New to fiberglassing-Making a fiberglass interior part ?

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New to fiberglassing-Making a fiberglass interior part ?

Post by russosborne on December 29th 2011, 11:07 pm

If anyone is still around, this section seems a little slow. Laughing

I noticed in the other threads here that it seems like everyone is building a wooden form and leaving it as part of the item after glassing. I am looking at doing an overhead console (among other stuff) and am not sure I like the thought of it being that heavy. Is it structurally needed to leave the "frame" intact? This will be used mainly as a switch panel with a light or two and possibly tweeters. No radio or anything that heavy. I am also thinking about modifying an existing overhead console if I can find something close to what I want. Of course I have to decide just what it is I want first. Rolling Eyes

I do like the idea of using cheap material to fiberglass over though. Never would have thought of that myself.

Thanks,
Russ
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Re: New to fiberglassing-Making a fiberglass interior part ?

Post by dean_af on December 31st 2011, 11:12 pm

What about Styrofoam as a base to glass over?
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Re: New to fiberglassing-Making a fiberglass interior part ?

Post by russosborne on January 30th 2012, 9:02 pm

Hmm, could work maybe. Not sure if the styrofoam can handle the chemicals though.
There used to be some stuff similar to that as far as weight and workability that made a big splash in the car mags of the I think 1980's, that came in blocks and you just carved them into the shape you wanted and glassed over it. Don't remember the name and haven't seen it referenced for a long time.
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Russ
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Re: New to fiberglassing-Making a fiberglass interior part ?

Post by superdave on January 30th 2012, 10:24 pm

Make your form out of styrofoam and cover it with aluminum foil. Do your glass work over that and then your form will come out.
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Re: New to fiberglassing-Making a fiberglass interior part ?

Post by dean_af on January 31st 2012, 4:57 pm

Ask a surf shop that makes boards. They use a Styrofoam base and could probably point you in the direction of a manufacturer of the stuff they use.
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Re: New to fiberglassing-Making a fiberglass interior part ?

Post by retired plumber on February 1st 2012, 3:42 pm

Styrofoam comes in several grades. You want a dense grade and then as superdave said, cover it with foil. Ed Roth used plaster of paris and then just painted it with house paint for his buck when he made his neat custom stuff.
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Re: New to fiberglassing-Making a fiberglass interior part ?

Post by HMCFab9 on April 11th 2013, 1:29 am

I think you can use the green Styrofoam that fake plants are put in. They brush a coat of something over it after it's shaped. (varnish maybe) so that the solvents from the 'glass resin don't eat into it. I've also made a cardboard mold / form & glassed over that. Wax your mold & your part will release pretty easily.
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Re: New to fiberglassing-Making a fiberglass interior part ?

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