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#1 Myjane

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Posted 02 May 2017 - 09:38 PM

Hi replacing a mates yacht windows , the old perspecs and ply frame over type dating back to the 60s going to do flush fit no frames into the rebates , things I need are glass or acrylic contacts , the double sided rubber material ,and the type of calking used , I here Dow caulking 795 is the one and idears
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#2 island time

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Posted 02 May 2017 - 10:40 PM

Yep, 

Acrylic Creations | Acrylic fabrication specialists, Auckland for the windows, and  QUILOSA MS35 

from the Glue Guru on North Shore for the adhesive. You'll need to clean the frame with isopropol alcohol , both the ply side and the Acrylic side. The adhesive is strong and fast grab - easier if you can get someone to help you press them into the frames.


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#3 Knot Me... maybe

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Posted 18 August 2017 - 12:19 PM

The Acrylic Creations dude, a nice bloke, says he only uses a Dow Corning silicone he gets from Smith and Smith in Albany. Lots have used the MS35. I got some MS35 from the Glue Guru and noticed they also have Dow Corning silicones. Colin, the Acrylic dude, didn't know much about MS35 so didn't have an opinion on that one.

 

To anyone who has used the MS35, was the fast tack time a problem?

 

Tacks off in 15 mins it says so that doesn't leave lots of time.


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#4 island time

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Posted 18 August 2017 - 07:25 PM

Nope, not a problem, it actually helps IMO. But, for large, long windows, you need 2 or more people to make certain the windows are placed correctly and pressed into/onto the frames easily. Have plenty of rags and isopropal so you can clean up around the acrylic if you make a mess!
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#5 Knot Me... maybe

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Posted 19 August 2017 - 10:09 AM

Thanks IT.

 

I'm going to dry fit this weekend, which will mean building a jig to position and hold, then whack them in next week after sailing.


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#6 Myjane

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Posted 19 August 2017 - 10:14 AM

Well I did the windows on my mates boat used all the materials said , looks good , but the caulking product I don't know , the Dow 795 , you can't paint it , it's soft , and once the window is in , days later you can move it in the opening , where's MS is harder , sticks well to the window and is paint able And the Dow we had a leek in one corner that baffled us as the was no sign of anything , the glass was treated first many times with there product , rubbed the stuff in many times around the perimeter , the rebates sealed , I thought it would be better ,
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#7 raz88

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Posted 20 August 2017 - 11:08 PM

Can also use mulford plastics behind Silvia park for the acrylic, but they'll only supply square/rectangular panels that you then have to get into shape yourself. Cuts easily enough with a jigsaw and tidy's up with a sander though.
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#8 Zozza

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Posted 21 August 2017 - 08:03 AM

Well I did the windows on my mates boat used all the materials said , looks good , but the caulking product I don't know , the Dow 795 , you can't paint it , it's soft , and once the window is in , days later you can move it in the opening , where's MS is harder , sticks well to the window and is paint able And the Dow we had a leek in one corner that baffled us as the was no sign of anything , the glass was treated first many times with there product , rubbed the stuff in many times around the perimeter , the rebates sealed , I thought it would be better ,

 
I "think" (I am far, far, far x 100 from an 'expert') that the Dow 795 can take days, if not a few weeks to fully 'set' in cold weather.  That may explain why you could move it days later?
I am planning on using Dow 795 to bed new acrylic windows - after looking at prices of new alum or ss ports! Sheesh!  I can get a new windlass from KM for the cost of 4-6 fancy port lights!!!

I will get the fancy ports when I can afford it - for now acrylic glued to the cabins sides with no frames will have to do. And the Dow 795 should be easy to remove when I do decide to go fancy - I have no idea about IT's MS35 - other than sounding liking a Mexican Gang, I am sure it is good stuff, though like KM the fast set time does worry me a bit, even though IT says no to worry.


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#9 Knot Me... maybe

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Posted 21 August 2017 - 08:15 AM

The MS35 has a 15min working time, 30min tack time but does take a few days to fully cure. I would expect it isn't that much difference than the silicone. The MS has a higher 'glue' type content and as I can't rebate I'm glued to the outside hence the more stick for me the better.


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#10 Zozza

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Posted 21 August 2017 - 08:27 AM

The MS35 has a 15min working time, 30min tack time but does take a few days to fully cure. I would expect it isn't that much difference than the silicone. The MS has a higher 'glue' type content and as I can't rebate I'm glued to the outside hence the more stick for me the better.

 

I will be interested in seeing the end result - make sure to post pics when they are in, or will have a look myself next time I am over your way.

 

As an addendum to my previous post  - I can get six tinted, radiused / rounded, acrylic windows in the 10mm thickness I want for significantly less than the cost of ONE alum or ss portlight.   Unbelievable. It really is the way to go if you are on a budget.


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