Where would you look for mineral oil in quantities of around 10-15 gallons? Or... If mineral oil is a better quenching medium that vegy oil, about 20 gallons... Wifey bought herself a rocksaw and needs mineral oil for lubricant. I'm thinking it would be a bit expensive to dump that much unscented baby oil in there.

Look in your local yellow pages under lubricants, industrial. I bought about 15 gallons of quench oil a few years ago which I am still using, it was quite a bit cheaper than buying motor oil. I never priced veggy oil. After a few years I think the Veggy oil may have gone rancid.

Farm stores have mineral oil in gallon containers, check Tractor Supply Company Mineral Oil, 1 gal

Large pet stores usually have it by the gallon... equine/farm supply retailers as well. It's typically about $14.00

I have a 12" and a 24" rock saw and use mineral oil in these. I get the oil at Walmart a little cheaper than anywhere else I have found. I will go in and buy out all they have, typically 8 to 12 quarts. Since they sell it for a laxative, I do get some funny looks.

I have also found that it may be filtered through two brown paper bags one inside the other and it comes out as clear and clean as new. I have two plastic buckets, a five gallon and a seven gallon that fit insude each other. the five gallon has holes drilled in the bottom. the five gallon is placed inside the seven and the two bags placed inside each other and in the bucket. The dirty oil and rock slurry is added to the top and filters through the bag into the bottom.

Where would you look for mineral oil in quantities of around 10-15 gallons? Or... If mineral oil is a better quenching medium that vegy oil, about 20 gallons... Wifey bought herself a rocksaw and needs mineral oil for lubricant. I'm thinking it would be a bit expensive to dump that much unscented baby oil in there.

Mike,
I can get mineral oil from my local NAPA in large quantities. Or try your local airport mechanic.

I have an aversion to mineral oil, when I was a hardhat diver, the compressors ran mineral oil, and after a dive, I would have a big splot of it on the back of my head where the air inlet to my helmet was, the leaky compressor would push it down the air line onto my head, you get the taste of it in your air, and it never seems to go away!

I ran a diamond saw years ago while doing lapidary work and simply used plain old ATF (automatic transmission fluid). Worked fine and never lost a saw blade.

Hmmmmm. Dad used water soluble oil in all his stone work. At least as far as I remember. He had a huge rock collection, sliced, diced, jewelry, spheres, etc. etc. polished and labeled for display. There was a wall full of ribbons from shows too but outside of a few prized pieces nothing much displayed at home.

Huge collection of crystals and natural forms too.

Frosty

Thanks everybody. Didn't realize that it would be at NAPA or the Farm stores. got both, as well as pet supply places.