Carborundum Valve Grinding Paste Coarse Fine | eBay
Made in fine and coarse grades. Coarse for rough grinding, while the fine produces the required lapped or polished seat or surface. Silicone Carbide/Grease Mixed. Grade Fine/Coarse. The fine compound contains grains of 60 micron size or less and the coarse compound is a mix of grain size 106-150 microns. Contents approx 60 grm / Pot.