Craftics #33 Glue
$3.95
Craftics Thickened Cement #33, 1.5-oz tube. Fast-setting high-strength, medium-bodied solvent cement. Bonds acrylics, Rigid PVC, styrene, butyrate, and polycarbonate to themselves and each other. As well as other plastics and porous surfaces. Fills small gaps and dries clear.
This is the best adhesive you can use for assembling multi-part acrylic markers.
Will not "fog" acrylic like thin CA can.