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Author: Subject: sealant ???
nick-york

posted on 1/11/13 at 10:27 PM Reply With Quote
sealant ???

Hi ! Is sikaflex the best sealant for putting between aluminium and the chassis before i put the rivets in ?cheers. Hope I've spelt it right !
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big-vee-twin

posted on 1/11/13 at 10:53 PM Reply With Quote
Yes or you can use tiger seal.





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unijacko67

posted on 1/11/13 at 10:57 PM Reply With Quote
I used a good quality clear silicone and its worked great.





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BenB

posted on 2/11/13 at 06:51 AM Reply With Quote
I think there are various types and grades of sikaflex but yes, it's good stuff.
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FuryRebuild

posted on 2/11/13 at 09:19 AM Reply With Quote
I'd steer away from the adhesive side of sikaflex. It's tougher than no more nails. There may be a time when you need to remount your body. It will come off in pieces if you've used adhesive.

Clear silicone as mentioned above is a good plan.





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onenastyviper

posted on 2/11/13 at 10:07 AM Reply With Quote
aren't the panels bonded to provide more structural strength?





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adithorp

posted on 2/11/13 at 10:24 AM Reply With Quote
If you want the sealant to be structural then use a PU (polyurethane) sealant, Sykaflex, Tigerseal, etc. Remember though, if it's sticking panels to chassis, it's only as strong as the bond between your paint/powder-coat and the steel. It will make removal very difficult though.

If you just want it to seal the panel to keep moisture out then use a silicone sealant.





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Mark Allanson

posted on 2/11/13 at 10:52 AM Reply With Quote
DON'T use silicone, it's solvent is acetic acid which will eat your ally and rust your chassis in very short order





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iank

posted on 2/11/13 at 10:57 AM Reply With Quote
quote:
Originally posted by Mark Allanson
DON'T use silicone, it's solvent is acetic acid which will eat your ally and rust your chassis in very short order


+1 use builders sealant if you don't want adhesive not sanitary. The neutral cure is also stronger than acetoxy cure iirc.
http://www.screwfix.com/p/no-nonsense-builders-silicone-clear-310ml/83710





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40inches

posted on 2/11/13 at 10:58 AM Reply With Quote
quote:
Originally posted by Mark Allanson
DON'T use silicone, it's solvent is acetic acid which will eat your ally and rust your chassis in very short order


The best Silicon for just sealing is Silicon P, this is an inert sealer used for Polycarbonate roofing panels.






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adithorp

posted on 2/11/13 at 11:30 AM Reply With Quote
quote:
Originally posted by Mark Allanson
DON'T use silicone, it's solvent is acetic acid which will eat your ally and rust your chassis in very short order


What do you call "short order"? I've just had a removable ally panel off that I'd sealed with silicone 6-7 years ago. When I peeled the sealant off it was still shiney underneath.





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