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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16884

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
A question for the "Sikaflexperts"
I need to reseal a skylight unit in a caravan due to water ingress between the plastic skylight frame and the metal skin of the caravan roof. The old sealant is weird stuff with a texture a bit like "Blu-tac" but white not blue, and has evidently deteriorated.

I was planning to clean the old sealant from around the join (without removing the skylight) and reseal with a Sikaflex sealant, but I have no idea which of the many different Sikaflex sealants is the best to use. Can anyone recommend one, please?

I need one which is white, will remain flexible, and which won't damage the skylight frame or roof, and which I won't regret if I ever have to remove the skylight.

I would welcome some guidance! These tin tent things are new to me!
Post #334876 31st May 2014 9:12pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
no don't use silkaflex , you well never get it out again without damage , use a bedding compound
it's non setting but 100% watertight

I would remove the skylight as you want the sealer under the lip round , normally I say normally easy to get out

normally the outer frame is pulled down by the inner frame by screws sometimes screws are hidden under covers

I changed one the other day all east really , worse bit is how to get up there on outside as roof aren't strong enough to climb on

I dont think a thin bit sealer would last long just put round the edge , to much flex , sun etc

bedding compound needs to go under the sealing lip of roof light

you can get it in most caravan shop in a tube to use in caulking gun
Post #334880 31st May 2014 9:18pm
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Cold_n_Wet



Member Since: 15 Oct 2012
Location: Bergen
Posts: 244

Norway 
Early (about 15 years back) we used Buytl 237, but its now been replaced by TEROSTAT 2759 BUTYL. "Rafiki" 2007 110 STW - Rolling rebuild.
Post #334910 1st Jun 2014 12:11am
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charliebaja



Member Since: 05 Aug 2013
Location: Surrey
Posts: 211

United Kingdom 2002 Defender 110 Td5 CSW Zermatt Silver
You need to use Captain Folleys creaping crack cure
its finds the leak and follows the path then seals it up
Post #334914 1st Jun 2014 12:32am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16884

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Thanks guys, most helpful!

Terostat sounds like the stuff to use, provided I can find somewhere that sells it.
Post #335183 2nd Jun 2014 9:41am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
munch90 wrote:
no don't use silkaflex , you well never get it out again without damage ,


^^Not strictly true......Depends if you use the correct Sikaflex fit for purpose........

Sikaflex 11FC.

We use this a hell of a lot in the marine industry especially for future disassembly. I have only seen grey. Blackwolf if you wish 'pm' me and I may be able to lay my hands on a tube.

Thumbs Up Loctite 5922. Thumbs Up

http://tuotteet.etra.fi/en/g2317681/loctit...isassembly If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #335189 2nd Jun 2014 10:26am
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
yes I know but the main types you see for sale are adhesive and too strong for this type of thing

I found the bedding compound stuff handy for other things like outdoor electric boxes etc , gives a another layer of protection without gluing it tight

and its a lot cheaper

no good for this job but anyone tried this stuff
eBay item number:

eBay Item No. 111273797460

may be good for tow socket etc , but expensive and probley no good if you need to alter wiring later
Post #335198 2nd Jun 2014 10:48am
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Doesn't get any cheaper than the Loctite if Blackwolf wants a tube, the colour's ok and he can collect as we are both in Dorset........

Rolling with laughter If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #335201 2nd Jun 2014 10:52am
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Oscar Romeo



Member Since: 16 Apr 2014
Location: South Yorks, the pinnacle of all human achievement
Posts: 121

England 2010 Defender 110 Puma 2.4 XS CSW Rimini Red
last bedding compound i bought was a roll with peel of tape on each side. peel the tape off, stick on, peel the top tape off stick the component on...boom jod done!

Carvans flex and twist anything that sets solid just crack at lets water in.
Post #335203 2nd Jun 2014 10:59am
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DAZ110



Member Since: 06 Dec 2007
Location: East Sussex
Posts: 2004

United Kingdom 2013 Defender 90 Puma 2.2 XS CSW Barolo Black
I've always used this on our static caravans:

http://www.ebay.co.uk/itm/Carafax-IDL99-Se...2a366d93eb
Post #335262 2nd Jun 2014 5:41pm
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david mitchell



Member Since: 01 Jul 2012
Location: Meath
Posts: 418

Ireland 2003 Defender 90 Td5 HT Epsom Green
Sikaflex 291. Awesome. Used in the marine industry above and below the water line.
Post #335282 2nd Jun 2014 7:28pm
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