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Post by thisislandearth on Aug 6, 2022 14:18:59 GMT -5
After the amazing work that Bob has done with his Ultimate Rotary rock polish comparison test I spent a good 10 to 15 minutes discussing the virtues of tin oxide with my partner. She was blown away and very impressed with regards to the effort, findings and results of the testing. She then said if I plan to spend $30/pound for tin oxide I should also spend some time looking up divorce lawyers. OK...aluminum oxide is great. p.s. please PM me if you need to get rid of tin oxide laying around. p.s.s. - ( for the serious guys ) - yes I KNOW, I KNOW it's worth it.
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Post by Son Of Beach on Aug 6, 2022 14:27:09 GMT -5
Just tell her she gets dibs on whatever rock she wants (polished that is)
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Post by Deleted on Aug 6, 2022 16:55:56 GMT -5
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Post by Deleted on Aug 6, 2022 16:57:58 GMT -5
thisislandearthYou could always recycle the Tin oxide. That might make her ok with it. There are many in here who recycle grit and it works great for them. In Bob’s thread they actually talk about it. HankRocks recycles his TO.
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Post by Son Of Beach on Aug 6, 2022 19:37:00 GMT -5
Better yet, have her sign up for the cult that is......RTH
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Post by Bob on Aug 6, 2022 20:18:34 GMT -5
That's funny!
Just had a 20lb barrel complete first batch tin ox. Shiny, oh yes. But there is something kinda weird about the tin ox shine. Seems that if there is anything not perfect about the rock surface, even just a small place on an otherwise flawless rock, tin seems to emphasis the problem whereas alum ox isn't that way. So far am keeping the tin polished rocks in separate bowls to compare in a few months to bowls done in alum.
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Post by thisislandearth on Aug 6, 2022 21:03:54 GMT -5
That's funny! Just had a 20lb barrel complete first batch tin ox. Shiny, oh yes. But there is something kinda weird about the tin ox shine. Seems that if there is anything not perfect about the rock surface, even just a small place on an otherwise flawless rock, tin seems to emphasis the problem whereas alum ox isn't that way. So far am keeping the tin polished rocks in separate bowls to compare in a few months to bowls done in alum. Oh man, Bob. I wished you didn't say that. ( frown ) I just sold my Mercedes and a Sears Wet Vac to pay for the tin ox I just bought. Just kidding of course. Actually, that's very interesting about the tin ox highlighting the tiniest flaws.
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Post by rmf on Aug 7, 2022 3:29:47 GMT -5
Although I think polishing with Aluminum oxide in a tumbler is fine and that Tin Oxide is too expensive. We are now talking tactics.
Tell her well I wanted to polish with Tin Oxide it is "only $30 per pound". Where as this Aluminum Oxide polish (Linde A at $120 per pound) you want me to use is more expensive.
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Post by Bob on Aug 8, 2022 10:06:02 GMT -5
No way I would use tin ox if I couldn't recycle it due to cost.
Due to having several barrels of tin ox come due last weekend, I now have it dried in the stainless steel oven pan I use for such purposes. The thick slurry was almost 1" thick and there are huge dried pieces of it. Looks like a desert lake bed in Death Valley.
Alum, cer, and chrom ox dried slurry have been very easy in the past to break up into smaller pieces with my fingers, or even crunch a bit inside of a towel with a wooden spoon. Also, they wet very easily and get soft quickly when reused at the bottom of a barrel in a new polish batch.
But not with tin! The pieces are very hard, and they don't break easily, and even after they soak up water in no way would I call them soft. I presume they gradually turn into wet polish again though because I've not noticed any difference in shine between new tin ox and reused.
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