I am responsible for painting inspection in a tank farm upgrade project and I could use your help. Our tanks are old and after repairs are done, washing with fresh water is to be done, then sandblasting and painting with a system suitable for marine environment, that is also resistant to various chemicals. I have requested for a bresle test to be done prior to sandblasting (after water washing) and the subcontractor insists that he will do it after sandblasting. This does not seem logical to me, the contamination (if present) will not be cleaned with sandblasting but will be forever in the lodged in the material with sandblasting.
If you have any similar experience I could really appreciate your feedback!