CRC RTV Acetic Cure Silicone 310ml Fast Curing Weatherproof Glazing Sealant for Builders and DIYers

CRC RTV Acetic Cure Silicone 310ml is a fast-curing, single-component RTV silicone designed for glazing, general sealing and weatherproofing. This acetic-cure formula is engineered for extra bond and increased strength, delivering a durable, permanently flexible seal that stands up to wet environments and challenging NZ conditions.

Why this silicone stands out

• 100% RTV silicone with acetic cure for superior adhesion and a stronger bond on non-porous surfaces
• Fast curing at room temperature for time-efficient projects
• Waterproof sealant that remains permanently flexible, resisting cracking, shrinking and vibrations
• UV resistant to maintain clarity and performance over time
• Contractor-grade formulation designed for reliable, long-lasting results
• Bridges gaps up to 8 mm, ideal for glazing and gasketing needs

Ideal applications

• Glazing applications and gasketing where a strong, flexible seal is required
• General sealing and weatherproofing around bathrooms, kitchens, and exterior joints
• Butt and lap shear joints where extra bond and strength are beneficial
• Showers, baths and basins where a watertight, durable seal is essential

Substrate compatibility

This silicone adheres well to glass, ceramics, brick, aluminium, and most painted surfaces and plastics, enabling a broad range of applications without adhesives or primers. Note: for galvanised (zinc-coated) steel or concrete, use a neutral cure silicone instead.

What you’ll experience in practice

With its acetic cure chemistry, CRC RTV Acetic Cure Silicone provides a robust seal that remains flexible and weatherproof, even in fluctuating temperatures and moisture. It’s an excellent choice when you need a reliable glazing seal, a durable bath or shower enclosure seal, or a general-purpose sealant that resists wear from vibration and movement.

Practical use scenarios

Renovating a bathroom or kitchen? This silicone helps you seal joints around showers and basins with confidence. Installing glass partitions or weatherproofing window frames? Its strong adhesion and UV resistance help maintain a professional finish that lasts. When gaps up to 8 mm need closing, this sealant provides a dependable, flexible seal that stays watertight.