P
pjamiwatts
We have new cast iron radiators that were powder coated and the sections joined by the manufacturer. The powder coating is now blistering on the top of the radiator at the virtually all the joins. The manufacturer says this is because the plumber may have twisted the radiators during installation. I don't think he did. Has anyone come across this problem before? I am concerned that the blisters are cause by seepage, will burst, exposing the iron below and lead to corrosion.