This specification describes the requirements for preparing standard laboratory corroded test panels for use in evaluating coatings in accelerated or fence tests.
Test panels prepared in accordance with this specification are intended primarily for evaluating the performance of coatings that are recommended for use on minimally prepared, minimally contaminated substrates. The test panels are intended to represent the minimally rusted steel surface after being cleaned to SSPC-SP 2 (Hand Tool Cleaning).
Test panels prepared in accordance with this specification should not be used for evaluating the performance of coatings recommended for use over marine and industrial contaminated rusted steel.
This is a method for preparing standard corroded test panels. The method is both rapid and reproducible. Steel panels are initially prepared in accordance with SSPCSP 10 (Near White Metal Blast Cleaning) and then exposed in a cyclic wet/dry cabinet. This produces dense uniform corrosion products. The method employs deionized water and is not intended to deposit soluble ionic species on the substrates.
