With a particular focus on concrete and cement materials, Fosroc has been a leading international manufacturer and supplier of high performance chemical products for the construction industry for over 80 years. When it comes to mastic joint sealants, Fosroc have traditionally been known for their 2-part, floor joint products in tins, which we’ve always stocked, but they also manufacture 1-part sealants in cartridges that compliment their main product ranges.