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Unread 02-07-2013, 12:27 PM   #6
See My Etchings.
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Join Date: Feb 2012
Posts: 872
The potential problem with that is that Bondo is rigid while the foam is soft and slightly flexible. So you'll have a hard, brittle skin over a soft core, and the Bondo will be prone to cracking if the foam flexes even a little bit.

Anyway, that's just what I've gleaned from prop forums; I've never actually used Bondo over a foam prop ... for exactly this reason.
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