Hey Bradinator, I'm doing the same thing for my friend's helmet, i was wondering if you could answer some questions for me? Ill just refer to the smooth-on as plastic
-Does the plastic leak out of the model?
-How sturdy is it?
-Can it be sanded, detailed?
-Does it crack?
-Does it stick to the pep good?
-Thanks, great build btw!
-The Irish Cowboy