Waterproof100% Waterproof
Mold-Free Product Protections Lifetime7-year10-year10-year
Flexibility ••••••••••••
Joint Movement 50%25%35%25%
Durability Guarantee
Low Odor
Will Not Blemish Most High-End Metals
Available in Squeeze Tube

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