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Techniques for Collectorslapidary noob- removing saw oil?
13th Apr 2011 15:08 UTCGreg Capatch
Just acquired some minerals that are already slabbed- and want to know the best process for removing saw oil from specimens that have had a covering on them for years (no joke- years). Have some small pieces of really high end sugilite that I want to salvage if at all possible. Have them soaking in Dawn dishwashing liquid atm- but it is barely making a dent- this stuff is thick and gooey. Any help on what I can use without ruining the specimens is appreciated.
13th Apr 2011 16:56 UTCDonald Lapham 🌟
13th Apr 2011 17:28 UTCJake Harper Expert
1) Wash thoroughly with Dawn dish soap (You've done that)
2) Place your pieces in kitty litter and cover - leave for 2 or 3 days)
3) "Bake" the pieces in an oven set at 250 degrees F for 4 hours (the temp can be increased with the time decreased, however, this increase in temp may places your stones in danger of fracturing (or exploding) . The oven will have to be placed outside, or in a well ventilated area as this step produces much smoke and fumes from the oil burning off.
I work in a commercial lapidary shop finishing fossil wood specimens and this is the process that we use.
Hope that this helps,
Jake
14th Apr 2011 03:10 UTCGreg Capatch
14th Apr 2011 05:09 UTCJim Bean 🌟
14th Apr 2011 05:13 UTCJake Harper Expert
Jake
14th Apr 2011 13:10 UTCGreg Capatch
1st May 2011 19:25 UTCDon Hixson
This Idea might not help with your heavy oil problem but here is what I do. I go to the dollar store and get a bottle of dish soap any color will do. Some smell better than others. Put a gallon of water in a bucket and the bottle of soap. I drop my slabs from the saw into the bucket and let them soak or until when I drop a slab in and the soap will no longer cover them. Rinse with water and the oil is gone. One bottle of soap will clean about fifty slabs from my 14 inch saw.
Don
2nd May 2011 00:05 UTCDennis Tryon
Dennis
2nd May 2011 01:58 UTCJake Harper Expert
Heat (in my opinion) is the most effective, foolproof tool of all for completely removing saw oil. A porous specimen, or specimen with fine fractures will still hold oils after any amount of soaking and scrubbing. If you are polishing slabs, or face-cut specimens such as agate nodules, any residual oil left behind in those fractures could likely drag across the face of the piece without end -- and at the same time contaminate the pad, lap or wheel you are using.
Jake
2nd May 2011 19:13 UTCGreg Capatch
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