Quote Originally Posted by adbuett View Post
Eh, Methyl ethyl ketone isn't any more dangerous than acetone, or isopropyl alcohol. It's probably less hazardous than mineral spirits if I had to guess; petroleum distillates are pretty nasty. MEK, acetone, and isopropyl alcohol are similar in flamability, and exposure hazard. Sure, don't huff it, but I wouldn't huff acetone either. Also, a respirator that is designed for solvents must be used if that's the route you want to take. It must be a respirator, not a dust mask. Either that or a contained breathing apparatus. But really, just don't work in a closet or small room and you'll be okay. Moral: don't be scared, just be careful: ventilation, eye protection, and optionally latex gloves.

Credentials: Masters in Chemistry from Illinois State University (2010), Volatile Organics GC/MS Analyst
I've studied toxicology as part of a Masters of Workplace Health and Safety, which I discontinued when I changed careers. Also I have 18 years experience in industrial personal injury insurance so I have seen plenty of examples of chemical poisoning.

After reading the MSDS and doing some research I would use a respirator when handling MEK (and yes I know that MSDSs are written by professional worrywarts). Then again I may be confusing the appropriate safety standards for handling industrial quantities of MEK and what is appropriate for a hobbyist.

I would counsel against using gloves whilst handling razors. you can easily protect against skin exposure by using the appropriate tools (eg paintbrush and toothpick).