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Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 15:33
by browneyes1311
Myrtle has been doing brilliantly since Nigs has been doing my engine Ives just returned from 750 mile round trip with no problems etc except for two first being that that when the heavens opened I had a drip drip from my roof which I have traced back to sky light.(2nd is that my speedo has slipped in th dash but its still working fine)
What is the best sealant , mastic to use? I think it looks like someone has used bathroom silicone sealant before which due to sunlight isn't up to the job.
Also as it is a high top what is the load bearing capacity if I have to climb up there? Im on a diet but dont think the skylight can wait that long
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 16:10
by R0B
Sikaflex is the stuff you want
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 16:15
by Jeff J
R0B wrote:Sikaflex is the stuff you want
Ditto
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 16:53
by browneyes1311
I've just googled it there are a number of different ones. Looking at it I'm thinking silkaflex marine may be best one?
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 16:56
by clift_d
Sikaflex 512 Caravan is the one most people use for this kind of thing.
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 16:59
by browneyes1311
Thank you so much You guys rock xxx
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 20:18
by pocolow
Mine started leaking today ...no Sikaflex in so normal silicone will have to do until we get back from France...

Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 20:37
by what2do
Silva flex ebt, travis Perkins stock it, as do other builders merchants so you don't have to wait for the mail.
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 20:50
by SamsBus2012
browneyes1311 wrote:Thank you so much You guys rock xxx
If you are looking for sika flex 512 in plymouth area - Cara Camp on Union St. Been there for years - bit of an experience in itself
http://caracamp.co.uk/index.php?sid=4n1 ... MIT=Search" onclick="window.open(this.href);return false;
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 21:54
by clift_d
You can also get it at GoOutdoors.
Be aware that it does have a shelf life - there's a use by date stamped on the tubes, so only buy it though when you're pretty certain that you're going to be using it.
Re: Best mastic for my skylight? Hints n tips please
Posted: 16 Aug 2014, 23:11
by browneyes1311
Guys you are wonderful Ill pop down to Union St in the week and Ill definitely be checking the use by date.

Re: Best mastic for my skylight? Hints n tips please
Posted: 17 Aug 2014, 16:19
by Mouseyt25
We used tigerseal in ours as the seal had completely perished