Lapping compound, where do you get yours?

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Forum topic by Wayne posted 09-25-2011 06:57 PM 4999 views 0 times favorited 7 replies Add to Favorites Watch
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196 posts in 2589 days

09-25-2011 06:57 PM

Topic tags/keywords: question

I haven’t been able to locate any lapping compound locally, so the question(s) are…Where do you guys buy yours? either online, or maybe Im looking in the wrong places (auto parts/hardware stores)? Ive been using sandpaper, so anything I should stay away from with compounds? Im looking for a fairly aggressive grit, 80-100 ish.
Thanks again,

7 replies so far

View tirebob's profile


134 posts in 2850 days

#1 posted 09-25-2011 07:06 PM

View Sawkerf's profile


1730 posts in 3064 days

#2 posted 09-25-2011 07:07 PM

Ask a local machine, or tool and die shop. They should be able to tell you where they get theirs.

-- Adversity doesn't build reveals it.

View Tedstor's profile


1643 posts in 2629 days

#3 posted 09-25-2011 09:18 PM

I use valve grinding compound from the auto parts store.

View Arminius's profile


304 posts in 3799 days

#4 posted 09-25-2011 09:23 PM

I get mine from Lee Valley, unless I have a large order with other items, in which case I have bought from McMaster Carr.

View Wayne's profile


196 posts in 2589 days

#5 posted 09-26-2011 01:56 AM

i do need to find a shop capable of cast iron welding, so while Im there….
Thanks for the advice guys.

lee valley seems to be the most reasonably priced online. Unfortunatly Ive tried the local auto parts places, all i got were funny looks. Ill try phrasing it “valve grinding compound” tomorrow.

View Fuzzy's profile


298 posts in 3984 days

#6 posted 09-26-2011 02:14 AM

WAL-MART and/or ACE … pumice .. rottenstone .. toothpaste .. car polishing compound .. COMET cleanser .. etc

Anything with grit can be used, depending on how fine/coarse you need and how long it will last.

-- - dabbling in sarcasm is foolish … if you’re not proficient at it, you end up looking stupid … ... ...

View WayneC's profile


13754 posts in 4093 days

#7 posted 09-26-2011 05:01 AM

Lee Valley as well. Let us know how the price compares…

-- We must guard our enthusiasm as we would our life - James Krenov

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