Sikaflex at Screwfix

Greenheart

Greenheart

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I want some clear sealant of a good grade for odd deck-leaks. Whenever I've used Sika in the past I made a horrid mess, so I reckon I can minimise that by buying clear.

It's at Screwfix for under £7 (300g). https://www.screwfix.com/p/sika-sikaflex-ebt-all-weather-sealant-clear-300ml/7286d

Is that unfamiliar cheapness representative of it being substandard, compared with the white 291 and 292 I've bought previously, or does it just show the price Sika ought to be, rather than what I've always paid at Force 4?
 
Thanks for that. Actually it's not really a cost issue, though I'm interested. I'm told that CT1 is the best bet, because even if the surfaces it is used on are not dry, it bonds and seals. I'm wary of using CT1 because I always make such a hideous mess with sealant, and because CT1 is said to be immovable once cured. I suppose it could be shifted mechanically but I don't want to make things worse.
 
Sika make a considerable range of sealants and adhesives for a myriad of different purposes, even some of that nasty silicone,I would not use any of them without having plenty of paper and masking tape handy. Clear stuff will go murky very quickly so it is no better.
 
A few years ago I got 10 tubes of Sikaflex for about twenty quid because they were a month out of date. It was as good as in date stuff. I haven't had as good a deal since then but keep your eye open for deals like that.

Kind Regards

Skip
 
I hadn't heard of Wonder Wipes.

I found many packs of out-of-date "Sugru" mouldable rubber at a B&Q 18 months ago. They sold me the lot at £1 each, about a 75% reduction. It's still fine now.

I was eventually persuaded by glowing reports about CT1, which Screwfix doesn't stock...

...I went to Travis Perkins and the lad there said the "Hippo" brand is better, and cheaper than CT1. I've never been let down by their products or recommendations, so that's what I bought.

Interestingly, when I asked if the Hippo brand sealant was available clear rather than coloured, I was shown the sample tray - a variety of colours and the clear really is very clear.
 
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dancrane said:
I hadn't heard of Wonder Wipes.

I found many packs of out-of-date "Sugru" mouldable rubber at a B&Q 18 months ago. They sold me the lot at £1 each, about a 75% reduction. It's still fine now.

I was eventually persuaded by glowing reports about CT1, which Screwfix doesn't stock...

...I went to Travis Perkins and the lad there said the "Hippo" brand is better, and cheaper than CT1. I've never been let down by their products or recommendations, so that's what I bought.

Interestingly, when I asked if the Hippo brand sealant was available clear rather than coloured, I was shown the sample tray - a variety of colours and the clear really is very clear.
Click to expand...

Stixall is an Everbuild/ Sika hybrid polymer product similar to CT1. It is available in clear, white or black from Toolstation https://www.toolstation.com/stixall-adhesive-sealant-290ml/p77137
 
Thanks, but I've been unclear about the purpose - it's not for the Osprey, it's a boat I've been helping with, and there are small untraceable leaks between the gunwale and the rubbing strake. We're hoping that if rain doesn't keep filling the narrow space between them, the leaks may be eliminated.

Interesting that the description of the variety of Sika with which I started this thread, specifically warns that the surfaces must be dry for the filler to stick - whereas the Hippo variety, or CT1 and others, are able to 'dry' or cure, even under salt water.
 
dancrane said:
Interesting that the description of the variety of Sika with which I started this thread, specifically warns that the surfaces must be dry for the filler to stick - whereas the Hippo variety, or CT1 and others, are able to 'dry' or cure, even under salt water.
Click to expand...

It depends on the sealant type. The polyurethanes such as Sikaflex 291 etc, Puraflex 40, Sikaflex EBT must be applied to a dry surface. The hybrid polymer sealants such as CT1 , Stixall and your Hippo sealant can be applied to a wet surface
 
Re coloured Sikaflex etc....

I have used both black and white ones. The great thing about the black stuff is you can always see where it's gone where you didn't want it to.

The white stuff on the other hand lurks and doesn't betray itself until it's got everywhere.
 
dancrane said:
Thanks, but I've been unclear about the purpose - it's not for the Osprey, it's a boat I've been helping with, and there are small untraceable leaks between the gunwale and the rubbing strake. We're hoping that if rain doesn't keep filling the narrow space between them, the leaks may be eliminated.

Interesting that the description of the variety of Sika with which I started this thread, specifically warns that the surfaces must be dry for the filler to stick - whereas the Hippo variety, or CT1 and others, are able to 'dry' or cure, even under salt water.
Click to expand...

I don't know what method you are considering. If it's simply running a bead along the gap... I think you will (a) be messy (b) not seal it 100% (c) end up with moisture trapped behind the seal once it finds a leaky bit and take even longer to dry

To do this... You either need Captain Tolley's, or you need to unfix the rubbing strake, mount it on a fresh bed of sikka (etc).
 
dancrane said:
That "Creeping Crack Cure" looks like impressive stuff, but hopefully I won't need it.

Thanks, all.
Click to expand...

The Tolleys Creeping Crack Cure certainly works - I had a window leak earlier this year, discovered when I left some papers on the chart table - the sealant around the Perspex in the window frame really needs redoing but I tried the Tolleys as a temporary cure and it certainly worked. Wether it's permanent we'll see over winter, I should really do it but from memory it's a messy job and other jobs are more urgent.
 
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