Sikaflex to seal under bonnet
Discussion
I've got a leak in the drivers footwell so plan on re-sealing the grommets, clutch cover and brake fluid reservoir on the inner wing under the bonnet.
What's the best way to apply Sikaflex?
Stick the Sikaflex canister into a sealant gun and squeeze it where I want it or should I squeeze the Sikaflex onto a piece of cardboard and apply with a knife?
Any tips/tricks welcome.
What's the best way to apply Sikaflex?
Stick the Sikaflex canister into a sealant gun and squeeze it where I want it or should I squeeze the Sikaflex onto a piece of cardboard and apply with a knife?
Any tips/tricks welcome.
A900ss said:
I've got a leak in the drivers footwell so plan on re-sealing the grommets, clutch cover and brake fluid reservoir on the inner wing under the bonnet.
What's the best way to apply Sikaflex?
Stick the Sikaflex canister into a sealant gun and squeeze it where I want it or should I squeeze the Sikaflex onto a piece of cardboard and apply with a knife?
Any tips/tricks welcome.
What's the best way to apply Sikaflex?
Stick the Sikaflex canister into a sealant gun and squeeze it where I want it or should I squeeze the Sikaflex onto a piece of cardboard and apply with a knife?
Any tips/tricks welcome.
I would seal clutch/reservoir with Silicon. Silkaflex will certainly seal and fix your leak, however, the next time you want to check your levels, it will be a nightmare reopening the covers!Save the Silkaflex for windscreen, front/rear lights, grommets, door seals and any permanent fixtures. Silicon will work just as well, but can be removed soooooo much easier, yet still seal??
Just offering you my 10-years ownership experience of my ex-Chim,
HTHs?
T
K4TRV said:
I would seal clutch/reservoir with Silicon. Silkaflex will certainly seal and fix your leak, however, the next time you want to check your levels, it will be a nightmare reopening the covers!Save the Silkaflex for windscreen, front/rear lights, grommets, door seals and any permanent fixtures. Silicon will work just as well, but can be removed soooooo much easier, yet still seal??
Just offering you my 10-years ownership experience of my ex-Chim,
HTHs?
T
Contradicts previous advice I was given saying that silicon will melt with the under bonnet temperatures and I'll have leaks again within a month.....
A900ss said:
It does help but......
Contradicts previous advice I was given saying that silicon will melt with the under bonnet temperatures and I'll have leaks again within a month.....
No way, you need hotter than exhaust temps to burn off silicone sealer (even the bathroom variety) I have even seen it seal holed silencers on cars and it stays put Contradicts previous advice I was given saying that silicon will melt with the under bonnet temperatures and I'll have leaks again within a month.....
I agree its easier to remove from the Clutch res cover but use Silkaflex around the brake master res 
Top tip: use a gun to stick it on and then dribble onto your finger and rub it onto the silicon to smooth it down. I used marine silicon on the clutch reservoir to make it easier and tidier to remove and sikaflex everywhere else. I would also look at your windscreen seal, especially the bottom as although mine looked absolutely solid it ended up being one of the main leaks onto my leg. 
s p a c e m a n said:
. I would also look at your windscreen seal, especially the bottom as although mine looked absolutely solid it ended up being one of the main leaks onto my leg.
I used thishttp://www.ebay.co.uk/itm/like/270724917502?limghl...
Bloody brilliant stuff
A900ss said:
I've got a leak in the drivers footwell so plan on re-sealing the grommets, clutch cover and brake fluid reservoir on the inner wing under the bonnet.
What's the best way to apply Sikaflex?
Stick the Sikaflex canister into a sealant gun and squeeze it where I want it or should I squeeze the Sikaflex onto a piece of cardboard and apply with a knife?
Any tips/tricks welcome.
For the clutch cover use a low modulus neutral curing silicone so you can remove the cover and then remove with your fingers .What's the best way to apply Sikaflex?
Stick the Sikaflex canister into a sealant gun and squeeze it where I want it or should I squeeze the Sikaflex onto a piece of cardboard and apply with a knife?
Any tips/tricks welcome.
http://www.idealsealants.com/low-modulus-neutral-c...
Discopotatoes said:
I've always wondered if that works! 
Pupp said:
I've always wondered if that works!
It's been around for decades keeping the water out of boat cabins and caravans. Tried and tested. Not an instant cure though - it's very thin (obviously, so that it can "creep") so you may need several applications. It dries clear and it isn't expensive. No "gap-filling" ability though so use mastic for the bulk of the job and finish off with Tolleys. I've used it to keep the rear light covers on my Chimaera sealed and mist-free (would work fine on the damp Sagaris headlights that I saw in Banchory in the summer - sorry mate - forgot your name!) Also my windscreen seal has benefited from a couple of applications.
Worth a try.
Edited by tuscan30 on Sunday 12th January 07:56
just on sikaflex, if you do use it........make sure it's warm or at minimum room temperature and mask the area well
its a pig to flow from the gun when its cold
also when you need to remove it.......an old hair dryer on the area to heat it up makes it a piece of cake to peel off, pic below of when I did my chim rear lenses
its a pig to flow from the gun when its cold
also when you need to remove it.......an old hair dryer on the area to heat it up makes it a piece of cake to peel off, pic below of when I did my chim rear lenses
Discopotatoes said:
Never knew that existed - I have managed to cure about 90% of my leaks but still some getting through. Just ordered a large bottle of this stuff to use on the windscreen seal and then every other seal I can get to !
Sardonicus said:
Thing is the windscreen should be water proof without the rubber trim or additional sealer 
its a bonded screen after all the rubber trim is purely cosmetic with the sealer just to keep it put.
I think the problem is that the bonding over time gets micro cracks in it allowing the capillary action of water, mine let water in on the drivers side by the wiper but leaked into the passenger footwell. its a bonded screen after all the rubber trim is purely cosmetic with the sealer just to keep it put. Gassing Station | Chimaera | Top of Page | What's New | My Stuff