Revolutionary CT1 brown sealant with TRIBRID Technology bonds virtually anything underwater. Solvent-free, mould-resistant & A+ certified.
CT1 Brown Building Sealant & Adhesive is a revolutionary product featuring patented TRIBRID Technology, making it 360% stronger than traditional hybrid polymers. This scientifically proven formula offers exceptional colour retention, ensuring white stays white and clear remains clear over time.
Designed for virtually any material, CT1 provides ultimate sealing and bonding solutions. Its unique adhesion properties eliminate the need for additional fixings in most applications. It works equally well in wet or dry conditions – even underwater – making it perfect for marine environments and emergency repairs.
This British-made sealant is packed with benefits:
Perfect for professional trades and DIY projects alike, CT1 excels in structural bonding, marine repairs, wet environments, and high-vibration applications. For mould-prone areas like bathrooms, we recommend BT1 – The Ultimate Bathroom Sealant & Adhesive.
Free standard shipping on U.S. mainland orders. Express shipping options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For defective items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicyWe take the utmost care with your payment and personal details. Our website uses advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookies enhance your shopping experience by keeping track of your cart and remembering you when you return. We also use banner advertising based on your browsing history to show products you might be interested in.
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll ask you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.