Some people have asked if Envirotex Lite can be used for exterior purposes.
The company says it is NOT RECOMMENDED for exterior applications.
see their instructions page: http://www.eti-usa.com/consum/envtex/envinstr.htm
Now if it’s outside yet protected by a hut roof, you’ll probably be OK. The biggest threat is UV rays
from the sun. (although I have heard of it being used for fishing poles without problems)
For direct sun & rain exposure, see your local hardware store paint department and they will recommend
a good oil based UV protected urethane product.