Greetings all,
I have an old slate sink built by the Monson Slate Company that has developed a couple small cracks just enough to cause some minor leaking into the cabinet below.
We really like the sink, and would like to repair it in place, if possible. My approach would be to cut along the crack with a dremel tool or robozip, to make a trough to lay a bead of some sort of caulking.
My thought is that there must be some sort of adhesive caulking available as something was used to put it together in the first place. Dos anyone know what might work for this application?
I recall hearing of 3-M’s 5200 marine caulking for this sort of thing, and have been familiar with the product as I have been messing around with boats for as far as I can remember. Has anyone used it for this sort of repair?
Thanks for any info you have to offer, I look forward reading!!
Tad2
Replies
I'm a big fan of polyurethane glue (gorilla glue) for oddball cracks since it expands as it cures. I'd clean the cracks very well with laquer thinner and let it evaporate off. Tape on both sides of the cracks to keep the glue from getting everywhere. Also tape a shopvac hose to the backside of the crack so it will draw a vacuum on the crack, sucking air from the other side.
Using a small brush (acid brush is ideal) brush the poly on the crack and wait patiently. Slowly the glue will be drawn into the crack. Keep brushing on glue as it is sucked into the cracks. On small cracks it's not a bad idea to heat the area to thin the glue and let the shopvac run for 10, 20 minutes or more if need be.
When you're convinced the glue has made it into all the cracks just let it set up and as it expands it will seal parts of the crack that other glues won't touch.
Good luck
Beer was created so carpenters wouldn't rule the world.
Clean well, epoxy.
Lexel or mix some slate dust with epoxy.
If ya can open the crack even better is Corian Seam fill in the color closest to what the WET slate looks like. Saturate the repair area with Denat.Alcohol and get the seam fill in as best as you can ( it sets up pretty fast so be well prepared with clamps and hot melt glue blocks to the slate) scrape off the excess with a card scraper and buff with 220 paper wet.
Easy way to mix seam fill is to clamp it in an orbital sanders spring paper clamp and run the sander for a 1 minute exactly.
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