[simpits-tech] I need to make some parts out of

[Marv De Beque]

You can buy molding rubber for this process.  It is a two-part silicon.  You
need two-part so that it cures.  Regular silicon will not cure if the mold
contains sections that are thicker than a few tenths of an inch.  However,
if the depth of silicon is small, regular hardware brand silicon will work.

Latex will work fine, too.  It is just harder to make the mold because you
must layer it one thin layer at a time.  It is also very fragile compared to
silicon.

Whatever you use, wood, rubber, plaster, or whatever, you need a release
agent applied to the mold to separate part from fixture.

Marv


On 6/18/05 6:30 PM, "Marc Quintin" <marcquintin at hotmail.com> wrote:

> Fiber glass, the parts have a irregular top of a 1/2 boxe kind of shape
> 10''X9''X1'', one side at 2''. So I'm in the process of making a mold but I'm
> not sure what to use, I was thinking of  fiber glass, plaster of paris or
> latex. I would prefer latex but I'm not sure how it will react during the
> curing process of the polyester resin
>  
> Any thoughts on this ?
>  
> Thanks, Marc..
> 
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