old oval alum window to glass seal/sealant?

bikedaft

bikedaft

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hustler 35 1973, old style (leaky!) alum fram windows where the frame slpits into two halves

the glass seems to be in a gutter type seal within the aluminium - glass 5mm thick, alum channel 9.5mm. where can i get another sealant strip like that? or has someone done an amazing job with a sealant gun??

thanks
 
well i located the glass within the alum surround with bits cut from an ice cream tub lid, and liberally squeezed in silicone sealant. then sikaflex to alum/grp join. watertight to enthusiastic buckets of water

thanks
 
You may well get the sealing strip from Seals+ Direct http://www.sealsdirect.co.uk/

If you prefer the mastic Sealant route there are many to choose from.

Sikaflex 296 is the Sikaflex specifically for glass glazing

Users guide at http://www.bluemoment.com/downloads/sikaflexusersguide.pdf

marine handbook at http://www.bluemoment.com/downloads/sikaflexmarinehandbook.pdf

A windows specialist will have other specialist products avaialble

Essex Aluminium windows already mentioned

Others include Eagle boat windows http://www.eagleboatwindows.co.uk/ in Lancs

Seaclear, http://www.seaclear.co.uk/ in Maidstone, Kent

and Hadlow Marine, http://hadlo-43547-001.dsvr.co.uk/Pages/Introduction.html in Hadlow Kent
 
One of the problems with the channels is that over time condensation or leaking cause the bottom to corrode through. I had mine rebuilt and the whole channel was filled with the Sikaflex for glass. Of course if I ever have an issue with a window frame then it may be an issue separating the halves again. The frames were sealed to the GRP with bedding tape which had a foam like consistency, solid as well and at 3mm thick easily sealed against any irregularities.

google Hadlow Marine, they have a lot of data on this including some 'how toos'.
 
I resealed one of my windows this year. It is a split aluminium type like yours. I tried seals direct who were very helpful and sent my a sample U shaped rubber strip but unfortunately it didn't fit so I had to use mastic which is going to make it much more difficult to dismantle next time (hopefully not by me). I used PU40 from toolstation which is much cheaper than Sikaflex. I didn't use spacers as it is only 750mm long and I've found that they can be a source of further leaks. Just make sure the glass is central in the recess. I sealed the frame to the GRP with butyl tape from the caravan shop. No leaks so far.
 
cheers for replies - i have another 7 to do

main problem with this window was that half of any rain that hits the mast is curiously diverted down over it by the raised deck around a grab rail extending most of the deck...
 
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