SCIGRIP 4 10308 Acrylic Solvent Cement, Water-thin, 1/4 Pint Can with Screw-on Cap, Clear: Amazon.com: Industrial & Scientific works well with lexan. I have a friend that gave me scrap from his work, 3 4x3 foot sheets. I've built a few mods with it, and they are holding up well. My daily...