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MattN34
MattN34
posted 12 Years Ago
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hi
i have taken on an aluminium casting project for my engineering college project and possibly make a bit of money from it.
my plan is to produce cast aluminium car fuel caps. (like the classic aston ones)
my plan was to use RTV silicone to produce a resin copy of an existing cap i have borrowed and then use that to form sand moulds to cast with.
my reason for making a resin copy is that it will need alteration (hole filling in etc.) before i can make the sand mould.
what i would like to know is
is rtv silicone and casting resin the best way to achieve this
is there anything cheaper than RTV i can use as I'm on a tight budget and have calculated i will need 5 L of RTV to achieve this
any info or advice would be much appreciated
thanks
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brasco
brasco
posted 11 Years Ago
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well epoxy is perfect for casting. it can be drilled and tapped and machined. make SURE you get an epoxy made for this application tho.
casting
and silicone rubber is good for a mold, but you need a way to vac out the air bubbles in it(degassing).
make a mold
i am lucky this company has an outlet and warehouse near me. i love hanging out and talking with teh manager, he is a mountain of good information.
but most all this applies with any product line..
i have a hockey puck sized piece of epoxy and it is solid. no cracks and no softness. they say theirs can be drilled and tapped. and machined.
i think their tutorials are good as well. and a large variety of materials, from hobby to special effects and concrete casting even.
scott
CarbonFiberCreations
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casting project
MattN34
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12 Years Ago
Hi Matt, Well no one else has answered so I will make an attempt althoughI'mno expert. First off...
Pembroke
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12 Years Ago
well epoxy is perfect for casting. it can be drilled and tapped and machined. make SURE you get an...
brasco
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11 Years Ago
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