CT1 is a distinctive Multipurpose, Waterproof adhesive, which made using a Unique Hybrid Polymer, developed by C-TEC. Why have a collection of sealants and adhesives at home or at work, when you can have just one product that will do anything and everything you could possibly need to do? CT1 can help you with nearly every job you need to complete, from sealing baths, sinks windows and showers, to bonding most materials you will ever need to stick. Can be used in damp conditions, and even works under water! Also suitable to be used in salt water conditions, so absoloutely perfect for the Marine industry. And its even over paintable. Supplied in Grey finish.