A Test Method for Corrosion Inhibitors or Cleaners for Flash Rust has been posted on flashrust.org.
Dr. Frenzel prepared this protocol from a Proprietary Inhibitor and Cleaner in a generic form. Specific concentrations should be changed to those of the inhibitor/cleaner under consideration.
This document provides guidelines for testing Proprietary Inhibitor and Cleaner used according to its manufacturer’s instructions. These test guidelines are necessary because applicable ASTM test procedures specifically require that tests be conducted in a manner consistent with the manufacturer’s instructions for use of the product tested. Since the performance of the product is application sensitive, this step by step test procedure should be helpful in the evaluation of its performance in various surface preparation methods.
Panel Preparation
Steel test panels should be used when testing for rust formation. The size of the panels may vary but generally are 3″ x 5″ x 0.25″. Ten panels per coating is generally adequate to test for both salt removal and coating adhesion.
All panels, with the exception of the control panel, should be immersed for 100 hours in an 8-10% weight by weight (w/w) sodium chloride solution to accelerate rust development. The control panel which was not immersed in salt water solution will establish the baseline reading for salts and other contaminants levels.
In addition to the control panel, leave one test panel out of the blast sequence to measure the salt levels deposited after 100 hours of immersion. The other eight panels will be blasted to SSPC-SP10 (NACE 2)(Near White) using the either the water-abrasive blasting method or the dry blast method.
Go to flashrust.org to see the complete test.
October 23, 2019 at 7:00 pm
Dear Sir,
I read your paper “EVALUATION OF 20,000 PSI WATER JETTING FOR SURFACE PREPARATION OF STEEL PRIOR TO COATING OR RECOATING” in 1983, and
I would like to study and know compatibility of coating with corrosion inhibitor, proceeded as long-time project.
If you are possibled to open it, please let me know.//
Thanks,
SH KO
November 11, 2021 at 7:19 pm
There have been long-term studies by various manufacturers on additives to water. I can send a couple of papers which are semi-technical. Mostly what happens is the technical directors of various major coatings manufacturers will still say, “we prefer that there is a little flash rust (new rust formed as the water from the cleaning is evaporation) rather than additives to water as the concentrations might vary. The US Navy included some water additives to its Standard Item 009-032, but still wants to monitor the usage by communications. The reputable additive manufacturers will provide long term data.