Look at CT1. They also have a product called multi solve that will clean the rest of that mastic off. It looks like it was fixed with a normal bathroom sealant when it needed something that would both seal and handle the weight.
CT1 gets used and abused in a lot of situations so I would take the reviews with a pinch of salt. The multi solve is very useful when you're cleaning old mastic residue off baths.
good shout on the clips... I'll look into that. CT1 has been applied and the sink is back in place with supports pushing it up. Will leave it overnight and check how it's hanging tomorrow. Thanks @Airhead and @bobbo for replying back.
Look at CT1. They also have a product called multi solve that will clean the rest of that mastic off. It looks like it was fixed with a normal bathroom sealant when it needed something that would both seal and handle the weight.
CT1 gets used and abused in a lot of situations so I would take the reviews with a pinch of salt. The multi solve is very useful when you're cleaning old mastic residue off baths.