othercents;94173 said:
Using anything other than weld-on on acrylic will cause it to leak or fall off especially when you have pvc parts that might move when performing maintenance. I also noticed that maybe the parts are not exactly the same sizes. If that is true then you will need some of the thicker weldon, so you can fill the seams better. I only use silicon for acrylic if I'm putting acrylic into a glass sump, and even then I have to be careful not to cause too much pressure against the acrylic when filling the water that it comes loose from the silicon.
I have weld-on #3 if you want to borrow it for this project. However you probably need weld-on #16 if you have to fill gaps, or a mixture of weld-on #3 and acrylic shavings to make a paste.
I have weld-on #3 if you want to borrow it for this project. However you probably need weld-on #16 if you have to fill gaps, or a mixture of weld-on #3 and acrylic shavings to make a paste.