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Truth about fiberglass

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I mean that cutting fiberglass can be a bit of a health hazard because the fibers, which are a known carcinogen, are released into the air and can be inhaled. Studies have shown that glass fibers from a stationary piece of rigid fiberboard will not be released into the air in significant numbers, especially when the board is covered in fabric, but you should definitely wear gloves and some type of facemask when cutting 705. I'm pretty sure that a paper mask will be enough, but you should definitely double check me on this before you start.




Direct contact with fiberglass materials or exposure to airborne fiberglass dust may irritate the skin, eyes, nose and throat. Fiberglass can cause itching due to mechanical irritation from the fibers. This is not an allergic reaction to the material. Breathing fibers may irritate the airways resulting in coughing and a scratchy throat. Some people are sensitive to the fibers, while others are not. Fiberglass insulation packages display cancer warning labels. These labels are required by the U.S. Occupational Safety and Health Administration (OSHA) based on determinations made by the International Agency for Research on Cancer (IARC) and the National Toxicology Program (NTP).


1994- NTP listed fiberglass as "reasonably anticipated to be a human carcinogen" based on animal data.


1998- The American Conference of Govern- mental Industrial Hygienists reviewed the available literature and concluded glass wool to be "carcinogenic in experimental animals at a relatively high dose, by route(s) of administra- tion, at site(s), of histologic type(s) or by mechanism(s) that are not considered relevant to worker exposures".


1999- OSHA and the manufacturers volunta- rily agreed on ways to control workplace exposures to avoid irritation. As a result, OSHA has stated that it does not intend to regulate exposure to fiberglass insulation. The voluntary agreement, known as the Health & Safety Partnership Program includes a recom- mended exposure level of 1.0 fiber per cubic centimeter (f/cc) based on an 8-hour workday and provides comprehensive work practices.


2000- The National Academy of Sciences (NAS) reported that epidemiological studies of glass fiber manufacturing workers indicate "glass fibers do not appear to increase the risk of respiratory system cancer". The NAS supported the exposure limit of 1.0 f/cc that has been the industry recommendation since the early 1990s.


2001- The IARC working group revised their previous classification of glass wool being a possible carcinogen. It is currently considered not classifiable as a human carcinogen. Studies done in the past 15 years since the previous report was released, do not provide enough evidence to link this material to any cancer risk.


DONT use it :)

if you do want to use it, plese protect your lungs when handling it, wear a mask but dont be afraid :)


Happy Building

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Wow, how did JohnF30 quote Larrydonline and James before they posted :wacko:


I think there was an issue when we switched the forums from phpBB over to vBulletin... so occasionally on some posts, the order can be mixed up! :P


I'll see what I can do to sort this out!

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