GE Supreme Silicone Window and Door sealant

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GE Sealants ® Supreme Silicone Window & Door Sealant is a premium 100% silicone sealant designed for reliable, long-lasting weatherproofing. Perfect for contractors, tile installers, and anyone needing durable seals on windows, doors, basements, and siding. It offers excellent adhesion, waterproof protection, and flexibility to withstand extreme weather changes without cracking or shrinking.

Key Features & Benefits

100% Silicone: Provides superior durability and long-lasting sealing performance.
100% Weatherproof: Ideal for exterior projects, it resists water, UV damage, and temperature fluctuations.
Lifetime Mold-Free Protection: Ensures your seal stays clean and free from mold for life.
Meets ASTM C-920, Class 50: Guarantees high-quality, industry-standard joint movement capability.
30-Minute Water-Ready: Can withstand water exposure quickly after application.
Shrink & Crack-Proof: Maintains integrity without breaking down or washing away.
Lifetime Guarantee: Backed by a manufacturer’s lifetime warranty for peace of mind.
Neutral Curing & Low Odor: Safe and easy to work with, causing no damage to high-end metal finishes.
100% More Flexibility: Offers twice the flexibility of Class 25 sealants to handle movement.
Non-Paintable: Designed to maintain appearance and durability without paint.

Specifications

Specification	Details
Sealant Type	100% Silicone
Water-Ready Time	30 minutes
Joint Movement Capability	50%
ASTM Rating	C-920, Class 50
Cure Rate	2-3 mm per 24 hours (at 73°F, 50% RH)
Color	Clear (typical for window & door sealants)
Odor	Low odor, neutral curing

Coverage

Size	Bead Diameter	Approx. Coverage
10.1 fl. oz. Cartridge	3/16” (5 mm)	51 ft. (15.5 m)
10.1 fl. oz. Cartridge	3/8” (9.5 mm)	13.7 ft. (4.2 m)
2.7 fl. oz. Squeeze Tube	3/16” (5 mm)	13 ft. (4 m)
2.7 fl. oz. Squeeze Tube	3/8” (9.5 mm)	3.7 ft. (1.1 m)

Note: For best results, apply in temperatures above 40°F (4°C). Compatibility testing is recommended when sealing over materials like rubber or oily woods.

Lifetime Guarantee: Backed by a lifetime warranty, ensuring your satisfaction and product reliability.

Choose GE Supreme Silicone Window & Door Sealant for a tough, flexible, and waterproof solution that lasts. Order now to protect your projects from harsh weather with confidence.

Frequently Asked Questions

Can this sealant be used outdoors in extreme weather?

Yes, it is designed for exterior use and is 100% weatherproof. It resists water, UV damage, and temperature fluctuations without shrinking or cracking.

How soon after application can the sealant be exposed to water?

The sealant is water-ready in just 30 minutes, making it ideal for time-sensitive installations.

Is this sealant mold-resistant?

Yes, it offers lifetime mold-free protection to keep your sealant clean and maintain performance over time.

Can I paint over this sealant after it cures?

No, this sealant is non-paintable. It is designed to maintain its clear appearance and long-term durability without the need for paint.

What surfaces is this sealant compatible with?

It adheres well to windows, doors, basements, siding, and high-end metal finishes. Compatibility testing is recommended when used on rubber or oily wood surfaces.

What certifications does this sealant meet?

It meets ASTM C-920, Class 50 standards for joint movement and performance.