Hardex Valve Grinding Paste No.1 42.5g - HE4251

is a high-performance valve grinding paste that is designed for use in a variety of automotive applications. It is a coarse-grade paste that is made from a mixture of silicone carbide and lithium grease.

This paste is used to grind valves and seats in order to achieve a smooth, even finish. It is also used to remove burrs, surface defects, and corrosion.