Acrylic welding with Methylene Chloride

[SeaHorse_Fanatic]

Originally Posted by Aquattro

Ya, as long as you don't use it underwater, you're fine. Not sure that there is anything you could use in it's place. I've built skimmers and reactors for years with it, and acrylic tanks are built with it. I'm guessing guy at shop has been sniffing it

Or covering his company's butt in case something happens, he can claim that he told you before that it was NOT "reef-safe". I've used weld-on and never had a contamination issue.