ASTM C836/C836M is the ASTM standard for a high solids content, cold liquid-applied elastomeric waterproofing membrane for use with a separate wearing course. It helps define the technical expectations for a membrane system intended to provide waterproofing performance before the wearing surface is installed. For purchasers, specifiers, and quality teams, this standard offers a clear reference for evaluating product compliance, supporting consistent material selection, and reducing uncertainty in project documentation and procurement.

Overview of ASTM C836/C836M

This specification addresses a liquid-applied waterproofing membrane that is cold applied and elastomeric, with high solids content as a defining characteristic. In practical terms, ASTM C836/C836M supports the evaluation of membrane materials that are intended to cure into a flexible waterproofing layer beneath a separate wearing course. The standard is useful when comparing products, reviewing submittals, or writing project requirements, because it helps establish a common technical basis for acceptable membrane performance and material description.

Common use cases of ASTM C836/C836M

The standard is commonly used in specification packages for waterproofing systems where a liquid-applied membrane is installed and later protected by a separate wearing surface. It may apply to projects that require a cold-applied elastomeric membrane in assemblies where site conditions favor applied-in-place materials rather than preformed sheets. ASTM C836/C836M is also relevant for procurement and submittal review when teams need a recognized reference for membrane product evaluation and system compatibility.

Benefits of using ASTM C836/C836M

Using ASTM C836/C836M can improve consistency in product selection and help align expectations among manufacturers, specifiers, contractors, and inspectors. The standard supports clearer comparison of membrane products and can reduce ambiguity in quality control and compliance checks. It is especially helpful when waterproofing performance must be documented as part of a broader system that includes a separate wearing course. For technical review, it provides a dependable benchmark for procurement and specification writing.

• High solids, cold liquid-applied membrane focus
• Elastomeric waterproofing system reference
• Intended for use with a separate wearing course
• Useful for submittals and product comparison
• Supports specification and quality control needs