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The mkiv Supra Owners Club

odd bonnet happenings..


toyo rob

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bought a seibon fibreglass based carbon fibre bonnet 3 or so years ago and recently every time it gets warm out, the bonnet has a nasty habit of looking like it has condensation underneath the clear casing.

does everyone suffer this? and if so any tips on stopping it? or is it time to just paint over it (if that can be done)

 

cheers

 

rob

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it actually gets better when its cooler, how hard is it to redo the lacquer?

 

When its goes milky like that it needs sanding back and buffing and relaquering i would get a bodyshop to do it though as its very easy to cock it up, shouldnt be too expensive though and should look brand new when its done

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Very common! its because they use a cheap clear coat and the UV content aint good, thats just sun damage! the TRD rear spoiler blades are common for going "milky"...

 

you have 2 options! carefully DA the bonnet down and then have it clear coated again (could damage weave if not careful), or just get it rubbed down, primed and painted!

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I don't know if it's true, but I did some research on this a while ago and found that the older Seibon units weren't treated with a clearcoat but a gelcoat instead. Would be the same stuff as on the hull of fibreglass boats. "They" would also say that if this type of bonnets would be sanded down and recleared it would appear frosted forever. Some people used marine class rubbing compounds and that would get rid of these "water spots". Haven't tried it myself as those marine products should be a lot more aggresive and I wouldn't want to damage the coat on my bonnet even more then it already is. At least I can get it to shine perfectly now for at least an hour if there are shows and/or photoshoots. This is what I did:

 

1. Clayed the bonnet until it's as smooth as glass.

2. Meguiars rubbing compound

3. Meguiars step 2 crystal polish

4. NXT wax to protect it for a couple of days

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