Bonding with MEK

A. Hi Lizzet,

As a 'fabricator' we only used the appropriate cements for individual and only corrosion resistant plastics.

Yes, I know that MEK will also bond to PVC (somewhat but not nearly as well as THF)and and would imagine, too, that some type of bond might be acquired with acrylic ... but as far as Polycarbonate is concerned, no experience, it was to us not a very corrosion resistant plastic like PVC, PP etc. and anyhow we nearly always welded thermoplastics.

Re 'heat' ... ah, you may have a point. What can occur, will occur, is that the MEK will evaporate VERY quickly. Why don't you use the PVC cementing technique of a precoat with MEK solvent followed immediately by some PROPER ABS cement (i.e., some ABS mixed with MEK just like the commercial cement)

You might garner an idea or two by looking at the finishing com 'library' on cementing PVC.

You didn't say just what parts you are cementing ... but if you have (even miniscule) gaps, then the pure MEK by itself would probably be nbg, especially on a hot day ... but the ABS cement would be good or far, far better.

Re cyclohexanone, no idea at all! We would never, ever use it. Re curing time ... surely that depends on two things. l. The thinness of the materials being cemented 2) the presence of gaps necessitating some 'filler' material. Probably overnight at r.t. would be OK.

I hope that the above is of some help to you.