Making Molds From Plaster Of Paris

Decorating By jjbrink Updated 1 May 2008 , 7:20pm by Petit-four

jjbrink Posted 1 May 2008 , 3:06pm
post #1 of 5

ok, i just bought some plaster of paris to make some sea shell molds. i have the sea shells to push into the plaster. i have never used plaster or made molds before, is there any tips i should know before i start.

i am going to place a layer of sara wrap between the plaster and the fondant when i make my shells for teh cake. just so what goes on the cake will not come into contact with the plaster

4 replies
jjbrink Posted 1 May 2008 , 4:50pm
post #2 of 5

icon_cry.gif ok- i mixed up my plaster of paris, put vaseling on my sea shells and stuck them in the mixture. now how in the world do i get them out??? will they come out easy when the plaster is completly dry or should i try and pry them out while its still a little soft?

Petit-four Posted 1 May 2008 , 5:11pm
post #3 of 5

jjbrink-- I believe plaster molds are often broken after the casting is made. They are often not re-usable, except if the shape is very flat or simple.

Here's a link for a discussion of silicone molds, which are food-safe, flexible, and re-usable.

Sorry, I can't be of more help for the plaster molds. icon_sad.gif

jjbrink Posted 1 May 2008 , 6:15pm
post #4 of 5

petit- the link would not work. do you mind trying to send it again?

Petit-four Posted 1 May 2008 , 7:20pm
post #5 of 5


Here's some general info. on silicone molds:

Here's a neat one -- I love the idea for making coral without using a mold (scroll down to see the photo):

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