3 kg (2 x 1.5 kg) phosphoric solve H3PO4 85% to Phospatieren or rust, Free Shipping!
The H3PO4 I mix with water and detergent from Aldi. It should be an acidic detergent, for example one with a basic Zitronensäure.Bei be clumping the surfactants. Careful when mixing. Protect eyes and hands, use goggles and rubber gloves and an empty
