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Thread: Tiny hairline cracks / scratches

  1. #1
    Senior Member
    Join Date
    Jun 2008
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    270

    Tiny hairline cracks / scratches

    Is there a way to prevent those tiny hairline cracks that form on the lip of most fiber glass pools and spas?

    I'm pretty sure this is only an aesthetic problem. It doesn't really seem to hurt anything, but I would like to stop new ones from happening. They are surface scratches or cracks on the coating on my fiberglass spa.

    Thanks!!!
    20,000 gallon IG vinyl

  2. #2
    Senior Member spishex's Avatar
    Join Date
    Oct 2008
    Location
    Hillsborough, NC
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    1,377

    Re: Tiny hairline cracks / scratches

    The only way to prevent them is good construction and a solid base. If the shell flexes at all under the weight of the water it will crack the acrylic, which is almost paper thin. If you notice any deteriorating wood behind the cabinet or settling on whatever base it's on, repairs to both will prevent future damage.

    There are various polishes that you can use to try to eliminate the visibility of the cracks. If you get a bad one it's a good idea to drill very small, very very shallow (like 1/32") holes at either end to prevent it from getting worse.

  3. #3
    Senior Member
    Join Date
    Jun 2008
    Posts
    270

    Re: Tiny hairline cracks / scratches

    Quote Originally Posted by spishex
    The only way to prevent them is good construction and a solid base. If the shell flexes at all under the weight of the water it will crack the acrylic, which is almost paper thin. If you notice any deteriorating wood behind the cabinet or settling on whatever base it's on, repairs to both will prevent future damage.

    There are various polishes that you can use to try to eliminate the visibility of the cracks. If you get a bad one it's a good idea to drill very small, very very shallow (like 1/32") holes at either end to prevent it from getting worse.
    Thanks. The spa is attached to the pool and set in cement with pavers all around it. The only place I have cracks is on the small lip that sticks out around the tub. Ill post a pic.

    I have a lot of kids that are always in there and jumping into the pool off the edges and stuff. That can't be helping

    What polish should I go with?
    Attached Images Attached Images
    20,000 gallon IG vinyl

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