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The mkiv Supra Owners Club

Best way to reinforce fibreglass bodykit?


Whitesupraboy2

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What the title says really, I dont want to do loads and loads of layers, I just would like to reinforce the fibreglass as its quite flexable and im sure thats why I have some cracks in the paint from it flexing at speed.

 

What is best way to do this, is there a certain type of matting and resin i should use?

 

Does the old technique of strips of would in the fibreglass really work?

 

I'll be doing this from behind the fibreglass so creating bit of a mess isnt a problem as it wont be seen.

 

If anyone has any good links or has done it before, please feel free to comment.

 

thanks

WSB2

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Panel 'stiffeners' on a grp panel are usually grp structural stiffeners overlaminated over a former. Its the actual grp overlaminated over a former that gives the panel stiffness, as long as the former has some depth and width to it.

Whilst the 'former' material will add some stiffness, its more common to consider the grp overlaminate as the actual structural element.

Formers can be made of almost anything. Wood, metal, rope, foam etc etc.

Smaller mouldings / panels can stiffened with just timber, bonded to the panel skin, but on curved surfaces like on a car body, foam formers are probably easier to bend to the panel shape. Sounds daft but foam pipe insulation cut in half to form a c section is a good former on smaller panels, weak in itself, but bloody stiff when overlaminated and bonded to the panel. The foam former could be temporarily fixed to the panel with gobs of body filler before you overlaminate.

Bonding new laminate to older dirty laminate...theres no substitute for cleaning the area, grinding back the surface to be bonded to, then cleaning again with acetone or similar. Otherwise you will only get a partial bonding that will tear away easily.

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Is there delamination between the metal and the bodykit? Best option is gonna be take it off and re-bond it (Thats so not gonna happen) I wonder if you can drill holes and inject high strength low viscosity adhesives in there that can spread out inside the gaps and bond it solid.

 

Bodykit is bonded fine mate, its just the flex in the panels itself (mainly wings and rear arches.)

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