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View Full Version : Quick quezzie - which silicon on exhaust?


kellyjo
20-03-12, 01:27 PM
Ive just replaced my can with a lovely oval carbon stubby and it attaches with 3 bolts. Theyre as tight as I can get them but there is a tiny leak just in one spot. I assume its ok to seal with silicon, question is which one, do i need heat resistant stuff or will plain old kitchen sealant suffice?

Thanks, KJ xx

Owenski
20-03-12, 01:39 PM
VERY high temp sealent.
http://www.ebay.co.uk/itm/SILICONE-SEALANT-AUTO-EXHAUST-CAT-SAFE-ASSEMBLE-PASTE-/320383990962?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item4a985fbcb2

timwilky
20-03-12, 01:52 PM
plain old bathroom does it. But use clear.

Reeder
20-03-12, 02:00 PM
Quite conflicting advice there.

kellyjo
20-03-12, 02:05 PM
I think ill try the bathroom stuff first and if it doesnt last i'll get the heat resistant stuff!!

Thanks for the replies x

kellyjo
20-03-12, 02:05 PM
I think ill try the bathroom stuff first and if it doesnt last i'll get the heat resistant stuff!!

Thanks for the replies x

timwilky
20-03-12, 02:10 PM
I was surprised when Carbon Can told me to use plain bathroom silicon. But it works.

monkey
20-03-12, 02:34 PM
From my own experience it doesn't always work. If you have to buy some I'd get stuff that should work from the off.

monkey
20-03-12, 02:35 PM
Oven silicone sealant will also work.

Scoobs
20-03-12, 03:32 PM
I used clear bathroom silicon on mine with now bother at all.

monkey
20-03-12, 04:23 PM
You pays your money and you takes your chance.

Bluefish
20-03-12, 06:17 PM
How hot does an exhaust get? Google says 250 deg c

Dave20046
20-03-12, 06:19 PM
I think ill try the bathroom stuff first and if it doesnt last i'll get the heat resistant stuff!!

Thanks for the replies x

I'm sure that stuff owenski linked is cheaper than decent bathroom sealant! (frustratingly expensive stuff)

But the above sounds like a good option providing you've got a bit lying around and aren't going to go give B&Q £8-£12

Bluefish
20-03-12, 06:26 PM
I have a small tube of this stuff you can have, it comes with fans for domestic boilers for sealing around the flue and fan, http://www.acc-silicones.com/content/products/as5550.ashx says 180 deg c max