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Cast resin plugs

Started by Arthur Brown, Mar 27 2008 08:10 PM

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#1 Arthur Brown

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Posted 27 March 2008 - 08:10 PM

Heard of using polyester resin and sharp sand for press pistons!

Has anyone any guidance to the ratio of sand to resin please?

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#2 pyrotrev

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Posted 27 March 2008 - 08:33 PM

I'd be tempted to use something a little smoother than sand, check out "Mouldmaking and Casting Supplies" shop on aBay. For ultimate strength I would go for finely chopped glass fibre as in glass reinforced nylon, but I guess you might need to get that from a plastics supplier.

Trying to do something very beautiful but very dangerous very safely....