Advice on pouring liquid latex into a mould made of latex?

Question

I'm trying to make some facial prosthetics from liquid latex but I've run into a bit of a problem. I tried casting a negative in dental alginate, but because of the shape of the model, it didn't work properly, so I've had to make a negative from brushing on liquid latex. The problem is, I want to make a positive using the same latex, and I'm worried that if I just pour it in, it'll stick to itself. Any advice on how to keep them separate? I was thinking something like petroleum jelly, but I'm worried it will damage the latex.

Mike1942f · Accepted Answer

How long do you want to keep it?
I use spray olive oil for cooking and haven't had a lot problems.

Liquidlatexfun · Answer

I don't know your timetable but liquidlatexstore.com sells a finish spray that you spray onto dried liquid latex and it keeps it from sticking to itself. This should work weel for what you need.

? · Answer

my heart as absolutely everyone knows me for my loving character and friendly nature - i'm no longer distinctly nor clever so i assume i dont have the rest.. so they might choose for that left at the back of of me to ring a bell in me.

brian · Answer

i have the same issue and i was thinking along the same lines by using petrolium jelly. i think ill do a test using vaseline and olive oil :)

satterly · Answer

my heart as anybody knows me for my loving character and friendly nature - i'm no longer particularly nor smart so i think i dont have the rest.. so as that they could want that left at the back of of me to take me back to the actuality.

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Advice on pouring liquid latex into a mould made of latex?

5 Answers