Gunk of choice for window sealing

Poignard said:
But what if the sealant is not exposed to UV, because it is hidden behind a s/s bezel, for example?
Click to expand...
Sure - behind a bezel is well protected. Inside the glazing channel of the frame (which I think is what the OP is referring to) is not, however. The glazing allows UV to the bond surface itself. Thus the special primers for ‘fritting’ (painting) such areas Thinwater mentions.
 
dankilb said:
Sure - behind a bezel is well protected. Inside the glazing channel of the frame (which I think is what the OP is referring to) is not, however. The glazing allows UV to the bond surface itself. Thus the special primers for ‘fritting’ (painting) such areas Thinwater mentions.
Click to expand...
Well that's a relief! Thanks.

My acrylic window panels are set into rebates in the mahogany coachroof sides and the sealant (CT1) is hidden by a s/s bezel.

I took a lot of time doing this job about 10 years ago and I would hate to think I might have to do it again.
 
StUrrock said:
On the CT1 website they claim good UV resistance

How to Seal an Area Exposed to UV Radiation - CT1.
Click to expand...
People’s experience seems to ‘vary’. For instance, reports of teak decks corked with it rubbing off (black) to clothes/feet after a few years.

‘Good’ may not mean a sun-baked marine environment.

Sure it’s fine in its main use (as a sealant/adhesive around fittings).
 
dankilb said:
People’s experience seems to ‘vary’. For instance, reports of teak decks corked with it rubbing off (black) to clothes/feet after a few years.

‘Good’ may not mean a sun-baked marine environment.

Sure it’s fine in its main use (as a sealant/adhesive around fittings).
Click to expand...
You should never cork teak decks with that stuff!
TDS is the standard modern product for teak deck corking. It doesn't rub off
 
Kelpie said:
My old Moody has aluminium window frames, I think they're a pretty common design- outer part, middle, inner. The middle section has a U-channel about 15mm wide, the perspex sits in this needed in some sort of sealant.

Is there some kind of gun applied non setting gunk that I could use for the remaining windows?
Click to expand...

I used Arbo 1096 on my Moody window frames about 14 years ago, still OK. To centralise the new acrylic in the frames, used pieces of string which could be pulled out before sealant set.
 
Kelpie said:
My old Moody has aluminium window frames, I think they're a pretty common design- outer part, middle, inner. The middle section has a U-channel about 15mm wide, the perspex sits in this needed in some sort of sealant.

For sealing the outer part to the cabin top, no question, butyl tape.

But for the channel section, is there something better? I've done one window using the butyl and whilst it worked, it was a real faff and took me the best part of a day, slowly forcing the stuff down into the gap. Weapon of choice turned out to be half a moist clothespeg, so I was working about half an inch at a time.

Is there some kind of gun applied non setting gunk that I could use for the remaining windows?
Click to expand...
Sealed my acrylic glazing to the aluminium hatch frames with Dow Corning 791 silicone weatherproof sealant, as recommended by DOW, from local builders' merchant, 7 years ago and still perfect.

www.solocoastalsailing.co.uk
 
Thanks for all the ideas.
I'm currently in Carriacou, but SWMBO is making a trip to the UK soon so I could possibly get her to bring something back.

Another thought- nobody has mentioned using any sort of tape for this. I was half expecting that there might be a foam rubber tape suitable for the job, which would be easy to use.
 
Kelpie said:
Thanks for all the ideas.
I'm currently in Carriacou, but SWMBO is making a trip to the UK soon so I could possibly get her to bring something back.

Another thought- nobody has mentioned using any sort of tape for this. I was half expecting that there might be a foam rubber tape suitable for the job, which would be easy to use.
Click to expand...
I don't know the exact geometry, but on the US many windows are mounted using 3M VHB tape. Very permanent in the right geometry.

 
Kelpie said:
Thanks for all the ideas.
I'm currently in Carriacou, but SWMBO is making a trip to the UK soon so I could possibly get her to bring something back.

Another thought- nobody has mentioned using any sort of tape for this. I was half expecting that there might be a foam rubber tape suitable for the job, which would be easy to use.
Click to expand...
If you are going back to the UK, we use Geocel Works. Available in different colours and not expensive. Every deck fitting on our boat, the toerail, every window and portlight is bedded with it. We have been using it for all fittings for well over 10 years. It is semi adhesive. We always managed to get it off with a blade.
 
geem said:
If you are going back to the UK, we use Geocel Works. Available in different colours and not expensive. Every deck fitting on our boat, the toerail, every window and portlight is bedded with it. We have been using it for all fittings for well over 10 years. It is semi adhesive. We always managed to get it off with a blade.
Click to expand...
Would you anticipate any issues bringing it back through customs in Grenada?
I've heard that it's alright if things are obviously used. But clearly a sealed tube is not used.
It seems daft to worry about it but a few people on the various Facebook groups have been warning about trying to 'sneak' anything through without declaring it.
 
Kelpie said:
Would you anticipate any issues bringing it back through customs in Grenada?
I've heard that it's alright if things are obviously used. But clearly a sealed tube is not used.
It seems daft to worry about it but a few people on the various Facebook groups have been warning about trying to 'sneak' anything through without declaring it.
Click to expand...
We normally bring a suitcase full of stuff in to Curacao or Antigua. Never been stopped if you look like a holidaymaker
 
geem said:
If you are going back to the UK, we use Geocel Works. Available in different colours and not expensive. Every deck fitting on our boat, the toerail, every window and portlight is bedded with it. We have been using it for all fittings for well over 10 years. It is semi adhesive. We always managed to get it off with a blade.
Click to expand...
Would you anticipate any issues bringing it back through customs in Grenada?
I've heard that it's alright if things are obviously used. But clearly a sealed tube is not used.
It seems daft to worry about it but a few people on the various Facebook groups have been warning about trying to 'sneak' anything through without declaring it.
 
When I was fitting thee windows in the wheel house of my boat I used neoprene foam rubber stuck to the glass of the toughen window that covered both sides of the window an inner frame was then fitted around the windows with foam rubber under to stop any sharp edged breaking the toughtened galss.

The cabin aluminium frame opening port lights were also fitted with foam rubber

If sealing around any fittings like in the video I push the sealant nozzle ensure the gap is filled and to smooth the sealant in one action.

No smoothing with finger needed
 
You must log in or register to reply here.

Share this page

Top