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Repairing crack in fiberglass?

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Old 03-28-2021, 11:02 PM
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Default Repairing crack in fiberglass?

So I bought an aftermarket spoiler by someone who isn't a vendor. Though it is a blatant rip-off of a certain... Aggressive spoiler if you catch my meaning.

Anyway, they did the same process as the other vendor, starting with hacking off the OE pedestals that are on a standard 98-02 SS Spoiler. The job they did filling it in though was rather 'meh'.




As you can see, there is a crack on the inner edges of where the pedestals used to be. Anyone know of a good way to repair these cracks without having access to the other side? I've seen some stuff searching google but that all seemed more related to boat repair.

Thanks all!
Old 03-30-2021, 10:56 AM
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Ideally all fiberglass is to be repaired from the inside
but since there is no access I would vee out the crack with a burr bit then use 24 or 40 grit to rough up the area
Then use Kitty hair or long strand fiberglass filler mixed with about 25% evercoat rage filler to make it manageable
Dont use short strand as it will crack again
you'll have a bit of smoothing to do after applying the kitty hair but cracks shouldnt resurface



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