ASTM D5402

Introducing ASTM D5402 – Industrial Physics

ASTM D5402 is an international ASTM test method used to evaluate the solvent resistance of organic coatings using methyl ethyl ketone (MEK) double‑rub testing. This method is widely used across the coatings, automotive, metal finishing, and industrial manufacturing sectors to assess coating cure, durability, and chemical resistance.

The test provides a fast, practical indication of how well a coating withstands solvent exposure — a key factor in quality control and performance validation.

What ASTM D5402 Covers

ASTM D5402 outlines the procedure for determining the MEK resistance of organic coatings by rubbing the surface with a solvent‑soaked cloth under controlled conditions. Key elements of the standard include:

• Performing MEK double‑rub testing to assess coating cure and resistance
• Applying a consistent number of rubs with controlled pressure
• Evaluating coating softening, degradation, or removal
• Reporting results based on visual and tactile assessment
• Following appropriate safety and handling practices for MEK

This method is commonly used in production environments and R&D labs to verify coating performance and ensure compliance with industry specifications.

Why MEK Resistance Matters

Understanding a coating’s MEK resistance is essential for:

• Confirming proper curing of organic coatings
• Ensuring batch‑to‑batch consistency
• Predicting long‑term durability in demanding environments
• Meeting customer and regulatory requirements
• Identifying formulation or process issues early

ASTM D5402 provides a standardized, repeatable way to evaluate coating robustness and solvent resistance.

ASTM D5402 Testing Equipment

Industrial Physics offers specialized tools designed to support accurate and repeatable ASTM D5402 testing.

TQC Sheen MEK Tester Pro Accessory

The TQC Sheen MEK Tester Pro Accessory is engineered to deliver consistent, controlled MEK rub testing in accordance with ASTM D5402. It ensures uniform pressure, stroke length, and solvent application — all critical factors for reliable results.

Typical features include:

• Precision‑controlled rub mechanism
• Adjustable stroke settings
• Stable, ergonomic test arm
• Compatibility with MEK and other solvents
• Repeatable performance ideal for QC environments

This accessory helps reduce operator variability, improving the accuracy and repeatability of your solvent resistance testing.

If you’re unsure whether this accessory fits your coating type or testing workflow, our team can help you select the right configuration.

Your Global Test and Measurement Partner for ASTM D5402

Industrial Physics supports manufacturers, laboratories, and coating specialists worldwide with the tools and expertise needed to meet ASTM D5402 requirements. Whether you’re validating coating cure, optimizing formulations, or ensuring consistent production quality, we provide the equipment and guidance to help you achieve dependable MEK resistance testing.