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TOPIC: What sealant (replacing external power socket)

What sealant (replacing external power socket) 2 months 1 week ago #440342

  • pmyo
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intransient1 wrote:
I have just had to reseal one of my rails, I used W4 mastic to reseat the rail on then used Sikaflex 512 to seal round the rail giving a cleaner smoother finish and hopefully stop the dirty edges that only using mastic ends up with.

I did the same - I fitted a exterior socket on my van (there wasn't one as standard). Used w4 mastic but finished the edge off with sikaflex. Also did the same on my old van on rails, was watertight and looked good without getting grubby overtime.
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What sealant (replacing external power socket) 2 months 1 week ago #440343

  • Woodentop
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You should use a non-setting sealant as dealers use around shower try outlets. If you use domestic sealant which is NOT designed to tolerate vibration you may find it comes unstuck. Non-setting sealant stays permanently pliable and will thus never leak.

You need something called IDL99 - Googling will find it - but beware, it is an 11" tube so you will probably need to buy an application gun as well. The one good thing is that the stuff never goes hard so you only ever buy one tube!
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What sealant (replacing external power socket) 2 months 1 week ago #440359

  • biley_adam
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It does leave a residue that prevents mastic bonding correctly. Which is why you use meths after.
DrZhivago wrote:
biley_adam wrote:
You remove all the old mastic [using] white spirit and a cloth. You then wipe over with meths to remove any residue from the white spirit.
Does white spirit leave a residue? I have used it for cleaning for years and it had never occured to me that it did not wipe/evaporate completely away. This afternoon I was using it to clean up a photographic flashgun I got from ebay (must have been a sticky label on it once) and I was particularly looking at the smooth black plastic under a bright light to check it was completely clean and saw nothing remaining, but I'm prepared to be wrong.
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What sealant (replacing external power socket) 2 months 1 week ago #440360

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I personally wouldn't use Soudal Fixall on anything on the outside of the van. The same with Sikaflex 512 etc! I have used them when re-building interiors on caravans etc, but once they cure they are a pig to remove.

I wouldn't fancy trying to replace a bent awning rail etc that had been stuck on using that.
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What sealant (replacing external power socket) 2 months 1 week ago #440367

  • welshti
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biley_adam wrote:
I personally wouldn't use Soudal Fixall on anything on the outside of the van. The same with Sikaflex 512 etc! I have used them when re-building interiors on caravans etc, but once they cure they are a pig to remove.

I wouldn't fancy trying to replace a bent awning rail etc that had been stuck on using that.

I can agree, I had to redo the toilet door as it was not sitting correctly and it was tough but feel confident its unlikely to shrink and leak like some of the tape that i've taken off.
Pembrokeshire, South Wales
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