Roff T20 Extrofix Ultra White Tile Adhesive | Premium S1 High-Flexibility Polymer Bedding for Oversized Slabs & External Facades (20 Kg Bag)

Provide an elite, shock-absorbing anchor for massive architectural surfaces with the Roff T20 Extrofix Ultra White Tile Adhesive. Expertly formulated by Pidilite for complex engineering applications, this ultra-premium, highly polymer-modified cementitious compound is designed to withstand exceptional structural stresses, micro-vibrations, and extreme exterior weather changes.

Extra-large format tiles, slim porcelain slabs, and premium natural stones placed on high-rise facades, external walls, and open terraces undergo constant physical stress due to shifting wind loads, structural settling, and thermal expansion. Traditional rigid mortars crack under these forces, leading to dangerous bonding failures. This specialized 20 Kg premium white formulation solves structural liabilities completely by utilizing a highly deformable S1 flexibility framework that safely absorbs underlying substrate shifts while maintaining an intense mechanical and chemical grip.

Key Features & Benefits

• Pristine Pure-White Formula: Provides an optically clean background layer that prevents dark shadow bleeding or discoloration behind translucent glass mosaics, light granites, and white marble slabs.

• Class S1 High-Deformability Framework: Engineered with a flexible, shock-absorbing polymer matrix that moves slightly with the building, effortlessly handling heavy structural vibrations and wind shear.

• Ideal for Extra-Large Format Slabs: Delivers maximum industrial bonding strength, making it the premier choice for anchoring massive vitrified panels and slim porcelain sheets securely on walls and floors.

• Total Weatherproof Performance: Specially modified to repel monsoon rain ingress, freezing cycles, and blistering summer heat without losing its chemical bond integrity over years of exposure.

• Advanced Anti-Slip & Non-Sag Grip: Features a dense initial grab matrix that tightly cinches heavy tile backings, preventing vertical sliding or sagging during challenging wall placements.

• Fully Conforms to IS 15477 Type IV: Certified to comply with strict IS 15477:2019 (Type IV T) and international ISO 13007 C2TES1 criteria, satisfying maximum safety clearances for high-end architectural facade installations.

Technical Specifications

• Brand: Roff (A Pidilite Industries Quality Brand)

• Product Model Series: T20 Extrofix Ultra (White Series)

• Color Tone Formulation: Immaculate White Powder Compound

• Product Weight Packaging: 20 Kg Moisture-Resistant Bag

• Material Base: High-Grade White Portland Cement & Dense Advance Polymer Matrix

• Flexibility Classification: S1 Deformable / Highly Flexible Performance

• Estimated Area Coverage: Approximately 55 to 65 square feet per 20 Kg bag at a standard notched bed thickness of 3 mm (actual yield depends on wall flatness and tile backing profile).

• Application Placement: External Building Facades, High-Rise Cladding, Open Terraces, Large Public Lobbies, Covered Swimming Pools, and Substrates Subject to Vibration.

• Material Compatibility: Oversized Vitrified Slabs, Slim Porcelain Sheets, Light Italian Marbles, Translucent Stones, Glass Mosaics, and Heavy Natural Granite Panels.

Mixing & Application Guidelines

• Water Ratio Mix: Gradually add roughly 1 part water to 3.8 parts powder by weight into a clean mixing container. Blend thoroughly using a slow-speed mechanical stirrer until a uniform, lump-free paste forms (approx. 0.26 parts water to 1 part powder).

• Slaking Phase: Let the wet mix stand and react for 5 minutes, then stir briefly for 60 seconds. Do not attempt to add extra water after this step has passed.

• Application Method: Comb the mixed adhesive layer onto the structurally sound surface using a professional notched trowel. For large format sheets and exterior vertical facade applications, back-buttering the entire back of the tile is mandatory to guarantee a 100% full bed contact area.