djaxon
starting to spend too much on rocks
Member since February 2015
Posts: 159
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Post by djaxon on Nov 14, 2015 17:02:17 GMT -5
Last week I pulled out a box that has been stored for 20+ years. Box was labeled "tumbler stuff" and it was my old Lortone 3# tumbler and several boxes of grit and pellets (never used). In a small plastic container labeled "Sapphire "A" is a very fine white powder and I have no clue what it is. I remember that this was in a small plastic bag and I put it into the container thinking that the bag might not hold up. I have searched "Sapphire A" on-line but can find no results that match a polish/powder for a tumbler. If you have any idea what this powder is please pass it along. thanks much, Don
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Post by Peruano on Nov 14, 2015 17:28:13 GMT -5
I'm pretty sure you are dealing with Linde A, a very hard and expensive polish. Read about it under this name. There is another Linde polish, but not as expensive. Tom
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Post by Starguy on Nov 14, 2015 18:01:55 GMT -5
Sounds like Linde A. Aluminum oxide polish. It's good for just about everything but I've had better luck with tin oxide
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