Auto makers have long used black oxide as an attractive coating for hardware. This economical black semi-gloss finish is often used on latches, hardware, brackets and many other automotive parts. Now you can reproduce the OEM look of black oxide at home! Not a paint or dye, Eastwood's Metal Blackening System provides a true OEM-type coating on any iron or steel part. It's safe and simple! Each piece takes only minutes to transform. The kit contains every thing you need: one pint of blackening concentrate, two pints of sealant, two large dipping containers, gloves, goggles and detailed instructions.