Fix for cracked paint on CF??
09-12-2002, 07:19 PM
#11
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Location: Amityville, New York
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OK, hope it works out for you, dont let them bullshit you now that you are prepared, and dont let them fix the crack with polyester resin either, its not cracked on the underside as well? Or cant you see it under there?
09-14-2002, 05:10 PM
#15
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Those valleys are prone to cracking, for various reasons. Remember that when that is laid up in the mold, its upside down, those valleys tend to get excess epoxy that 'puddles' in there, excess epoxy is no good, especially in the mold, they generate heat when they cure, sometimes too much heat if they laid the mold up too fast, that makes it brittle. Chances are there isnt any carbon fiber in that area, only epoxy, maybe a single layer of CF if that. Being not as strong, it tends to crack there. All thru the painting process there is ponding of material in those areas as well, too much primers and paint is no good. When your hood was primed, they SHOULD have used a good epoxy or urethane based primer, allowed it to cure, then wet sanded it before top coat, even so- areas such as those usually on get scuffed with scuff pads, not actually sanded, so there is a tendancy to get excess material in those areas, some guys use a 'wet on wet' primer, which is fine for brand new metal parts, but a no-no for glass or CF. Do you know for SURE what kind and brand of primer, paint, and clear they used when they did that hood? Hopefully they didnt give you shitty laquer primer.
09-14-2002, 05:25 PM
#17
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No need, dont let a little crack like that bother you, worse case is you have the shop who painted it re-do it for you, without seeing the hood first hand, if I was the one fixing it, I would add some glass/epoxy to the underside of that area to make it stronger, can you snap a pic of the underside of the hood for me? IM curious as to how the hood latches and how the hood hinges bolt on to it??
09-16-2002, 09:54 PM
#18
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Join Date: Jun 2002
Location: La Plata, Maryland
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Yea I get them tomorrow after work. The hood has bolts that go into it as opposed to the studs coming out. All the braces on the underside I glued down before I took the hood to the bodyshop. Thye were all loose and had lots of play . I used Geocell adhesive.
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