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05-18-2006, 10:29 AM
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#1
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Little Fishy
Join Date: May 2005
Location: NJ
Posts: 175
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Gluing Plexiglass baffles in a glass tank
Anyone have any suggestions on how to glue 3/8 plexiglass baffels to a glass tank ?
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05-18-2006, 12:29 PM
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#2
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Join Date: Mar 2006
Location: spartanburg, south carolina
Posts: 4,703
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Gee, I don't think you can "glue" those two together but you can definitely use silicone to hold them in place. Just make sure you use silicone for aquariums or a silicone without any anti-mildew additives. Hopefully someone else can chime in with more help.
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05-18-2006, 03:49 PM
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#3
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Professor Chaos
Join Date: Apr 2005
Location: Arkham Asylum
Posts: 9,756
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i agree, silicone is your best bet. it may not stick too well to the acrylic but if you get a strip on both sides it should work fine. you might even be able to slide the baffel out later if needed.
__________________
I mix twinkies and ding dongs all the time, in Europe they call it a Dinky -- Homer Simpson
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05-19-2006, 02:39 AM
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#4
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Plankton
Join Date: Apr 2006
Location: swoh
Posts: 29
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silicone is nice to use in low-strength apps, since it is not permanent and is easy to apply
but if you need more strength in your bond, here's a little known nugget:
weld-on 40 bonds acrylic to glass quite well
a few years ago, someone on another site ran a test using epoxy, silicone, weld-on 40, & household goop on seperate samples of acrylic bonded perpendicular to a vertical pane of glass (attached like a shelf to the glass)
all samples were allowed to air-cure, were submerged in saltwater for 4 weeks, then were tested for strength
silicone failed at 2.5 bricks
weld-on 40 failed with 12 bricks (pic attached)
I'll not quote the epoxy or goop results, as their potability may be suspect
I've seen a few other instances of the use of weld-on 40 to bond acrylic/glass, including a recommendation from an "acrylic expert", but this experiment really visualizes (and quantifies) it for you
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05-19-2006, 10:30 AM
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#5
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It can be rebuilt.
Join Date: Jun 2002
Location: Pittsboro, NC
Posts: 19,158
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Dang!!
i am also liking Weld-On 4052. this stuff adheres to all of those other plastics that you need to mess with while playing with aquariums. it bonds, CPC, PVC, and acrylic to each other and themselves very well. great for DIY projects.
G~
__________________
Think Tanker
Friends Don't Let Friends Use Refugiums!
Reef Knowledge Impaired
"J" crowd member.
My Build Thread
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05-19-2006, 10:26 PM
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#6
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Plankton
Join Date: Apr 2006
Location: swoh
Posts: 29
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yeah, I was suprised to see they have a bonding agent to attach acrylic to concrete and certain metals
the possibilities are endless...
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05-27-2006, 11:30 PM
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#7
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Big Fishy
Join Date: Jan 2006
Location: Lawrenceville
Posts: 573
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actually you can glue them together. Home depot sells a glue by 3M thats call "Marine Adhesive". I have used it and It does work pretty well. The only down fall is it takes about 2 full days to cure. I would sugguest using it along with some sillycone. Also Im not too sure if its officially reef safe, but I have used hot glue in my tank with no ill side effects. Just as long as it completly drys before letting it into the water.
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Oceanic 30 Cube, 10 gal sump, 10 gal fuge, 250 watt MH, Mag 7 Return, Coralife Super Skimmer 125, 45 lb LR, DSB, Soon to be all SPS, LPS, Zoa tank.
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05-28-2006, 08:27 AM
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#8
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It can be rebuilt.
Join Date: Jun 2002
Location: Pittsboro, NC
Posts: 19,158
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i have actually found that if you painted the acrylic with Krylon Fusion spray paint it provides a much stronger bond with the silly cone.
not sure it will hold up like the Weld-On 40, but it is a lot stronger than normal silly cone, expecially after a couple months of curing. at this time is when silly cone will start releasing from the acrylic.
G~
__________________
Think Tanker
Friends Don't Let Friends Use Refugiums!
Reef Knowledge Impaired
"J" crowd member.
My Build Thread
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05-28-2006, 01:02 PM
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#9
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Super Moderator
Join Date: Jan 1999
Location: Southern Oregon, Way West of Dimples ;)
Posts: 22,094
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I have had success cutting plexi baffles pretty close tolerence then using a couple dabs of super glue to stabilize then silicone seam on boath sides, works as long as theres water pressure on both sides
__________________
When considering courage in battle, one should remember that there are 2 sides to every conflict.
The heroism of the losing side rarely gets remembered
but we were all husbands and fathers, sons and bros
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05-28-2006, 07:46 PM
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#10
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Nothing to See Here
Join Date: May 2006
Location: snellville ga
Posts: 3
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why not just make the baffles out of glass ?
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