We have a cultured marble sink with a couple of hairline cracks radiating out from the outlet, less than half an inch in length.
There is no leakage, and the cracks don't appear on the bottom of the sink, so I think this is just a cosmetic problem, but I would like to fix it.
I've read that polymer resin can be used for this purpose, but I think these cracks, being hairline width, are too tight for resin to get into the cracks, which makes me think I should widen the cracks before applying the resin, which I'm not real eager to do lest I make a small problem into a big one.
Is there a very thin, watery resin that would sink into a hairline crack, or a proven technique to solve this problem, or should I just keep ignoring it?