If you prep the area right and really follow the instructions, it can hold up for a couple years, especially on hairline cracks.
Yeah, totally agree—surface prep is everything. I used one of those mesh-reinforced kits on a bathroom sink last year and it’s still holding up, but I was super careful to clean and dry the spot first. I do think it’s worth mentioning that some of those kits have pretty harsh chemicals, though. If you’re trying to keep things eco-friendly, there are a couple brands out there with lower-VOC options (not perfect, but better).
For anything bigger than a hairline, I’m with you—it’s just a band-aid. And honestly, if you’re seeing swelling or any sign of water getting underneath, that’s when it can get moldy fast. At that point, replacement is probably the greener long-term move anyway... less waste from failed repairs down the line.
But yeah, sometimes you just need something to get by until you can budget for a new sink. Been there myself more than once.
Yeah, those kits are decent for small cracks if you’re willing to put in the prep work. I’ve seen a few folks try to skip steps or rush the drying and it just peels off after a few months. One thing I’m curious about—has anyone tried using those UV-cure resins instead of the standard epoxy kits? Wondering if they’re actually any tougher or just hype.
Tried one of those UV kits on a hairline crack last year—honestly, didn’t notice much difference compared to regular epoxy. Maybe a bit quicker to set, but not sure it’s any tougher. Prep still matters most, from what I’ve seen.
Yeah, I hear you on the prep—makes or breaks the repair, no matter what kit you use. UV stuff’s nice for speed, but I’ve seen regular epoxy hold up just as well if you really clean and rough up the area first. Sometimes the “miracle” products are just hype.
Sometimes the “miracle” products are just hype.
Right? I fell for one of those “as seen on TV” fixes once—looked good for a week, then the crack came back angrier. Anyone tried just living with a hairline crack for a while, or does it always get worse?
