I apologize for confusing or frightening you. That was not my intent.
Jeff - Yes, I've read the EPA information you quote. As well as the National Toxicology Program and International Agency for Research on Cancer. Epichlorohydrin is a listed human carcinogen. Diglycidyl ether of Bis-phenol compounds are not. Anyway, that's not the issue I was trying to point out to a fellow novice sculptor.
Most respectfully, I would ask you not to minimize the potential health issues from exposure to Magic-Sculp or most 2 part putties Most contain epichlorohydrin or a bis-phenol compound or some other similar chemical. These are present as resin hardening catalysts (I believe). I think there is a tendency for many to completely disregard the potential risks and not take sensible, reasonable precautions. Reasonable precautions include using rubber gloves to keep putties off your skin. Epichlorohydrin is a 'sensitizer' and it easily enters intact skin. The other chemicals used in 2 part putties may have similar issues. With repeated unprotected exposures they will produce increasingly stronger allergic reactions - that's what 'sensitizer' means. Reasonable precautions also include good general ventilation in your work room.
I use Magic-Sculp and like it as a product. I also use very thin nitrile rubber gloves (sold in Wal-Mart) and a room fan and (whenever possible) an open window. When finished sculpting, I wash up thoroughly. In my case, since I have a tendency toward bronchitis, I also use a respirator with organic vapor cartridges. None of this prevents me from sculpting although I did have to adapt a bit.
Read the Material Safety Data Sheet (MSDS) on Magic-Sculp. It is at
www.sculpt.com or The Compleat Sculptor. Remember there are two MSDSs - one on the resin and one on the hardener. Let me summarize both for you -
Section IV - Both compounds will burn. Avoid open flames and don't smoke when using MS or better yet, just don't smoke at all.
Section V - Avoid getting resin, hardener, or mixed putty in your eyes! Don't rub your eyes with contaminated hands or gloves. If you do get it in your eyes, immediately rinse with water and get medical attention! If you have a tendency toward any type of respiratory illness and/or if breathing becomes difficult, leave the room, wash up thoroughly and if it gets worse, get medical attention! In this section, the manufacturer says that both the resin and hardener are moderate skin sensitizers and can produce sensitization, irritation, and dermatitis on skin. From other sources, I've also read that they may be able to produce respiratory effects or worsen pre-existing respiratory illnesses.
Section VIII - This is the manufacturers recommendations for safe use. The manufacturer recommends using rubber gloves and good ventilation. If you need it, the manufacturer recommends using a respirator with organic vapor cartridges. If anybody on the forum wants to use a respirator, contact me and I'll help you pick one.
Lastly, I am a novice sculptor, but not a novice in the field of safety and health. I've been an ABIH board-certified Industrial Hygienist since 1991 and been working at the professional level in the field since the mid-80s.
All the best,
Dan Morton, CIH