GE SILLICONE II vs PLEXI GLASS

[n.mayes@hotmail.com]

Just wondering what else I can use besides GE SILICONE II on plexi glass…..Ge sil does not bond to plexi glass and comes right off….I am looking to make something water tight and non toxic. Now im stuck with a big problem, any advice would be most greatly appreciated.

[Sharkdude]

check a local plastic/acrylic supplier for weld-on products to make water tight acrylic projects. weld-on 16 is thick and crude, but sometimes is what it takes. I think weld-on 40 is thin and runny, but will make a nice seam and bond. weld-on is not a glue, it bonds acyrlic at the molecular level.

try a google search on 'diy acrylic' or similar. I have some experience from small aquarium projects, but I'm no expert

[ubstrong]

am working on my 2nd viv. making it acrylic all around to save weight. Didn't know silicone won't stick to plex. am I going to have trouble. ?

[Sharkdude]

lots of diy acrylic articles online
Aquaria Central > DIY > Working with Acrylic
Tips On Working with Acrylic by Jon Garner - Reefkeeping.com
Do It Yourself Aquarium Projects

[n.mayes@hotmail.com]

Originally Posted by ubstrong

am working on my 2nd viv. making it acrylic all around to save weight. Didn't know silicone won't stick to plex. am I going to have trouble. ?

I think you might, mine will not stick what so ever it peels right off and i know im using the right sillicone that everyone else use but it must not work on acrylic. I found acrylic sealent at home depot but not sure if it is CHEMICAL SAFE. (IT WAS BY THE PLEXI GLASS SECTION)

[cruziohyla craspedopus]

Another very helpful site is

Geothermal Aquaculture Research Foundation Home Page

Look under aquarium construction tab and the DIY Custom Tank Building link. They walk you through everything - just remember they are making aquariums so all plexiglas is a min 1/2" thick. 1/4" is probably fine for a vivarium.

[rsfrid]

Check TAP Plastics Adhesives, Glues & Sealants: TAP Plastics