Laticrete 254 Platinum is a premium, one-step, polymer-fortified thin-set mortar designed for demanding interior and exterior tile installations. Mixed with water only, it delivers exceptional adhesion, extended open time, and smooth workability.
Laticrete 254 Platinum Modified Thin-Set Mortar is the ultimate solution for professional installers who demand maximum performance and versatility. Its advanced polymer-fortified formulation delivers unsurpassed adhesion, flexibility, and durability across a wide range of tile and stone applications.
Designed to mix with water only, 254 Platinum simplifies installation while maintaining exceptional bond strength—even on challenging substrates. With extended open time, antimicrobial protection, and superior performance in exterior and submerged conditions, it is a trusted choice for high-end residential and commercial projects.
Key Features and Benefits
Ultimate Adhesion Performance — Provides industry-leading bond strength for porcelain, glass tile, stone, and large-format installations, including GPTP
Exceeds Industry Standards — Surpasses ANSI A118.4, A118.11, and A118.15 requirements and conforms to ISO 13007-1 classification C2TES2P1
Ideal for Thin Porcelain and Panels — Specifically engineered for thin porcelain tiles and gauged porcelain tile panels/slabs, ensuring secure placement and long-term durability
Antimicrobial Product Protection — Built-in antimicrobial technology helps inhibit the growth of stain- and odor-causing bacteria, mold, and mildew within the substrate
Extended Open Time and Workability — Smooth, creamy formula offers excellent spreadability, longer working time, and precise tile adjustment during installation
Superior for Exterior and Submerged Use — Engineered to perform reliably in exterior environments and submerged applications
Approved Substitute System — Laticrete-approved replacement for 211 Powder mixed with 4237 Latex Additive—simplifying installation without sacrificing performance
Suitable Substrates
Cement Backer Board
Cement Mortar Bed
Cement Plaster
Cement Terrazzo
Concrete and Masonry Surfaces
Concrete Block
Existing Ceramic Tile and Stone
Exterior Glue Plywood (Interior Only)
Gypsum Plaster (Interior, non-wet areas)
Gypsum Wallboard (Interior, non-wet areas)
Hydro Ban Board
Non-Water Soluble Cut-Back Adhesive
Plastic Laminate (Interior Only)
Properly Prepared Vinyl or Other Resilient Tile (Interior Only)
All surfaces should be between 40°F (4°C) and 90°F (32°C) and structurally sound, clean and free of all dirt, oil, grease, paint, concrete sealers or curing compounds. Rough or uneven concrete surfaces should be made smooth with Latex Portland Cement Underlayment to provide a wood float (or better) finish. Dry, dusty concrete slabs or masonry should be dampened and excess water swept off. Installation may be made on a damp surface. Concrete slabs must be plumb and true to within 1/4" (6 mm) in 10 ft (3 m).
Note: 254 Platinum does not require a minimum cure time for concrete slabs. Expansion joints shall be provided through the tile work from all construction or expansion joints in the substrate. Do not cover expansion joints with mortar.
Approximate Coverage:
80–95 ft2 / 50 lb bag (7.4–8.8 m²/22.7 kg bag) with 1/4" x 1/4" (6 mm x 6 mm) notched trowel.
60–70 ft2 / 50 lb bag (5.6–6.5 m²/22.7 kg bag) with 1/4" x 3/8" (6 mm x 9 mm) notched trowel.
35–40 ft2 / 50 lb bag (3.2–3.7 m²/22.7 kg bag) with 1/2" x 1/2" (12 mm x 12 mm) notched trowel.
Coverage will vary depending on trowel notch size, type and size of tile and substrate.
Performance:
Open Time: 40 minutes
Pot Life: 2 hours
Time to Heavy Traffic: 24 hours
Wet Density: 13.8 lb/gal. (1.65 g/cm3)
VOC: 0
Shelf Life: 2 year. High humidity will reduce the shelf life of bagged product.