Elcometer 135C Bresle Test Patch

The Elcometer 135C Bresle Test Patch is an advanced, ISO 8502-6-compliant self-adhesive rubber patch designed to determine the concentration of soluble salts on uncoated steel surfaces. Used in conjunction with a suitable conductivity meter, such as the Elcometer 138, it forms a sealed compartment for injecting and extracting a test solution to assess surface cleanliness.

This upgraded version features a thicker foam wall for easier needle insertion, a clear flexible membrane for visual inspection, and an adhesive that leaves no foam residue upon removal—making it ideal for field applications. Each patch is supplied with a Certificate of Cleanliness & Test Area to ensure traceability and quality compliance135C.

The Elcometer 135C is available in boxes of 25 or 100 patches and is also included in Elcometer 138 and 138B Bresle Salt Kits.

Reliable, clean, and compliant—the Elcometer 135C Bresle Test Patch offers the next generation of precision in soluble salt testing. Designed for effortless use and easy removal, it’s the perfect choice for professional surface preparation.

Test Area	1250mm², 12.5cm² (1.93sq inches)
Sample volume	2.6ml ± 0.6ml
Dimensions	50 x 50mm (1.97 x 1.97”)

19% thicker foam walls than traditional patches - easier to insert a needle;
Easy to peel off after test, leaving no foam on the substrate;
Easy to remove clear protective film;
Covers on both sides to protect against dust and contaminants;
Sealed compartment with clear flexible membrane for sampling soluble impurities.

Assessment of soluble salt contamination on uncoated steel.
Pre-coating inspections in shipyards, bridges, offshore, and industrial steel structures.
Used as part of Bresle Method testing in accordance with ISO 8502-6 & 8502-9.
Included in Elcometer 138 and 138B Bresle Salt Kits for complete field solutions.

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