Gary

Be real careful spraying that stuff! Wear at least a carbon respirator and wear seriously consider a hasmat suit. Epoxy's very easily generate allergic reactions with exposure and spraying it could really be an issue. You have lots or airborne with that. The number of folks who have become allergic to epoxies in 100% scale homebuilding is the reason there are so many partially done builds on the market and now so few epoxy kits marketed any more. It can probably be done safely with appropriate precautions, but just be careful.

bob branch

My flying buddy cannot even sand cured epoxy anymore!  Anywhere the dust gets on him creates a NASTY rash!

   DO NOT do it!!!!
  It will kill you.  If you wanna know the easy way, roll it on
  with a cheap foam roller, a little one. Get the long ones at
  the store and cut to size. Then, use a throwaway foam
  brush and tip it off. A little practice and it comes out like
  glass. Get some throwaway rubber gloves and wear em.
 

  Poxy-  Once you get to much in your system/body, a weird thing
 happens. You get "sensitized" and any further exposer makes you
  really sick.  Like in, having the flu sick, for a week.

  Hey, just be cautious and look out for yourself when you use
 chemical based stuff.     

  Keith

  1 more thing. Rubbing alchohol is 10%  water. Use lac. thinner.

There is an epoxy manufacturers web site, I believe West Systems, that recommends NEVER thinning epoxy due to the reduction in physical properties caused by thinning of the resin.  If a more viscous mix is needed, their recommendation is to lightly heat the mix and applies only to laminating.  Heating although it thins the mix also accelerates the cure.  Nowhere have I seen any recommendations to about spraying it.  I would avoid spraying due to the health problems.

I also have a friend who can no longer handle epoxy due to the skin irriation problem.