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Old 09 December 2007, 09:55   #11
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Absolutely, the most used fastening in the marine industry, and if used correctly they are the best!
mmmmmmm...................
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Old 09 December 2007, 10:54   #12
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Having had to use an angle grinder and crow bar to take a jockey seat of out of a ribtec I don't have a problem with 30+ self tappers and a good bond with sikaflex, but 6 self tappers and some bathroom sealant
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Old 09 December 2007, 11:36   #13
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I put up a tin shed the other day which came with 1000s of self tappers. They were shit so I then drillled out each hole and stuck a pop rivet in - what a difference.
I think you may find that those self tappers were stainless steel, for a good reason. I agree they can be a bit grumpy to screw through steel but a drop of lubricant sorts that.

If your pop rivets are steel, they're gonna rust and the type with zinc plating don't last much longer. If you used aluminium rivets, they'll sacrifice themselves for the steel panels. And, unless you are lucky, the wee bit of the pull nail left inside the rivet is not always tight so the rivets might leak.

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If I ever want to dismantle I will just drill them out!!!
You may not have to.
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Old 09 December 2007, 13:52   #14
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Nope the shed is so much more solid now - the rivets have pulled it up nice and tight. Yes they are ally rivets in steel - bit like a landrover really - the shed isn't going to see much salt water so it will last long enough!!!
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Old 09 December 2007, 15:21   #15
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I think you may find that those self tappers were stainless steel, for a good reason. I agree they can be a bit grumpy to screw through steel but a drop of lubricant sorts that.

If your pop rivets are steel, they're gonna rust and the type with zinc plating don't last much longer. If you used aluminium rivets, they'll sacrifice themselves for the steel panels. And, unless you are lucky, the wee bit of the pull nail left inside the rivet is not always tight so the rivets might leak.

You may not have to.

What about Stainless Rivets They are just great !
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Old 09 December 2007, 16:53   #16
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Mmm. Sikaflex is the devils spawn! Twice now I've had to resort to extreme (destructive) measures to remove a sikaflex bonded item.

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Having had to use an angle grinder and crow bar to take a jockey seat of out of a ribtec I don't have a problem with 30+ self tappers and a good bond with sikaflex, but 6 self tappers and some bathroom sealant
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Old 09 December 2007, 17:44   #17
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Mmm. Sikaflex is the devils spawn! Twice now I've had to resort to extreme (destructive) measures to remove a sikaflex bonded item.
Me too, and it fekkin tore the first layer of lamination off!
Mind you, I did hit it with a big hammer.

Actually, I reckon it can be better than using fibreglass to hold down a seat or consol if the deck resin has been allowed to cure before the seat is fixed into place.
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Old 09 December 2007, 17:46   #18
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Which Sikaflex is this - they seem to do all sorts - I need some soon.
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Old 09 December 2007, 18:21   #19
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Cod, I think the one I was using wasn't genuine Sikaflex it was a general purpose equivalent sealant sold by my motor factors. It was called Tigerseal.
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Old 10 December 2007, 02:51   #20
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Which Sikaflex is this - they seem to do all sorts - I need some soon.
SIKA 292 is an adhesive, most of the others are sealants.
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