Cracks Developing in Fiberglass
I am looking for an answer to a perplexing issue. While preparing to wash the MH this morning (we are in southern Arizona , when I noticed about ten hairline cracks developing in the fiberglass, all ...
Forum Discussion
They're cosmetic stress cracks in the gelcoat.
Fiberglass is flexible, gelcoat not so much, so if that area suffers some bending you get stress cracks. It's probably not something you did. Of course you can get stress cracks via impact but that's usually a round or star pattern. Gelcoat itself has no structural strength; it just provides a smooth waterproof surface.
It doesn't mean there's anything wrong with the fiberglass itself; it just means you drive down the road occasionally.
The solution is to sand it out and paint on some gelcoat or get it smooth and repaint. Stress cracks are likely to return.
Fiberglass is flexible, gelcoat not so much, so if that area suffers some bending you get stress cracks. It's probably not something you did. Of course you can get stress cracks via impact but that's usually a round or star pattern. Gelcoat itself has no structural strength; it just provides a smooth waterproof surface.
It doesn't mean there's anything wrong with the fiberglass itself; it just means you drive down the road occasionally.
The solution is to sand it out and paint on some gelcoat or get it smooth and repaint. Stress cracks are likely to return.
