Jett Basic is a unique, easy-to-use compound formulated from an advanced thermoplastic material. Quick-to-set, non-toxic, biodegradable, it will not stick to, scratch or damage metal parts and can be re-used again and again. Contains no ceramic content so it gives a softer and a slightly pliable feel to it. No special tools required and will not chip or break. Can be re-used again and again.