Mastic Sealants

Cover every sealing situation with one of the UK's largest ranges of mastic sealants

Known in many other parts of the world as "caulk" or "caulking," the general umbrella term for all sealants in the UK has always been "mastic," which is somewhat dated and gradually being replaced with the more modern "sealant" or a combination of both, "mastic sealant," which we tend to use nowadays as a catchall phrase when referring to all types of sealants.

With almost 50 years of experience in the industry all told, we specialise in mastic sealants with this category making up the core of our entire range. From old skool materials such as acrylic, polyurethane, oil-based ...

Cover every sealing situation with one of the UK's largest ranges of mastic sealants

Known in many other parts of the world as "caulk" or "caulking," the general umbrella term for all sealants in the UK has always been "mastic," which is somewhat dated and gradually being replaced with the more modern "sealant" or a combination of both, "mastic sealant," which we tend to use nowadays as a catchall phrase when referring to all types of sealants.

With almost 50 years of experience in the industry all told, we specialise in mastic sealants with this category making up the core of our entire range. From old skool materials such as acrylic, polyurethane, oil-based and polysulphide to more modern types of joint sealing compounds such as all types of silicone, polymer, hybrid polymer, modified silane and epoxy.

We keep in stock, literally hundreds of mastic sealants in many colours. From staples such as internal bathroom and kitchen silicones, external weather seal sealants and general purpose sealants to more specialist sealants like structural mastic silicone, stain-free, natural stone sealants and newer technology products such as modified polymers that double up as adhesives.

With the technology involved in the production of mastic sealants constantly evolving, here at Sealants Online from County Construction Chemicals Ltd., we work closely with manufacturers such as 3C Sealants, Arbo (Carlisle Group), Dowsil Geocel (Sherwin Williams), Ardex UK, C-Tec CT1, DL Chemicals, Fosroc, Hodgson Sealants, illbruck (Tremco CPG), Mapei, Nullifire, OTTO CHEMIE, and Sika (Formerly Sika Everbuild) to ensure we provide the latest cutting-edge mastic sealants at competitive prices.