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We did the windows on Rocky 3 years ago no screws haven't even looked like moving still as good now as when they were installed. There was a thread on it somewhere but basically you need to get some

Have just finished replacing all windows in my launch (Vindex 350)- front we did glass, side we did with Acrylic. (Have also previously done them on Mercenary which are still hanging in some 10 years

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Im looking at putting some new acrylic windows in shortly. I am planning on using 1.6mm VHB tape around the inside edge and MS35 to bond it. I have a few questions, Do I need to key the acrylic? should i use black out primer? How much product am I likely to use for two windows 2400x300mm?

 

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IMO the best solution is to use Quilosa MS35 adhesive from the Glue Guru here in Auckland. No tapes required. Be careful in this heat, its initial grab is strong, will immediately hold the window in place, and it sets really fast. Windows are a 2 person job, make certain you put them on straight!

I've done a few boats with it, and no leaks, easy install. No mechanical fasteners required.

Oh, and its not expensive, and needs no primers, etchers or anything :-)

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Glasscorp sell the best adhesive for this - it's a Dow Corning product and I think it Dow Corning 925. I did my Lotus windows with it and no screws necessary. Glasscorp also sell glazing tape, which is magic stuff for making the job easier. You have about12mm overlap with the windows and the frames., put the glazing tape around the inside of the frame and simply press the acrylic onto the tape. Sticks really well. Then you can take your time filling the void with the adhesive - which of course if the messy bit! It's definitely worth masking both the frames and the outside of the acrylic.

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Similar to what Alibaba mentioned , we had 2 deck hatches reglazed by a company in Penrose they used Dowsil 795 Structural Glazing Adhesive /Sealant. I heard somewhere that Its also used  to attach windows to skyscrapers.

 

The best thing about it is that seems totally  UV resistant, unlike the polyurethane based compounds, which I have found wanting.

 

https://www.glasscorp.co.nz/product/x_sku/DC795W.html

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Thanks guys, I have purchased 4 tubes of Quilosa MS35, hopefully this will be enough. I am thinking of not using the damming tape around the inside edge and coving it with the quisola the next day instead. I will keep the glue 10mm back from the inside edge. My biggest reservation (having only put windows in using blackout primer in the past) is that if there are parts of the window overlap that are not covered in glue, say little air pockets, that this will show from the outside (through the tinted window). Also seems strange to not have to key the acrylic.

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Have just finished replacing all windows in my launch (Vindex 350)- front we did glass, side we did with Acrylic. (Have also previously done them on Mercenary which are still hanging in some 10 years later!)

Used Dow corning 795 - the stuff is awesome, i wouldnt use anything else having seen others struggle to key, or to handle the UV and heat.
 
 

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