On 07/11/2018 21:32, Jon Parker wrote:
Got a 2 inch hairline crack in the bottom of the bathtub. Seems to be watertight but want to get it patched up.

Seems to be a choice of repair tape, or a kind of resin kit which involves mixing two parts together to form a resin which gets spread over the crack wtih a syringe

https://www.youtube.com/watch?v=h8vyX4GJaus

Anyone else care to suggest the way forward? Do I need to drill at both ends to stop it spreading? I'm reluctant to drill whilst it's still watertight. The bathtub is white fortunately so I don't have to worry too much about colour matching.


I tend to agree with those who say you are probably stuffed and looking
at a new bathtub - ouch!

And I agree with those saying that if you attempt a repair (knowing the
probability of long-term success is pretty low) supporting it from
underneath so that it can't move or flex again is essential.

I would go for an acrylic solvent myself. Yes, I think I would drill a
tiny hole at each end of the crack and then maybe dissolve the shavings
in the clear solvent to boost the colour. It's never going to look
perfect again but that might help.

IIRC pure ether dissolves acrylic but nowadays I think you can buy
acrylic welding solutions which contain the solvent loaded with
dissolved acrylic. A quick google on the subject brings up a few
solutions (sorry about the pun).

Hope this helps. Do let us know what you decide to do and how it works out.

Nick