Zinc plated drum plug is G2 and G3/4 round shape bungs which screw into drum flange, those are equipped with gasket of BUNA, EPDM, PE, Viton or irradiated poly gasket performing well in helium leakage test under different conditions, and provide a standard sealing system for steel drum containers.
Aiming at against corrosion, zinc plated with passivisation in Chrome 3 or Chrome 6 is the most common surface treatment of drum flange and drum plug. Our zinc plating technique enables closures keep non-rust over 96 hours in salt spray test.