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Repairing Cracks in Plastic Mouldings


Uncle Bulgaria

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I'd be grateful for dvice on repairing a small crack I have in the rear wheel arch fairing on my van, caused when an unknown third party clipped the wheel arch fairing in a supermarket car park. The moulding is "acrylic capped abs" I think. Its certainly not GRP and it is of constant material thickness and smooth on both sides. I'll drill a small hole at the end of the crack to prevent further propogation. Can Forum members advise what plastic filler I can use to fill the hole and the crack. Something thin that can wick into the crack would seem to be in order. Grateful for any recommendations.

 

Richard.

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Hi Richard

This is probably no good for you, but in Worcester there is a body repair company whom specialise in plastics like those fitted to motorbikes(fairings ect) His good in fact very good and even better very reasonable. I've known him for many years but he never lets his secrets out.

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Marley KS2 Pipe Solvent cement works well. If you mask each side of crack and then squeeze in it will bond the joint. From behind if you can get access you can use the sovent adhesive to layer on thin woven material to reinforce the joint. Something like Polyester cotton is fine.

You can then hide the thin dark line of the crack by filling with paint and polishing. Ideally though the crack should be plastic welded, but needs an expert who can do acrylic capped sheet (from behind) or paint to match afterwards.

 

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Den - 2008-11-17 6:03 PM

 

Hi Richard

This is probably no good for you, but in Worcester there is a body repair company whom specialise in plastics like those fitted to motorbikes(fairings ect) His good in fact very good and even better very reasonable. I've known him for many years but he never lets his secrets out.

 

 

If they are so good tell us who they are may help someone else

Paul

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