Superglue on fiberglass top

[Ralf11]

I found a few 1" long cracks in the fiberglass top or a small RV.

The cracks are a bit wider than a hairline crack so will need something that can 'fill' them - but they are still less 1 mm wide.

Will Superglue work for this? I don't think an epoxy will be able to get into the cracks, due to viscosity vs. width.

I want to take care of them before they spread.

 

[nadogail]

I have had a lot of luck using JB WATERWELD to patch holes in plastic shower enclosures and holes in sheet metal.

 

[AZ Pete]

you can heat epoxy with a hair dryer to make it flow into very small cracks. Just put the epoxy on the crack and use the hair dryer (or a heat gun set on low) to blow the epoxy into the crack.

 

[PCustoms]

Epoxy or super glue isn't structural, the crack will open up again.

Is it through the glass, or just crazing in the gel coat?

 

[Leaflessshadetree]

Drill the end of the cracks to stop them from going further. If you can get to the back side and add a layer of fiberglass cloth it will also help. Then use resin to fill the cracks and holes.

 

[WarDamnEagle]

Drive to the nearest boat repair shop/dealer and get them to repair it. Probably less expensive than you think and better than anything you can do at home.

 

[James-W]

Drive to the nearest boat repair shop/dealer and get them to repair it. Probably less expensive than you think and better than anything you can do at home.

This makes good sense to me.

 

[fitter30]

Surfboard repair
https://www.amazon.com/dp/B00MGUMLE0/?tag=atomicindus08-20

Sent from my KFDOWI using Tapatalk

 

[NUTTSGT]

What were people mixing with SuperGlue ? Baking soda to form a hardening paste ?

 

[rlitman]

What were people mixing with SuperGlue ? Baking soda to form a hardening paste ?

That does work. But it won't help the OP.

Cracks in fiberglass cannot be repaired with just a little adhesive of any sort. They're a sign of flexing in ways not designed for. Perhaps something is damaged under the glass, or it needs more glass reinforcement.