IS 15477:2019 is the Bureau of Indian Standards specification for adhesives used with ceramic, mosaic, and stone tiles - covering the classification, performance requirements, test methods, and marking requirements that tile adhesives must satisfy to be lawfully manufactured and supplied in India.
BIS certification under IS 15477:2019 is mandatory for tile adhesive manufacturers in India. Contractors, project developers, tile manufacturers with integrated adhesive supply, building material retailers, and government infrastructure project procurement agencies specify BIS-certified IS 15477:2019 tile adhesive as a standard procurement and specification requirement.
Key requirements under IS 15477:2019 include:
Classification
IS 15477:2019 classifies tile adhesives by type and performance characteristics — covering cementitious tile adhesives, dispersion tile adhesives, and reaction resin tile adhesives — with performance classes based on tensile adhesion strength, slip resistance, open time, and other defined parameters. The classification system allows specifiers to match adhesive performance class to application requirements — floor, wall, wet area, external facade, heavy stone, and similar uses.
Tensile Adhesion Strength
Minimum tensile bond strength requirements measured after defined curing, water immersion, heat ageing, and freeze-thaw conditioning — the primary structural performance parameter for a tile adhesive. Tensile adhesion strength determines whether the adhesive will hold tiles in place under the mechanical and environmental stresses of the installed application throughout the building's service life.
Open Time
Minimum open time — the working period after adhesive application during which tiles can be pressed into the adhesive bed and achieve full bond. Insufficient open time forces installers to work too quickly, resulting in incomplete tile bedding and reduced bond area.
Slip Resistance
Maximum slip of tiles applied to vertical surfaces before adhesive sets — critical for wall tile installations where gravity acts on the tile before the adhesive cures. Inadequate slip resistance causes tiles to slide down the wall during installation, creating uneven joints and incomplete bedding.
Transverse Deformation
For flexible adhesive classifications — minimum deformation capacity before failure, relevant for adhesives used on substrates subject to movement, vibration, or thermal cycling.
Water Immersion and Heat Ageing Performance
Retention of tensile adhesion strength after sustained water immersion and elevated temperature ageing — defining the adhesive's durability in wet area applications such as bathrooms, kitchens, swimming pools, and external facades exposed to weathering.
Freeze-Thaw Resistance
For external application adhesives — retention of bond strength after defined freeze-thaw cycles simulating outdoor exposure in frost-prone climates.
Marking Requirements
Product name, classification, manufacturer identification, batch number, date of manufacture, shelf life, mixing instructions, IS 15477 reference, and ISI Mark must be clearly and permanently marked on every certified consignment.
Full details on IS 15477:2019 requirements and the BIS certification process are available on our dedicated service page.
Also Read: BIS Certification for Tile Adhesives — IS 15477:2019
