Sealant For Laminated Glass Boat Window

[C08]

When new the windows were fixed with rubber seals that worked very well but these seals are not now obtainable. The glass is 6.4mm laminated glass in a u section channel just under 9mm wide so not wide enough to use butyl tape. Glass websites have a number of warnings about the effect of sealants with solvents attacking the film between the glass sheets and causing creeping fogging at the film, similarly water doing a similar thing and the importance of drain holes to avoid the edge sitting in water. I considered Butyl Rubber (Arbomast Autograde Windscreen Sealer) but note that this is part oil based and the reading I have done suggests a Neutral Curing Silicon such as Dow Corning 799, which is for glazing and claims excellent adhesion to glass and aluminium. Any relevant experiences wiith laminated glass seating/sealants etc would be interesting to hear.

 

[Yngmar]

Sabatack 760 XL 1-component high tack glazing MS polymer-based window adhesive: https://www.saba-adhesives.com/en/p/sabatack-760-xl-ht

contains no solvents, isocyanates or silicones

 

[C08]

Sabatack 760 XL 1-component high tack glazing MS polymer-based window adhesive: https://www.saba-adhesives.com/en/p/sabatack-760-xl-ht

Thanks for that link - it looks the real business.

 

[LadyInBed]

I've just done my windows and was recommended nemesis sealant (from Screwfix).
It did a good job
https://www.screwfix.com/p/nemesis-mighty-frame-glazing-sealant-black-290ml/3534j?_requestid=150434

 

[Keith-i]

I would have thought car windscreen sealant would be the right stuff seeing as car screens are all laminated. Contact Dow Corning via their website form for advice. I got a helpful response quite quickly from them.

 

[C08]

I've just done my windows and was recommended nemesis sealant (from Screwfix). It did a good job https://www.screwfix.com/p/nemesis-mighty-frame-glazing-sealant-black-290ml/3534j?_requestid=150434

I had just decided to go with Nemesis, no solvennts, no silicon neutral curing. Seems a bit slow to cure but I will feedback when it has set and been rained on!

 

[Aurai]

Suggest you read the Sikaflex application guide, my eyes were opened to the many variants to contend with. We chose the one suited for us, I.e. In a wood frame! Very happy with the results.

https://ita.sika.com/dms/getdocumen...ika Marine Application Guide 2012_low_low.pdf

 

[vyv_cox]

I recently installed two toughened glass windscreens on the motorsailer. The sealant supplied was a polyurthane very similar in appearance to Sikaflex but the installation pack also included a primer that I suspect is essential.