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paddyjoy
13th May 2012, 08:29 PM
Spent two hours with a multi tool today cutting out the sink hole in our new ikea timber bench top, I went against the instructions (had no choice) and put the hole less than 10cm from the end. Then (as always happens) I dropped the bench top about 6 inches and the end split.

I'm thinking I can just glue and clamp it but would appreciate any advice regarding what glue I should use etc....

Thanks

90078

Godzilla73
13th May 2012, 08:59 PM
G'day,

Grab some polyurethane glue, the green shed sells a small bottle of the Sika branded stuff for a few dollars. Be careful though, it foams up as it dries filling all the voids. Maybe do a test first to see how much/little to use, you'll always get a little popping out but wait till it dries and scrape off, don't smear it around when wet unless you can get it off with solvent that wont harm the finish, again test first.

stevoh741
13th May 2012, 09:57 PM
titebond III is an excellent waterproof PVA glue that would also do the job nicely. Either glue would be good

paddyjoy
13th May 2012, 10:46 PM
Thanks guys, I'll cut up the piece I cut out for the sink and try a few tests before doing the real thing...

Pitto
15th May 2012, 11:58 PM
What Godzilla said or you could look at West System 2part Epoxy.

another polyurethane glue is AV515, it works pretty well too.

seriph1
20th May 2012, 10:24 AM
Classic error that one (am guilty myself of this of course) .... there may be some further challenges as the break point 'may' be replicated though as yet invisible on the opposite side of the cutout so check that.

Also, as there is now a gap, it might pay to cut a slice to fill the gap instead of trying to glue it back together.

Finally, depending on the length you are dealing with, it may be difficult to clamp that point together - there are systems for doing it but the way I did it was to drill holes away from the join, on the concealed face (both sides in my case as I was able to pull the bench forward) - I fitted roofing screws into the holes then lightly clamped the broken sections together using "C" clamps

I used two pack glue, but can't remember the brand.

paddyjoy
20th May 2012, 10:58 PM
Thanks everyone, ended up using the sika poly glue and a 750mm quick clamp. Glue foamed out quite a bit but just kept wiping it away so didn't have to sand anything away at the end. Screwed it straight into the cabinets after removing the clamp so hopefully should hold together now, doesn't look like it extended into the other side of the cutout!

90314

seriph1
21st May 2012, 12:02 AM
What will you do about the enormous mark where it was cracked? You can see the damage from the moon!

;)














.... well done - very happy it worked out for you mate

Godzilla73
21st May 2012, 08:51 PM
Glad it worked out, you could use the same glue to stick a block on the under side to add a bit more support as well if you want too. Anything would do, a piece of pine or mdf. Might give it a bit more guts.

Gaza
21st May 2012, 08:55 PM
Spent two hours with a multi tool today cutting out



i was thinking that was the stuff using the multi tool, wow you are crazy jig saw or circular saw all the way buddy then clean up crns with multi tool maybe if required

paddyjoy
22nd May 2012, 12:24 AM
What will you do about the enormous mark where it was cracked? You can see the damage from the moon!

Thanks ha ha


Glad it worked out, you could use the same glue to stick a block on the under side to add a bit more support as well if you want too. Anything would do, a piece of pine or mdf. Might give it a bit more guts.

Didn't have much room underneath so put a bracket on either side of the crack, hopefully that should hold it together.


i was thinking that was the stuff using the multi tool, wow you are crazy jig saw or circular saw all the way buddy then clean up crns with multi tool maybe if required

Yes the multi tool was total overkill, the cutout can't be seen so a couple of minutes with a circular saw would have been just as good, didn't need to be that precise.