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#1
06-21-2017, 03:00 AM
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Acrylic....little help??
Is there ANYONE that actually knows how to do acrylic? I have taken the advice of many "experts lately with the same disappointing results. No matter how I prep my edges I'm getting crazing in my welds. Cutting the project apart for the second time tomorrow. It's thick acrylic, 1" sides and 1 1/4"front and back.
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Cheers Gary 604-319-0317 
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#3
06-21-2017, 03:23 PM
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I used to work with it on occasion making helicopter windscreens. I believe crazing is normally caused by stress or overheating. maybe its something to do with the solvent? I know its really important to have flat surfaces. doubt that helps lol
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150 gallon reef mostly softies/lps. 50 gal sump with bubble magnus skimmer/ Led fuge light/refugium/ 1200 return and tunze powerheads. Dual pharoah main tank led.4 pump dosser. 550 gallon stingray tank water drip system 150 bowfront. 75 turtle tank, many others
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#5
06-21-2017, 04:39 PM
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Do you have some details?
I worked with acrylic for a couple years, made a lot of sumps and overflows. I used weld on #4 for just about everything. Let me know what you are building and Ill try to help. The only time I used #40 was to bond acrylic to pvc.
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There's plenty of room for all God's creatures. Right next to the mashed potatoes.
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#6
06-21-2017, 05:52 PM
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Weldon 40 is nice to work with because it's thick and not runny but it's not easy to make clean welds with it.
Something runnier like #4 is probably your better bet for super clean joins, but it's much harder to work with (at least I think so). I think you get your pieces placed together first and applied with pressure, then you take a needle bottle thing and follow it along and the weldon wicks into the join area.
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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