3DLac: 3D Printing Adhesive Spray
3DLac 3Dprinting adhesive spray is the most convenient way of ensuring your prints stick to glass. Works with most filaments too. Best part? it is water soluble so you can just wash it off every so often. 2 quick squirts on you glass bed is all you will need. No more kapton tape, blue masking tape!
For better ABS and PETG adhesion try Dimafix