I need to glue two pieces of acrylic together, flat surface to flat surface. The interface should be as clear as possible.
So, naturally, I’ve got Weld-on 3 solvent adhesive. However, in my tests I get quite a lot of visible artifacts in the glue interface – not crazing, but rather ripples, and what appear to be tiny lines due to variations in solvent evaporation rate.
…um, anyone got tips on gluing flat surfaces to each other in clear acrylic? Would something like Weld-on 16 help? I suspect that at least part of the problem here is that with Weld-on 3 it’s nearly impossible (for me) to deposit exactly the same amount of solvent everywhere, leading to differences in evaporation rate, leading to visible artifacts.
I don’t need the joint to be optically pure, but I do want to avoid artifacts that are visible unaided.