I plan on siliconing 1/4" acrylic baffles into a 20 gal glass sump. The question I have is, do I need to worry about the acrylic expanding and cracking the glass tank? I thought I read that somewhere, but I can't find the thread.
Thanks in advance...
Glass and the acrylic do have different densities but the temp in the fuge would be constant 99% of the time. Unless it has a major temp delta I would say you are fine.
Cut the acrylic 1/8" less than needed and use the silicone to glue it in and seal it. The acrylic will expand as plastics tend to absorb water. 1/16" on each side should be perfect.
Hmm, come to think of it, glass is actaully a liquid
