By Carl Reed, GPI Laboratories, Inc.; and Kat Coronado and Heather Cui, International Paint, LLC

Previous studies by the authors examined the effect of remedially blasting a previously prepared steel surface that had a profile that exceeded specification, as well as the effect reblasting might have on the corrosion resistance after a coating is applied to a steel surface. This article looks into the effects of remediation of a below-specification blast profile on a steel surface is examined by using test panels that were prepared using steel grit abrasive and coal slag abrasive at below-specification profile, at specification and remediated....