Plexiglass?
 

I am going to build a new sump. I have a 10g tank and I am wondering if I wanted to use plexiglass would that be ok instead of plate glass? The plexiglass is very think but will the DAP aquarium sealant silicone seal it with the glass?

Thanks guys
Dave

Bah wrong part of forum can anyone move it please sorry :(

Its fine to build your sump out of acrilic(many do) but you cant seal it with silicon, for that you want a acrilic glue. Like weldon. please google weldon # 16 acrilic glue, iv used this stuff and it works great. Your gunna need some help building your sump, pretty advances stuff, i sugjest you spend a good amount of time reaserching and have a good design ready when you plan to build. I highly recemend this website for building acrilic sumps. www.melvesreef.com You can email him and he can help you out, i would sugjest building one exactly like he does.

Nice site thanks for the link =)

I've done a test tank wit weld on 4 and it's very hard.

You should use weld on 2 or 4 to start and then fill cracks with 16 like melev says.

Since i can't get 16 i might just seal mine again with aquarium silicon to be safe.

Whats the differenc between weldon 16 and weldon 2? is it how thick it is?

4 and 3 are like water but 4 dries slower and 16 is in a tube and it's pretty thick.

from what I've read (I've got to repair my sump)...

With 3&4 you've got to cut the pieces and sand (or otherwise remove saw marks from) the edges so that the surfaces to be welded are perfectly flush (no gaps at all) and they dry rather quickly (final curing within 24 hrs)

weldon 16 is in a tube and can be used to weld two pieces that are irregular, however it dries slower so the parts need to be temporarily clamped or otherwise held together while they cure

for instructional videos and tools/equipment/solvents, check out TAP Plastics

I agree with this completely. and i know marc personally, he loves to help!