Similar International Standards
EN 14891:2017CEN (European Committee for Standardization), Europe
HighCurrent
Liquid-applied water impermeable products for use beneath ceramic tiling bonded with adhesives - Requirements, test methods, evaluation and verification of constancy of performance, classification and marking
Covers cementitious liquid-applied membranes (Type CM) for waterproofing under tiles, a primary use case for IS 15477 products.
AS/NZS 4858:2004Standards Australia / Standards New Zealand, Australia/New Zealand
HighCurrent
Wet area membranes
Specifies performance requirements for membranes used in internal wet areas (bathrooms, laundries), directly aligning with the purpose of IS 15477.
ETAG 022EOTA (European Organisation for Technical Assessment), Europe
MediumWithdrawn
Guideline for European Technical Approval for Watertight Covering Kits for Wet Room Floors and/or Walls
A precursor to EN standards, it established the performance framework for liquid waterproofing in wet areas across Europe.
ASTM C836 / C836M - 18ASTM International, USA
LowCurrent
Standard Specification for High-Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use with Separate Wearing Course
Covers liquid-applied membranes but focuses on different chemistries (e.g., polyurethane, asphalt modified) and applications, not specifically acrylic-cementitious types.
Key Differences
≠The Indian standard requires a significantly higher adhesion strength after water immersion (≥1.0 MPa) compared to European (EN 14891 requires ≥0.5 MPa) and Australian (AS/NZS 4858 requires ≥0.2 MPa) standards.
≠IS 15477 specifies a very high water pressure resistance test (50m head of water), which is more stringent than EN 14891 (15m head). This reflects its potential use in water-retaining structures.
≠European and Australian standards (EN 14891, AS/NZS 4858) have detailed classification systems for crack bridging and low-temperature flexibility, allowing users to select products for specific needs. IS 15477 has a single minimum requirement.
≠IS 15477 is prescriptive in its title, focusing on 'Acrylic based cementitious composite coatings', whereas EN 14891 and AS/NZS 4858 are performance-based and material-agnostic, covering various chemistries.
≠IS 15477 includes a requirement for Rapid Chloride Permeability (RCPT), indicating a focus on concrete protection in corrosive environments, which is not a standard requirement in EN 14891 or AS/NZS 4858.
Key Similarities
≈All standards are product specifications for liquid-applied waterproofing membranes intended for concrete and masonry substrates.
≈They all mandate critical performance tests including water impermeability, tensile adhesion strength (bond strength), and crack bridging capability.
≈The testing methodologies in all standards require specimen conditioning to simulate real-world exposure, such as standard curing, heat ageing, and full water immersion.
≈The fundamental purpose across all standards is to ensure the creation of a seamless, monolithic membrane that prevents water penetration into the substrate.