Bimini Babe 0 Posted February 12, 2012 Share Posted February 12, 2012 Hi there resident experts... anyone know how much crazing affects the strength of boat windows? I've got one hatch in particular that is very crazed, and the beginnings of crazing on my cabintop windows. I'll be taking the boat offshore in a few months and would like to know if it would be prudent to replace the crazed windows, or if it doesn't affect strength too much can I get away with it? I'll be taking storm covers obviously, but prevention is better than cure as they say. Link to post Share on other sites
Guest Posted February 12, 2012 Share Posted February 12, 2012 When i replaced windows on pelagian 4 years ago two of my larger windows were crazed when removing all window it required one on the inside pushing the windows out and one on the out side with a leaver bar, All i can say is the crazed windows split in two very easily the others came out in one, I replaced again with polycarbinate, but the next time i do them it will be in glass just seems to be less up keep Kurt Link to post Share on other sites
Bimini Babe 0 Posted February 12, 2012 Author Share Posted February 12, 2012 What sort of up-keep does polycarb need? I've got a glass hatch up front that has a big crack in it (thanks to an intelligently placed brass deck fitting of no discernible purpose... ) that I was thinking of replacing with polycarb. Link to post Share on other sites
rigger 47 Posted February 12, 2012 Share Posted February 12, 2012 if looking at windows take some time and read through viewtopic.php?f=6&t=11389 Link to post Share on other sites
Guest Posted February 13, 2012 Share Posted February 13, 2012 I can only talk from my own expirence, I am not a boat builder, i have found the poly carbinate has gone cloudy and requires us to polish oftern in order to see though it, Also as poly carb ages it loses it strengh kurt Link to post Share on other sites
Fogg 427 Posted February 13, 2012 Share Posted February 13, 2012 AC's cabin windows were replaced a couple of seasons ago using glass, which was the boatbuilder's recommendation. Looks great and holding up very well. Link to post Share on other sites
wheels 543 Posted February 13, 2012 Share Posted February 13, 2012 Polycarb loses 50% of it's strength in 12months in high UV area's, like direct Sunlight. You can get Polycarb with a special coating to protect from UV, but I don't know what it is like for scratch resistance. Acrylic (perspex) has a lot more scratch resistance and should last about 10yrs before it starts to craze like that again. Tempered Glass is heavier, but that may not be an issue. It is extrememly strong and remains clear and scratch resistant. But somewhat expensive. Although so is Polycarb. Toughend Glass is 10x stronger that ordinary glass. So 10mm Toughened is equal to 100mm thick ordinary glass. So it takes a bit to break it. Link to post Share on other sites
Guest Posted February 13, 2012 Share Posted February 13, 2012 I'll be taking the boat offshore in a few months and would like to know if it would be prudent to replace the crazed windows In one word - Yes. It's a big wide ocean and if it goes bad on you, which it easily can, do you want to be sitting there thinking 'Oh crap, I knew I should have....'. Besides new clear windows makes it easier for you to perv on those hunky beach boys............... and suss just who or what Mr BB is looking at, which probably won't be the engine tightly packed into that neighbouring 3.5hp Mercury outboard Link to post Share on other sites
Kiteroa 8 Posted February 13, 2012 Share Posted February 13, 2012 I had crazed poly windows on WT and they were amazingly brittle and came out in a few bits. Gone to 5mm glass now and i'm much happier. $395 from Metro Glass on Rosebank rd. But if you go to Metro, you have to explain exactly what you're doing with them and what level of finish you want on the edges, or they're rough as guts! Link to post Share on other sites
Bimini Babe 0 Posted February 13, 2012 Author Share Posted February 13, 2012 Thanks for the responses guys, and particularly KM for the implication that I am anything other than EVERTHING Mr BB will ever need to look at. Cheers. Link to post Share on other sites
Megwyn 2 Posted February 13, 2012 Share Posted February 13, 2012 Thanks for the responses guys, and particularly KM for the implication that I am anything other than EVERTHING Mr BB will ever need to look at. Cheers. Oh BB, you know how guys are Link to post Share on other sites
Guest Posted February 14, 2012 Share Posted February 14, 2012 Thanks for the responses guys, and particularly KM for the implication that I am anything other than EVERTHING Mr BB will ever need to look at. Cheers. Oh BB, you know how guys are No argument with the pair of you from me. A lot of the time I'm very happy to be just a shallow male Link to post Share on other sites
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