Improving plastics petrol resistance?

Improving plastics petrol resistance?

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Discussion

Gingerbread Man

Original Poster:

9,171 posts

214 months

Saturday 27th September 2014
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I have a fog light directly under my fuel cap, if the fog light gets petrol spilt on it, which it does every now and then, the plastic cracks. I was wondering if I could lacquer the plastic back to resist petrol spills and therefore new back mounts for the light when ever I'm clumsy.

I can spill petrol on it, drive 30 mins home, part of the back casing will have reacted and cracked off.

7even

462 posts

194 months

Saturday 27th September 2014
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Yes you can but it would need to be 2k, it would obviously change the appearance of the trim so if you have any other parts that are the same finish you may want to clear them too.

Gingerbread Man

Original Poster:

9,171 posts

214 months

Saturday 27th September 2014
quotequote all
Only the fog like the other side. Slimmer units that replaced defender items on the Caterham. Tried looking for yet another replacement but no obvious replacements.

Gingerbread Man

Original Poster:

9,171 posts

214 months

Saturday 27th September 2014
quotequote all




7even

462 posts

194 months

Saturday 27th September 2014
quotequote all
or what about a wrap type material, I think they're quite resilient?

Gingerbread Man

Original Poster:

9,171 posts

214 months

Saturday 27th September 2014
quotequote all
Anything like that, just to keep it in one piece! But if the petrol got between the vinyl and plastic, it would dissolve the adhesive.

Squiggs

1,520 posts

156 months

Sunday 28th September 2014
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Spraying 2k could be the answer - but .....
given that's there's a gap between lens and housing you'd have to coat all surfaces - inside and out (not a problem - but a fiddly little job)

So ......
as above - would a piece of film over the top do the job?
I've never heard of clear wrap de-laminating because of petrol .....


civicduty

1,857 posts

204 months

Monday 29th September 2014
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Have you found out what caused the paint to react around the exhaust yet OP?

Gingerbread Man

Original Poster:

9,171 posts

214 months

Monday 29th September 2014
quotequote all
civicduty said:
Have you found out what caused the paint to react around the exhaust yet OP?
Not yet, cars being dropped off tomorrow eve. To be honest the paint man just keeps saying 'heat', which isn't filling me with confidence.
I do agree that heats the catalysts, but why is the paint reacting? Previous paint job that had been on since 99 was fine. All other Caterham are fine.

My paint seems very easily chippable anyhow. Been sprayed for ~8 months now. Something must be amiss. I didn't know enough about the paint and ins and outs to pursue my 'paint bubbling' thread. I'll try to get him to ring the supplier, or I'll try too.

Haven't long to get this 100%! It's shipping out towards the end of the month.