CT1 Sealant and Construction Adhesive 290ml - Clear | CT1539506

• TRIBRID® Technology - 360% stronger than standard hybrid polymers
• Bonds metals, glass, wood, tiles, concrete, and most plastics
• Apply on wet surfaces or completely underwater
• Tack-free in just 25 minutes
• Odourless, solvent-free, and 100% VOC-free
• UV resistant - suitable for exposed external use
• Dries truly clear - no clouding on visible surfaces
• EC1 Plus, NAAF, ISEGA, and Indoor Air Comfort GOLD® certified
• Replaces silicone, acrylic, butyl, and wood adhesives
• Made in Britain - 290ml recyclable cartridge

CT1 TRIBRID® Sealant and Construction Adhesive - Clear 290ml

One Product, Countless Applications:

CT1 uses TRIBRID® Technology to deliver a sealant and adhesive that replaces wood adhesives, silicone sealants, sanitary sealants, acrylic sealants, and butyl rubber sealants in a single 290ml cartridge. It bonds with all metals including lead, glass, mirrors, all woods, MDF, polystyrene, fibreglass, tiles, concrete, most stones, and most synthetic materials and plastics - excluding PP, PE, and PTFE.

Exceptional Strength and Flexibility:

CT1 is up to 360% stronger than a traditional Hybrid Polymer and offers 250% more flexibility, with a bond strength of 270 N/cm² comparable to an aluminium weld. It expands up to 350% without breaking, making it highly resistant to vibration, movement, and stress. Once cured, it performs reliably from -40°C to +120°C.

Safe, Odourless, and Environmentally Certified:

CT1 is 100% VOC-free, contains no solvents, no isocyanates, and no petrochemicals. It carries EC1 Plus Clear Air Certification, A+ Indoor Air Comfort GOLD® certification, NAAF approval (Norwegian Asthma and Allergy Association), and ISEGA food-preparation certification. It can be painted over with most water-based products once fully cured.

Wet Conditions and Underwater Use:

CT1 can be applied on damp surfaces in wet conditions and will bond even when applied completely underwater - making it suitable for emergency repairs to leaking pipes, gutters, ponds, and marine applications. Tack-free time is just 25 minutes, with a full setting time of 12 to 72 hours depending on conditions.

Shop the full Painting & Decorating range from Heavins.ie, with delivery available across Ireland.

Key Features

TRIBRID® Technology - up to 360% stronger than a traditional Hybrid Polymer.
Universal bonding - bonds metals, glass, mirrors, wood, MDF, polystyrene, fibreglass, tiles, concrete, and most plastics.
Underwater application - bonds on damp surfaces and fully submerged.
Tack-free in 25 minutes - fast initial cure for practical, timely repairs.
Odourless and solvent-free - no VOCs, no isocyanates, no petrochemicals.
UV resistant - suitable for external exposed applications.
Temperature range -40°C to +120°C - copes with extreme weather conditions post-cure.
EC1 Plus and ISEGA certified - safe for use around medically vulnerable persons and in food preparation environments.
Dries truly clear - not cloudy, for a discreet finish on visible surfaces.
Paintable - compatible with most water-based paints once fully cured.
Made in Britain - recyclable 290ml cartridge, applied via standard mastic gun.

Specifications

• Brand: C-Tec
• Product Code: CT1539506
• Volume: 290 ml
• Colour: Clear
• Technology: TRIBRID®
• Tack-Free Time: 25 minutes
• Setting Time: 12-72 hours
• Operating Temperature (post-cure): -40°C to +120°C
• Bond Strength: 270 N/cm²
• Tensile Strength: Up to 360% stronger than traditional Hybrid Polymer
• Flexibility: 250% more flexible than traditional Hybrid Polymer
• VOC Content: 0% (VOC-free)
• Solvents: None
• Isocyanates: None
• UV Resistance: Yes
• Underwater Application: Yes
• Paintable: Yes (water-based paints, once fully cured)
• Certifications: EC1 Plus Clear Air, A+ Indoor Air Comfort GOLD®, NAAF Approved, ISEGA Certified
• Country of Manufacture: Made in Britain
• Weight: 377 g

What's Included in the Box

• 1 x CT1 Sealant & Adhesive Clear 290ml cartridge

We are pleased to offer FREE delivery on orders over €499.00 to anywhere in the Republic of Ireland and Northern Ireland, and our Click & Collect service is FREE on all orders.

All items are shipped from the Athlone Warehouse in Co. Westmeath, Ireland so no import duties apply to the island of Ireland.

Delivery Costs to Republic of Ireland are €6.99 for orders Under €499.00

Same Day Dispatch €9.99
Orders placed before 12pm are dispatched the same working day, helping your items reach you sooner. Excludes bulky items.

Large Bulky Items
Please be aware that large, bulky items (large appliances, white goods, etc.) have a delivery charge of €39.99 for bulky items or €59.99 for extra bulky items to ROI

- We are now delivering to Northern Ireland with all delivery costs equal to the Republic of Ireland.

View our full Delivery & Collection information

Due to our valued customer feedback, we have updated and improved our Returns Policy.

We now offer an exhange or refund on goods purchased online, and returned 14 days after purchase. 

View our Full Returns Policy