I've read this before, but I've also read that by the time the CA has reacted to your skin, the dangerous portion of it has already been fully absorbed, and only the non-volatile or non-organic compounds remain on your skin.

If I'm working with epoxy I almost always use gloves. However, for those times when I don't and I can't leave what I'm doing and I get epoxy on my hands or arms, I would rather get it off quickly, regardless of the risk of thinning it making it more absorbable. Alcohol thins the epoxy, but is much less efficient at removing it. Mixed epoxy already contains acetone, and acetone is very efficient at removing it.

According to another source, the very best thing for removing epoxy from skin is a specialized dry soap that emulsifies it. If you are really worried about epoxy contact (and you should be), use a barrier cream or gloves.

Supposedly, if you can't use the dry soap, the best thing is to let it cure, then peel it off. That isn't always feasible, especially if time is of the essence, and it is accidental or unexpected contamination.

The info above is my recollection from an article done by a dermatologist who is also a modeler. I could be mistaken, so take it for what it's worth.

I chose the paint system I'm using based on safety. The NELSON Hobby Specialties Paints are much safer than many other paints used in modeling. They contain no free isocyanates.