A few things you can do to cut down on reactions. one is don't use acetone to de oil the wood before applying smooth-on. something about epxoy, acetone, and fiberglass, that can mess you up. Use denatured alcohol, made a big difference. If your' going to do this sort of thing alot, get a dust collector, and a cartridge type half face dust mask.
I get nasal reactions to cococolo, bocote, and the rose woods. I won't use ebony if I can help it, ipe is out of the question, yew is toxic not so much alergen but I don't use yew much so that's no problem.
But be sure and protact or airway, eyes, and sensitive parts of you skin. a bad reaction can put an end to things.