the compound/abrasive embeds in the softer material and cuts the harder one.
The technique is very old,wooden drill bits have been use to drill holes in bone, shell, horn, and even stone for thousands of years, by loading them with a sand and water slurry.
Common alternatives to lapping compound, suitable for lapping crowns, include those mentioned by Greg,and others such as valve grinding compound,toothpaste,bore polishing compounds and lead removing bore cleaners.
|This message has been edited by classicalgas from IP address 184.108.40.206 on Feb 3, 2011 9:18 AM|
This message has been edited by classicalgas from IP address 220.127.116.11 on Feb 2, 2011 6:32 PM