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Contractor friend has 3 empty barrels on site I can have. They contained 1 of a 2-part spray insulation. Anybody know if these are OK to use. I will burn out and sand, but have reservations. Free is not always best.
Once cleaned, burnt out and sanded they will be fine. I know the ones from the insulation companies here have an epoxy lining. Tough as nails to get out. I'd have it sand blasted. The cost to do my drum and lid inside and out was $25, at a local powder coat shop. I had them powder coat the exterior with high temp powder coat for another $50.