polyurethane

I have some decorations that will be going above the tank, close to the water line but not in the tank. I was wanting to seal them since I don’t know what type of paint is on them. One claims to be reef safe. I was going to seal them with either marine polyurethane or 2-part epoxy. I’ve been...

Hey all! I was trying to find some vynl or polyethylene 7/64 ID tubing for my Kamoer X1 pump... but the only stuff i could find that would fit is a micro fuel line... and its Polyurethane. I tried looking up some kind of SDS for this material and all I get is "micro fuel line is manufactured...