Joined: Sat May 22, 2010 2:51 am Posts: 755 Location: South Africa
KRO wrote:
Friends - I am wondering now if I should continue with faceting at all. I have just read an impressive article on International Gem Society about health and safety precautions. It strongly advised using a large, well ventilated space, a tent arrangement over equipment, and so forth, to prevent dangerous inhalation of stone and lap dust. I have only a small room, not very well ventilated at all. I do use a paper nose mask. Further advice?
I think this is alarmist over-kill. Clean your machine and work-area regularly to avoid a build-up of dust that not only may contaminate your polishing laps but blow around the room. I facet in a small room, often with the windows closed. I am 65 and have been faceting since I was 16. My health is excellent. I do use a face mask when cutting with the trim saw because it produces a fine mist of oil droplets.
Joined: Mon Aug 20, 2012 11:32 pm Posts: 1747 Location: Florida, United States
Duncan Miller wrote:
I think this is alarmist over-kill. Clean your machine and work-area regularly to avoid a build-up of dust that not only may contaminate your polishing laps but blow around the room. I facet in a small room, often with the windows closed. I am 65 and have been faceting since I was 16. My health is excellent. I do use a face mask when cutting with the trim saw because it produces a fine mist of oil droplets.
May I suggest a commercially available propylene glycol solution commonly sold as RV pipe antifreeze? Safer and easier to clean up than oil.
Joined: Wed Dec 24, 2014 10:34 am Posts: 20 Location: London, UK
thomas.adamas wrote:
May I suggest a commercially available propylene glycol solution commonly sold as RV pipe antifreeze? Safer and easier to clean up than oil.
Ready-made antifreezes contain 'other' nasties.
Pharmaceutical grade propylene glycol is sold by the litre for about £6 by 'vape' shops and even Amazon; and (so far) deemed safe to breathe in. Add 20% water and off you go... I run 14", 8" and 4" saws on this and will never look back to oil.
Joined: Thu Jan 24, 2008 4:01 pm Posts: 1902 Location: Pine City, NY and Dothan, AL
Prestone brand antifreeze contains nothing but propylene glycol and water, according to the MSDS, which also lists no adverse effects expected from inhalation, but a possible skin irritant.
Joined: Wed Dec 24, 2014 10:34 am Posts: 20 Location: London, UK
AlBalmer wrote:
Prestone brand antifreeze contains nothing but propylene glycol and water, according to the MSDS, which also lists no adverse effects expected from inhalation, but a possible skin irritant.
It must be a different spec from the UK one, then. I guess everybody should read the label for what is locally available... Contents for the UK one in the link below. Some nasties are present... http://www.my-sds.co.uk/Admin/ViewDocum ... ReportId=0
Joined: Mon Aug 20, 2012 11:32 pm Posts: 1747 Location: Florida, United States
Ondzi wrote:
thomas.adamas wrote:
May I suggest a commercially available propylene glycol solution commonly sold as RV pipe antifreeze? Safer and easier to clean up than oil.
Ready-made antifreezes contain 'other' nasties.
Pharmaceutical grade propylene glycol is sold by the litre for about £6 by 'vape' shops and even Amazon; and (so far) deemed safe to breathe in. Add 20% water and off you go... I run 14", 8" and 4" saws on this and will never look back to oil.
In the U.S. 3.9 liters (one imperial gallon) costs about USD6 and is about 65% PG. A small amount of preservative is added, but is reputed to be non-toxic in the added quantity. I have used it in my 6" saw without any issues whatsoever.
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