Urethane expanding foam and PVA as a release?


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20_rc51_00
20_rc51_00
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I'm looking to pour foam into a cavity that has roughly the shape I need. Can I use PVA over the cavity surface so that I can pop the cured urethane out without destroying the cavity surfaces?
Hanaldo
Hanaldo
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Yep, works very well. 
20_rc51_00
20_rc51_00
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Thanks!
TURK
TURK
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Can I just jump in OP ? ....... as what you're doing sounds like what I'm about to do.

Would you use mould release in the mould before the PVA ?







TURK
20_rc51_00
20_rc51_00
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I was just planning on coating the Cavity(mould) with PVA to keep things simple. 
Hanaldo
Hanaldo
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No need to use anything other than PVA. 
TURK
TURK
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Lovely ..... thanks guys  BigGrin



TURK
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