I am looking to glue discs of acrylic together for my wtc end caps and not sure what to use any ideas.?
Dave
Chloroform (which you can't get anymore) and Dichloromethane were the main glues for acryllic. Dichlor is readily available as "Plastic Weld" which you can buy by the litre on fleabay. Trouble with Plastic Weld is that it has no gap filling properties and if you glue the ends of a sealed container your'e liable to get little tiny cracks in the edges of the acryllic running at right angles to the edge.
These are stress fracture caused as the fumes saturate the the plastic in the closed container, added to this is the chance that the thin Plastc Weld won't give a water tight join.
The solution is fairly simple, firstly you could use a glue called Tensol 12, there other Tensols but this is about the easiest to use. Tensol is a lot gooier (sp?) then PW and as a result fills potential leaks, it also give of slightly less fumes so if you air the job as its setting the stress fractures are reduced considerably. Tensol 12 is also on fleabay.
Or you can make your own! If you put about a eggcup full of Plastic weld in a screw top jar (don't use a plastic eggcup!) and bung in scrap acryllic broken up small it will disolve in the PW and give you a thick liquid which works very much like Tensol, not suprising though as that is how they make Tensol. HTH