Installing an undermount bathroom sink

[margaret holmgren]

Our undermount bathroom sink was installed under a granite counter. The sink developed a crack. When we tried to remove the sink to replace it, a couple of the brackets that helped to hold the sink came off when we pried out the sink. they appear to have been mounted to the granite underneath with some sort of plastic-like adhesive. We got a new sink to put in but don't know what to use to put those brackets back on. Any advice?

[markts30]

I would hire the granite company to come back out and re-mount the brackets and/or sink...
They use a special epoxy and the risk of damaging a granite counter is not something I would take on....

[master plumber mark]

I would not touch that with a ten foot pole

if you still have a couple of hangers intact,

you might be ok ....

I have literally GLUED some undermount sinks back in place
with %100 SILICONE before.....


but if you have no hangers left its best to call a Granite perons
to tap that granite and install new anchors...