Custom fibreglass without a mould (1)

Sometimes it's desireable to create one thing out of fibreglass, without the employment of a mould. This can be often true in automotive audio, wherever you're building one structure, like a dashboard, or a speaker box.

Lots of articles cover building a speakerbox into a stange cove, by fiberglassing into a corner or hole, however what they do not show you the way to try and do, is to create a totally custom object, like a speakerbox with a curving exterior form.

There ar a couple of things to decide up front. First, does one wish to use fibreglass because the primary structural part, is that the fibreglass what {you wish|you would like|you wish} to use to carry the bulk of the strength? does one want to easily use the fibreglass to create bound square measureas that are not possible to create with MDF? Or does one desire a fibreglass "piano finish" as your finish result?

First, some notes on fibreglass. it'll not kind clean right angles, regardless of however onerous you are trying. Second, if you sand down into the particular fibreglass chopped strand mat or artifact, it'll appear as if crap. Third, it's terribly troublesome to figure with over wildly semicircular surfaces.

Now, it is important to have faith in these factors once attempting to create one thing with fibreglass. you would like to have faith in the tip result, not the way to get there. If you would like your structural base to be entirely fibreglass, you have got allready created your call. If you merely wish semicircular lines, then you should not use fibreglass at all. If you would like a piano end, you should not use any fiberglass chopped strand mat.