Showing posts with label mould casting. Show all posts
Showing posts with label mould casting. Show all posts

Wednesday, 15 June 2022

Making waxes for the Lost Wax Process

 .... Moulds ready, wax heating up and instructions being given.

Ok!

Here we go....


 The first waxes drying.  Before releasing the moulds they are soaked with cold water (running tap) slowly running over them. This is to make sure the wax has completely solidified as sometimes it is too soft and can be deformed or damaged.

The extra wax is then cut off with a scalpel and snoothed with turps on a scrubby.


Fixing to do
 
Waxes after fixing
Wee bird

Tuesday, 14 June 2022

More Mould Making

 

A few stages further on and each silicone rubber half mould is encased within plaster.

There are keys within it to hold the mould in place.

The silicone took overnight to set but the plaster is much quicker so before long I had 3 mould waiting for wax.





Monday, 13 June 2022

The Week at SSW

 A whole 5 days of learning mould making!

First of all, it was to make sure a silicone release agent was applied liberally to the sculptures - I really wanted the sculptures to come out from the silcone after it had set.

Next, lay on top of cling film to protect the plaster from the clay, and build up around the piece about halfway, following any lines (so that the mould lines when cast show as little as possible)

a clay wall is added and then the silicone poured in.


I'm glad I had 3 pieces as I could practice and repeat the process 3 times to learn it more thoroughly.

Large Beech Leaf