Rigid Foam Casting Tips

In this tutorial we explain the basics of casting polyurethane foam into a silicone mold and tips for getting good skins and minimal cleanup.
This video explains how to calculate how much foam to use to produce consistent parts and how to generate back pressure to get good skin on your cast foam parts.
Get Rigid Casting Foam here: www.brickintheyard.com/produc...

[@lordronin593]

Thanks for the information, I have cast a lot in PU but not yet in foam, so this is very useful. One general tip that might be of interest: weigh an empty cup and then a cup with the leftover after mixing and pouring, to get an impression of how much is left over. This is a way to get better in mixing the right amount, as sometimes you lose more than you'd expect, but overcompensation is just a waste of material. :)

[@spotoncam3640]

Thanks for sharing.

[@lupusk9productions]

excellent tutorial thank you!

[@user-jl3kb5ih6o]

wow great job

[@jimji2774]

Really nice video thank you.

[@rajkumargiri5789]

How did you made hard pink sides of mold? I think did you used white cement coats? And stain is wooden ?? Plz reply

[@Gatorraider]

I'm getting hard brown plasticy areas in my cast. Any help?

[@michelllerobison843]

Can you cast in a latex mold? What would you use for a release? If you cast in a plastic mold, would you need release?

[@misc328]

How much lifespan does a rigid polyfoam structure have you think? I purchased a display piece that is 30 years old and I’m worried about its longevity, even though it seems fine now

[@SaintAngerFTW]

What is the lifespan of the silicone mold for rigid casting foam?

[@sindrome303]

Could these PU foam heads be turned into metal with green sand casting?

[@Greyboa45]

What product was this mother mold made of? Thanks

[@othername1000]

Are any of your forms closed cell for watercraft?

[@TheRomell24]

will this work on 4 foot statue?

[@shawnmurray7232]

One GLARING error.... 6lb foam is always going to be 6lb foam, it doesn't reduce weight & become 4lb or 5lb foam. I think what you meant to say is through restriction in the mold, it may fill the same volume (not density) as 5lb or 4lb foam.

[@surindergujjar1482]

Could these components be painted? Or may we use any kind of pigment to add in casting process

[@Rob-fn1kp]

Couldn't you just pour water in the mould before hand? and measure? to get your foam requirement?