Mold Making?

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Information and Practical Advice for Advanced Composites - Easy Composites have a butchers here, ive done abit of fibreglass moulding in the past and used the same method at these vids to very impressive results. That might be sufficient for your mould master.

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Hmmm i might try giving ATC a call see if they will deal direct.

[martin54]

I have no idea how easy or difficult it is to expel any air as I have never used silicon for casting but the only place I can really see air getting trapped is the 2 shapes in the rear half of the mold. Small hole drilled in each would allow air to escape, it looks from the drawing to be about the highest point. Would then be easy to trim off the excess once the silicon had cured.

[BedlamRik]

Well at 950x 180x100 mm it wont fit in my vacuum chamber, I'd be tempted to make a mother mould out of fibre glass and pour the RTV into this, making a 1 piece skin mould which you then make a jewellers cut into to release the master. to produce the castings and whilst maiking the glove i'd be tempted to Vacuum bag it.
Its not a process thats easy to explain, in text, and its a pain in the arse if you don't know what your doing.

There are plenty of different methods of achieving the same objective, and many many different opinions on the right way, ( A bit like on here)
But , a quick look on You tube "how to make a mother mould"
Found this, Its not definitive by any means , but it shows the principle.

Mold Making Techniques: Resin Mothermold Process - YouTube

Regards
Rik
If you need any advice drop me a PM