Two part pourable foam - what won't stick to it

[marksa1458]

Pouring two part foam under the deck. I would like to use the deck as the "mold" but want to remove the deck to ensure there are no voids. I tried using wax paper but the foam stuck to it like crazy. Is there anything that it won't stick to, Like a Garbage bags or something.

 

[old islander]

Re: Two part pourable foam - what won't stick to it

Lay some painters plastic over your stringers, then lay your decking over that. Pour your foam {cut a small hole in plastic to pour through** You then can lift the deck ply out fairly clean and the plastic, being clear will allow you to see any voids. If you have any you can slit the plastic and fill them.

 

[jigngrub]

Re: Two part pourable foam - what won't stick to it

I'd use a 6mil black plastic coated with Johnsons paste wax:

http://www.amazon.com/dp/B0000DIWIM...vptwo=&hvqmt=b&hvdev=c&ref=pd_sl_5m8h4mt8bp_b

The paste wax is one of the mold releases recommended for pouring molded foam objects like duck decoys and such, you can find this wax at wal-mart and home depot.

 

[marksa1458]

Re: Two part pourable foam - what won't stick to it

Great. Thank you

 

[Trooper82]

Re: Two part pourable foam - what won't stick to it

Yup the plastic works..I posted a vid in my thread doing just as you are talking about. Works real good, once it cures the plastic can be pulled right off.