How to join 2 pieces of 1/8 Cast Acrylic Together (Flat joint)

[Belial88]

Hi, I'm having difficulty gluing together 2 sheets of 1/8" cast acrylic. When I use weld-on #3 with a syringe, even on 400 then 600grit sanded edges, they dont bond well. I was wondering if JBweld or weld-on 16 on the backside would be fine.

This is for colored acrylic, it doesnt need to be water tight. I essentially want a single piece of acrylic that has stripes of other colored acrylic running through it, then heat bending it 90*. Im just having difficulty gluing them together.

 

[Dapg8gt]

find the "acrylic fabrication question answered here" thread the new resident expert should be able to help you out.

I personally would try to router the edges clean and clamp them together and use #3. I think its gonna be hard though as the 1/8" is too flexible. You have to have a perfect straight matching . You may be able to use the 16 after initial bond to fill any gaps if there are any but then again im def no expert.

 

[sleepydoc]

If you're sanding the edges you may be inadvertently rounding them, causing the joint to fail. I'd try either routed or sawn edges.