February 04, 2012

Ted's fish

My first rubber mould....  quite a process...

Thursday: build up the side
Friday:  continue to build up the side with clay and build up walls, sprout, vents, 1st layer (400 gm) of silicone rubber, 2nd layer (300 gm) of silicon rubber with accelerating thickening agent (a few drops), 3rd layer (400 gm) with thickening agent
Monday:  George suggested to build up two sections more
Tuesday:  Build the plaster shell (Hydrocal + burlap + metal rod) and start on the other side.  We were short of silicone rubber.  This side only approx. 1,000 gm in total (400+400+200).  Learn about Flex wax.  I like the colour of it - white with a tint of blue.
Wednesday:  Do the plaster shell
Thursday:  Demould.....yeh...fish is still ok.  My first rubber mould.









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