Planted Tank Enthusiast
Join Date: Apr 2009
Location: Alberta, Canada
Polycarbonate can be worked just like acrylic.
Methylene chloride is a solvent, not a glue. It temporarily dissolves the plastic so it can fuse together then evaporates, leaving no residue. The plastic resolidifies as a single piece. It has the same viscosity as water and needs to be wicked into the joint. The edges need to be smooth and are generally finished with a router.
Thicker adhesives are generally just a solvent mixed with the plastic and are both ugly and weak.
Some newer silicone adhesives can bond to acrylic and polycarbonate but traditionally they are not recommended for plastics.
Polycarbonate is not not normally used for aquariums as it both yellows over time and releases BPA. While yellowing is a purely cosmetic problem, BPA is considered by the FDA to be a possible hazard. I do not know if it would be a problem for fish, but I'd expect the concentrations of BPA in a polycarbonate aquarium to be much higher than what a person might ingest drinking from a water bottle.
You can no longer buy polycarbonate water bottles due to safety concerns.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.