C-TEC sealants and CT1 adhesives give you reliable, high-grab bonding and sealing on site. From snagging and refurbs to full rip-outs, these hybrid polymer sealants stick to awkward surfaces, seal joints in wet areas and let you get repairs done fast without coming back to the same job twice.

What Jobs Are C-TEC Sealants Best At?

• CT1 Multi-Purpose Sealing – Seal around baths, showers, sinks, worktops and frames where you need a flexible, long-lasting finish that won’t crack or go mouldy in a hurry.
• Grab Adhesive Fixings – Use high-grab C-TEC construction adhesives to fix skirtings, trims, battens and panels straight to brick, block, plasterboard or tile without relying on mechanical fixings.
• Snagging and Emergency Repairs – Fill cracks, holes and failed joints quickly on refurbs and call-outs so areas are watertight and presentable again in a single visit.
• Mixed Surface Bonding – Bond dissimilar materials like metal to masonry, PVC to timber or composites to tile where standard sealants and adhesives struggle to key properly.
• Wet and Damp Area Sealing – Apply hybrid polymer sealant in bathrooms, kitchens, plant rooms and external details where there’s regular moisture and you still need a strong, reliable seal.

Who Uses C-TEC Sealants?

• Plumbers and bathroom fitters sealing wet areas and sanitary ware
• Carpenters and joiners fixing skirtings, trims, frames and panelling
• General builders and refurb teams working on rip-outs and snagging lists
• Kitchen and bedroom fitters securing units, panels and worktops
• Maintenance engineers handling rapid repairs in occupied properties

Choosing the Right C-TEC Sealant or Adhesive

Substrate and Material Compatibility

Check what you’re bonding or sealing – CT1 sealant is built to stick to most common site surfaces, including brick, concrete, metal, glass, tiles, PVC and timber. For best results, match the product to the main materials on the job and make sure surfaces are clean, solid and free from loose dust and grease.

Grab Strength and Load

For heavier items like panels, trims, skirting or cladding, go for a high-grab C-TEC construction adhesive that will hold weight without sliding. Lighter sealing tasks around sanitary ware and fixtures can use a more standard hybrid polymer sealant where flexibility and finish matter more than sheer holding power.

Internal vs External Use

If the job is outside or exposed to the weather, pick a C-TEC sealant that’s UV stable and fully weather-resistant so it won’t break down in sun, rain or frost. Indoor-only applications can prioritise flexibility and finish, especially in bathrooms and kitchens where you want a clean bead and easy wipe-down.

Cure Time and Overpainting

On fast-turnaround jobs, check the skin-over and full cure times so you know when the area can be used, tiled over or painted. Some C-TEC sealants are paintable once cured – ideal on refurbs where you’re sealing gaps before final decorating.

C-TEC Sealant FAQs