Brand: Permatex Manufacturer's Part Number: 80036 Part Type: Valve Lapping Compound Product Line: Permatex Valve Grinding Compound Summit Racing Part Number: PTX-80036 UPC: 686226800367 Volume: 1.50 oz. Quantity: Sold individually. Permatex Valve Grinding Compound Whether you are honing， seating， or grinding， this Permatex valve grinding compound will help you get that burr-free finish. It mixes with water to make an easy to use paste that you can use for your valve work that will aid you in eliminating surface defects， carbon build up， gum and corrosion. This valve grinding compound has applications in lapping and grinding chromium， allowing your parts to get the best prepared surface that you can， while minimizing defects. Rebuild it right with prepped and cleaned surfaces， by making sure your next engine project has this Permatex valve grinding compound on the work bench.