GE Advanced Silicone 2 Windows, Doors, Exteriors 10.1-oz White Silicone Caulk - 71223242

• 100% waterproof and weatherproof; 30-minute rain-ready

• Resists mold with 10-year mold-free product protection

• Excellent adhesion; will not blemish most high-end metal finishes

• Meets ASTM C-920, Class 35

• 40% more flexibility than Class 25 sealants and has 5X stronger adhesion than GE Silicone 1 sealant

• 30-minute rain-ready

• Shrink and crack-proof

• Freeze and sun-proof

• Excellent for protecting areas susceptible to harsh weather including windows, doors, siding, trim, molding, baseboards, vents, basements, attics and around wires and pipes

What our Experts Think

• Maximum Exterior Weather Protection
  100% silicone formula creates a fully waterproof, flexible seal designed for windows, doors, siding, and exterior gaps exposed to harsh weather.
• Fast Rain-Ready Performance
  Begins curing quickly and becomes rain-ready in about 30 minutes, helping protect sealed joints sooner after application.
• Long-Term Mold Resistance
  Provides up to 10-year mold & mildew protection, helping maintain a clean, durable seal in outdoor environments.
• Superior Flexibility vs Standard Caulk
  Engineered with high elasticity and crack resistance, allowing it to move with building expansion and contraction over time.
• Strong Multi-Surface Adhesion
  Bonds securely to wood, vinyl, metal, brick, stone, glass, and masonry, making it highly versatile for exterior sealing jobs.
• Extreme Weather Durability
  Built to resist UV exposure, freeze-thaw cycles, and moisture intrusion, ensuring long-lasting performance outdoors.
• Professional-Grade Exterior Choice
  Widely used for window frames, door perimeters, trim, vents, and siding joints where long-term waterproofing is critical.

Q&A

Q: What is this caulk used for?
A: Sealing exterior gaps around windows, doors, siding, trim, vents, and other building joints to block air and water leaks.

Q: Is it waterproof and weatherproof?
A: Yes, it is 100% waterproof and designed to withstand harsh outdoor weather conditions year-round.

Q: How long before it can get wet?
A: It becomes rain-ready in about 30 minutes after application.

Q: Does it resist mold and mildew?
A: Yes, it offers up to 10-year mold-free protection once cured.

Q: Can it be painted?
A: No, this is a pure silicone formula and is not paintable.

Q: What surfaces does it stick to?
A: It adheres well to glass, wood, metal, vinyl, brick, stucco, masonry, and most common exterior building materials.

Q: Is it flexible after curing?
A: Yes, it stays highly flexible to prevent cracking and maintain long-term seals even with temperature changes.

Q: Why choose GE Advanced Silicone 2 for exterior sealing?
A: It delivers strong adhesion, long-lasting weather resistance, and reliable waterproof protection for critical exterior joints.

Maintenance Tips

• Inspect seals twice a year: Check around windows, doors, and siding for cracks, gaps, or separation after seasonal weather changes.
• Clean gently: Use mild soap and water to remove dirt, dust, and mildew buildup—avoid harsh solvents that can break down silicone.
• Keep joints dry after application: Allow full curing time (about 24 hours) before exposing to rain or heavy moisture for best bond strength.
• Watch for UV and weather wear: Although UV-resistant, long-term sun exposure can gradually affect edges—recheck outdoor seams regularly.
• Avoid painting over silicone: This is a 100% silicone formula and is not paintable; repaint nearby surfaces instead if needed.
• Remove failed sections completely: Do not patch over old or cracked caulk—fully remove and reapply for a durable waterproof seal.
• Maintain stable substrates: Ensure window frames and siding are not shifting, as movement can stress and tear the seal.
• Prevent standing water: Reduce prolonged water exposure on joints to extend lifespan and mold resistance.