ATP-641 Anti-Scale Coating
Manufactured in the USA this coating is suitable for both oil quenching and air quenching steels in order to minimise the formation of scale and pitting in heat treatment. It has a temperature range of 1000F (537C) to 2400F (1315C). It can either be painted, sprayed or dipped onto the part, allowing the coating to dry before commencing heat treatment. It will upon cooling crumble off and parts can be rinsed clean under water. It is important to ensure that parts are clean of oil and greases before applying the coating.
It is sold in pint (473ml) jars.