10 Best Caulk For Windows of December 2025

• PAINTABLE: Paint-ready in as little as 45 minutes so you can have a beautiful finish in no time
• 100% WATERPROOF AND WEATHERPROOF: Seals and helps protect against water damage and extreme weather conditions
• EXTREMELY DURABLE AND FLEXIBLE: Stretches over 800% and seals up to 3-inch gaps with 35% joint movement, remaining shrink-proof and crack-proof under extreme conditions
• MOLD AND MILDEW RESISTANT: Includes lifetime mold-free product protection making it a great choice for exterior areas susceptible to moisture such as windows, doors, siding and flashing
• EASY APPLICATION, STRONG ADHESION: Guns out effortlessly and tools smoothly onto common building materials, while providing long-lasting performance
• SEE PRODUCT PACKAGING images provided on this product page for complete performance and information

GE Sealants & Adhesives

• Premium window, door, siding and trim sealant
• Blocks drafts and keeps out moisture and pests
• 100% waterproof and weather-proof
• Silicone tough and crack proof
• Superior flexibility and adhesion
• Acrylic latex formulation is durable and permanently flexible
• Paintable to match any surface
• Low VOC content

DAP

• Adhesives & Sealants
• Country of manufacture: United States
• Manufacturer: Dap
• Provides a permanently flexible, crack proof seal that is ideal for sealing out water and air leaks to improve the energy efficiency of a home.
• Also seals out insects from entering through small gaps and cracks.
• Cured sealant is mold and mildew resistant.
• Ideal for a wide variety of applications such as sealing around windows, doors, siding, trim, molding and baseboards.
• Exceeds Federal Specification TT-S-00230C, Type II, Class A and ASTM Specification C 920, Class 25.

DAP

• 100% WEATHERPROOF: Offers excellent protection from water damage, providing a reliable seal in areas prone to weather and water exposure
• 7-YEAR MOLD-FREE PRODUCT PROTECTION: Protects against stain-causing mold and mildew growth
• HYBRID PERFORMANCE: Combines the waterproof performance of a silicone sealant with the paintability of an acrylic latex
• 30-MINUTE PAINT & WATER-READY: Ready for water exposure and paint in as little as 30 minutes to keep projects moving
• SMOOTH & EASY TOOLING: Get beautiful results thanks to smooth application and easy tooling
• BACKED BY A LIFETIME GUARANTEE: Get high-quality results, guaranteed for as long as you own your home
• WET & DRY APPLICATIONS: Seal damp or dry surfaces efficiently
• COMPATIBLE WITH MOST MATERIALS: 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
• See product packaging images provided on this product page for complete performance and warranty information
• LOW ODOR: Neutral-cure formula results in low odor while curing

GE Sealants & Adhesives

• 100% WATERPROOF AND WEATHERPROOF: Seals and helps protect against water damage and extreme weather conditions
• DURABLE AND FLEXIBLE: Stretches over 600% and seals up to 2-inch gaps with 25% expansion, remaining shrink-proof and crack-proof under varying conditions
• PAINTABLE: Paint-ready in as little as 1 hour so you can have a beautiful finish in no time
• MOLD AND MILDEW RESISTANT: Cured sealant is resistant to stain-causing mold and mildew growth, making it a great choice for exterior features such as windows, doors, siding and flashing
• EASY APPLICATION AND EASY CLEAN-UP: Guns out effortlessly, tools smoothly and cleans up easily with soap and water
• SEE PRODUCT PACKAGING images provided on this product page for complete performance and information

GE Sealants & Adhesives

• 100% WEATHERPROOF: This 100% silicone formula offers protection from water damage, providing a reliable seal in areas prone to weather and water exposure
• 7-YEAR MOLD-FREE PRODUCT PROTECTION: Protects against stain-causing mold and mildew growth
• EXCELLENT FLEXIBILITY & STRONG ADHESION: Provides a flexible, durable seal for both exterior and interior projects
• SAME-DAY RAIN-READY: Ready for rain exposure in as little as 12 hours
• FREEZE & SUN-PROOF: Resists freezing temperatures and UV degradation for a permanently flexible seal
• BACKED BY A LIFETIME GUARANTEE: Get high-quality results, guaranteed for as long as you own your home
• NON-PAINTABLE: Designed for applications in which the seal or areas will not be painted
• COMPATIBLE WITH MOST MATERIALS: Adheres to most metals and woods, aluminum, composites, brick, stone, stucco, masonry, cement board, glass, ceramic and porcelain tile, drywall, plaster, vinyl siding, PVC, fiberglass and painted surfaces
• See product packaging images provided on this product page for complete performance and warranty information

GE Sealants & Adhesives

• Incredibly versatile 100% silicone sealant that dries translucent clear
• Best for sealing gaps or cracks between two surfaces; works on window, door, kitchen, bath, gutters, auto, marine and more
• Indoor/outdoor; 100% waterproof
• Won't yellow, shrink or crack
• Mold and mildew resistant

Gorilla

• Incredibly versatile 100% silicone sealant that dries translucent white
• Best for sealing gaps or cracks between two surfaces; works on window, door, kitchen, bath, gutters, auto, marine and more
• Indoor/outdoor; 100% waterproof
• Won't yellow, shrink or crack
• Mold and mildew resistant

Gorilla

• 100% WEATHERPROOF: This 100% silicone formula offers excellent protection from water damage, providing a reliable seal in areas prone to consistent weather and water exposure
• 10-YEAR MOLD-FREE PRODUCT PROTECTION: Protects against stain-causing mold and mildew water damage
• 40% MORE FLEXIBILITY & 5X STRONGER ADHESION: Stays permanently flexible with strong adhesion and provides a durable seal for exterior and interior projects
• 30-MINUTE RAIN-READY: Ready for rain exposure in as little as 30 minutes
• SHRINK & CRACK-PROOF: Withstands extreme expansion or contraction associated with temperature fluctuations
• FREEZE & SUN-PROOF: Resists freezing temperatures and UV degradation for a permanently flexible seal
• WON’T BLEMISH METALS: Will not discolor most high-end metal finishes like chrome, bronze and nickel
• BACKED BY A LIFETIME GUARANTEE: Get high-quality results, guaranteed for as long as you own your home
• NON-PAINTABLE: Designed for applications in which the seal or area will not be painted
• See product packaging images provided on this product page for complete performance and warranty information

GE Sealants & Adhesives

• Item Weight: 0.8 lb
• Country of Origin: China
• Brand name: Thermwell
• Item Dimensions: 4.5"L x 4.5"W x 0.8"H

Thermwell