GE Supreme Silicone Window & Door Caulk | GE Caulk
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GE Supreme Silicone Window & Door Caulk


GE Supreme Silicone Window & Door caulk provides extra flexibility; in fact, it delivers twice the movement capability of other top-selling silicone caulks. Flexibility is important because the caulk on your home can undergo extreme expansion and contraction with harsh weather and temperature fluctuations. Because GE Supreme Silicone Window & Door has +/- 50 percent joint movement, the caulk can move and flex with the joint helping to keep the caulk from tearing or pulling away from the surface. Movement can cause degraded acrylic caulk to crack and crumble over time, leaving gaps for air and water to seep through. Those gaps can lead to water damage, mold growth and higher energy bills.


By developing strength and adhesion quickly, GE Supreme Silicone Window & Door caulk can be exposed to water in just 30 minutes. When using most caulks, the project may have to be delayed or canceled if rain is in the forecast. In fact, some caulk requires up to 24 hours or longer before it can be exposed to water. Otherwise, the caulk may wash away, wasting time and money. A shorter waiting period increases convenience, speed and efficiency.

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  • 100 percent silicone
  • Non-paintable
  • Limited Lifetime guarantee
TYPICAL USES: Windows, doors, siding, trim, molding, baseboards, vents, around wires/pipes and other attic/basement applications

ADHERES TO: Most wood, metal, vinyl siding, masonry, brick, concrete, drywall/plaster, glass and plastic

100% silicone


Unlike most non-silicone caulks (water-based, acrylic, siliconized acrylic and latex), 100% silicone is permanently:
  • Waterproof—non-silicones can break down in water over time.
  • Flexible—non-silicones can become less flexible and can even freeze at low temperatures, making them more likely to crack.
  • Shrink-proof—non-silicones can shrink as the caulk dries, which can cause cracks over time.
  • Crack-proof—non-silicones can harden, crack and crumble over time when exposed to extreme heat and the sun's UV rays.

Colors and Sizes Available  
Colors 10.1 Ounces 2.8 Ounces
Clear M90016-30 N/A
White M90015-30 N/A

MEETS FEDERAL SPECIFICATIONS: TT-S-00230C; TT-S-001543A/ASTM C-920, Type-S, NS, Class 50, use A, G & O test requirements.

30-MINUTE RAIN-READY: Exposure to water possible in as little as 30 minutes with bead size maximum of 3/16", temperature minimum 65° F, and humidity minimum 50 percent. Otherwise, caulk should not be exposed to water for eight hours. Do not touch or clean caulk for 24 hours.

EXTRA FLEX: Meets ASTM Test Method C920 Class 50 with +/- 50 percent movement capability. Other top-selling silicone caulks for consumer applications provide up to +/- 25 percent joint movement (C920 Class 25).

For additional information, including specific terms of the Limited Lifetime Guarantee, see product label.

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Don't Waste Time and Energy

Not all caulk is the same. Because silicone is permanently waterproof, flexible, and shrink-/crack-proof, unlike most non-silicone caulks, it won't leave gaps or cracks for air and water to seep through over time. Those leaks can lead to water damage, mold growth, and higher energy bills—all of which can translate into your lost time (when you have to do the job again), lost energy, and lost money.

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