Mapesil T is a professional-grade, 100%-silicone sealant for use on multiple substrates. This product is specifically formulated for heavy traffic and expansion/movement joints exceeding both ASTM and ANSI standards. Color-matched to MAPEI’s color palette. Formulated to a low sheen to match the gloss of grout joints. Rated for heavy-traffic and expansion/movement joints. 100% silicone for use in interior, exterior, wet and dry installations from Res 1 to 6 and Com 1 to 6 as detailed per TCNA Environmental Classifications. Excellent elongation and flexibility for use in both change-of-plane and joint applications in tile or stonework. Can be used in pools and spas. Helps to prevent mold and mildew. Interior/exterior residential and commercial installations from Res 1 to 6 and Com 1 to 6 per TCNA Environmental Classifications. As a flexible barrier/filler between horizontal/vertical surfaces and any other changes of plane. Expansion joints in non-traffic, normal-traffic and heavy-traffic areas. Countertops, vanities, sinks, bathtubs, showers, steam rooms, pools, spas, backsplashes and fixtures. Application temperature range is 40°F to 90°F (4°C to 32°C). Mapesil T may stain porous materials. Test a small area for staining or leaching before use to ensure compatibility with such porous materials as natural stone. Mapesil T should not be used in areas where material may come in contact with plasticizers or other materials that will prevent or diminish adhesion. Do not use Mapesil T for structural glazing. Not for use in expansion/movement joints with greater than 25% movement. For joints with depth greater than 1/2" (12 mm), the caulking depth must be controlled by a closed-cell backer rod. Joint widths should not exceed 1" (2,5 cm). Although Mapesil T is color-matched to MAPEI’s grout color palette, expect a slight variation in color due to the difference in composition between materials. Not paintable; painting should be done before installation of Mapesil T.