Problem Solving Forum
October 23 - October 27, 2017
What is the best method for removing a day-glo orange spray graffiti from a brick wall?
VCBud Jenkins of CSCS on
October 27, 2017:
Soften it with lacquer thinner unless the VOC regu ...read more Soften it with lacquer thinner unless the VOC regulations do not permit, in which case use a low-VOC remover, then water blast it off using a pressure of not more than 2500 psi, which will keep the bricks from being harmed.
Earl Briggs of Thomas Industrial Coatings on
October 24, 2017:
Use hydrochloride to penetrate, followed by dry so ...read more Use hydrochloride to penetrate, followed by dry soda blast at 30 CFM