MAPEI has added Mapesil T to its Tile & Stone Installation Systems (TSIS) product line of finishing and care products.

According to the company, this professional-grade, 100% silicone sealant for use on multiple substrates has been specifically formulated for heavy traffic found in residential installations and commercial installations such as malls and other institutional buildings. It is also approved for use in expansion/movement joints, meeting or exceeding ASTM, American National Standards Institute (ANSI) and Tile Council of North America (TCNA) standards.

“Because Mapesil T is a 100% silicone formulation, it meets the Tile Council of North America’s Environmental Classifications Res 1 to 6 and Com 1 to 6 for use in interior and exterior, wet and dry installations,” said David Mowery, MAPEI business manager, TSIS color products and UltraCare. “So it will have wide appeal for a number of applications. Its excellent elongation and flexibility make it ideal for use in both change-of-plane and joint applications in tile or stonework.”

Mapesil T has been formulated to a low sheen to match the gloss of grout joints and is color-matched to MAPEI’s grout color palette.

“We are launching Mapesil T in 25 colors plus a clear formulation, and expect to expand to our complete color palette by mid-2016,” said Mowery.

For more information, visit