Lapidaryforum.net
Gadgets, Gizmos, and Dohickeys => Fixing, Modifying and Refurbishing your Lapidary Equipment => Topic started by: robirdman on March 01, 2018, 08:20:22 AM
-
This seemed like the closest forum. Years ago when I used to use these steel core drills with a SiC slurry spray, and a Rock Drill, I made jars and holes for rock pipes. One got stuck and I haven't been able to get it out. I thought maybe soaking in HCl would thin the metal but it just leached a lot of pigment from the Tigeriron. Any suggestions or solutions?
-
Is that a 1 inch core drill? Size may have a lot to do with options on removing drill. Also, do you know how deep the drill is into the rock?
-
The core drill looks very rusted, its been in there for how many years? Tiger iron has a high iron content.
And it may rust a little too. You may never get it out without breaking the stone. I guess you want to preserve the stone. I am no expert just my observation.
-
I would get some nylon (like cutting board stuff) with a half round cut into each piece.
Fit the pieces around the stone, clamp it in a vice and connect a drill to it in reverse, then forward.
Slowly....and only use water. LOTS and LOTS of water. That is asbestos you are playing with.
-
I think your best bet is to chalk it up to lesson learned.
-
What is asbestos? I was under the impression that tiger eye and tiger iron no longer have harmful asbestos?
-
https://en.wikipedia.org/wiki/Asbestos
-
I don’t see any mention of tiger eye or tiger iron as an assumed source of harmful asbestos. They do mention serpentine and contamination sometimes found in talc, but no mention of tigerironnor tigereye. My understanding was that the asbestos in tigereye and tiger iron and hawks eye was encapsulated within other fibers or transformed in a way that made those footers less harmful. In looking online, I see very confusing and directly contradictory opinions about this. Is there any literature you’ve seen that directly answers this question?
-
Without doing a bunch of research, I guess that I will go with what I know. Tiger eye/iron is a silicified form of asbestos. As in any silicified rock, there are often areas of the rock that are less silicified and areas that are more silicified. This would leave the chance of exposure to asbestos as one possible outcome.
The silica itself is a good enough reason to use lots of water as silicosis is very unpleasant also. Mesothelioma, the cancer most often associated with asbestos exposure, is a very aggressive cancer but will not make you any more dead than silicosis can.
The takeaway?
Just be safe, use lots of water and if there is any question, use a mask or respirator to minimize the risk. We are supposed to be having fun with all of this.
-
Just a follow up on this...
The better grades of tiger eye/iron are more completely silicated than the lower grades and should not be a significant source of asbestos exposure. Any fibrous areas would not hold up well to being worn and would not polish well. I believe any risk of asbestos exposure would come from low quality material and not be a problem if one chooses better quality material. :dontknow:
-
tiger eye and tiger iron are petrified asbestos.
Use alot of water, some areas didnt petrify as good as others.
Just use more caution than normal when cutting, drilling, grinding and shaping the stone than you would usually use.
My extra precaution is more water.
-
Thank you for the information. I use water ( pixie) and a particulate ( but not asbestos rated) mask now. Maybe I should consider a better mask.
-
Yeah get a better mask. Get one of the 3M 7500 series with the p100(pink filters) or the grey advanced particulate filters. It’s like 20 dollars on amazon. I helped my dad repoint a large stone walk in chimney in a 350 year old log cabin we owned. To conserve heat we did it with the windows closed, that was 15 years ago and I still have a cough and whenever I get sick it takes me 1+ months to recover with lung issues now. It was diagnosed as asma but started immediately when exposed to the stone/concrete dust A single 20$ mask could have saved me from all these issues for life. Keep in mind a SINGLE exposure from a single days worth caused permanent damage. Why risk it? My father who is a medical professional with a doctorate degree thought we were above the law two. Get the correct mask for the job, not one of those junk paper things that don’t work.
-
Thank you for the advice. Yeah, I did get the pink filters and will wear them in future, especially in grinding or carving tiger eye or the like. As for your cough, It might be what you think but it also might be that a 350 year old house is full of mold and fungus and those types of infections recur and are terribly difficult to identify in the first place let alone clear. I speak from experience having suffered at one point through six months without sleep due to an extremely severe convulsive hacking cough, polypoid sinus infections, surgery, advanced antibiotics, antifungals, oral and inhaled steroids, decongestant, antihistamines, antiasthma medicines, etc. and what I found out is that these infections are overlooked by doctor after doctor because they rarely culture out and medications rarely work on them. ONE ten minute deep inhalation of Amphoterecin B mist treatment ( through the nose) got rid of the miserable problem instantly. It WAS very difficult to get approved though. I was supposed to need two weeks of it but after two treatments it was clearly not necessary. All the specialists were sure it was just asthma or just a regular bacterial infection but both of those recurrent problems were caused by the fungus.
-
Talk about scared straight! You guys have very compelling tells of respiratory woe that resonate with me. I am running to Amazon to get a new respirator. My has been hanging out too long too near my saw and a replacement is definitely due.
David.