Naked Science Forum

Non Life Sciences => Geology, Palaeontology & Archaeology => Topic started by: eric2011 on 10/03/2020 20:45:44

Title: What homemade release agent prevent POP casting to stick into concrete mold
Post by: eric2011 on 10/03/2020 20:45:44

Hi

What homemade release agent prevent POP casting to stick into concrete mold? What household chemicals can do this task? pop is plaster of paris

Title: Re: What homemade release agent prevent POP casting to stick into concrete mold
Post by: Colin2B on 11/03/2020 08:47:03

I would suggest you seal the porous surface of the cement eg pva glue/sealer and then use thin layer of washing up liquid.

Title: Re: What homemade release agent prevent POP casting to stick into concrete mold
Post by: Petrochemicals on 12/03/2020 01:45:09

Smooth the surface so the pop does not sink deeply into the texture. Make a cement grout for the outer layer. Or use nothing but fine sand in your concrete extremley well smoothed.