The title says it all. I am working with curved surfaces, so I will need a glue/solvent that isn't too thin, as to avoid it running.
This is the stuff that has worked well for me.
-Kevin
Living the dream.
Since I didn't know what ASA is, I had to google it.
Seems there is a lot of information out there on the subject, some of which might stick.
If I remember correctly, a furan-based solvent with chips of suitable plastic dissolved in it produces an 'expedient' thickened adhesive for this kind of purpose. You'd use a wire applicator or toothpick to apply it, and watch out for 'stringing' if the solvent evaporates a bit too quickly while working.
Technically, you could use methylene chloride (aka old-school paint stripper) but I hate that stuff with a passion and won't recommend it even in tiny quantities with what you might think is adequate ventilation and PPE.
I see references to using straight acetone, and to dissolving ASA instead of ABS or model-kit 'styrene' sprue to make the 'adhesive', but there are caveats to that stuff too.
The one thing to avoid is cyanoacrylate 'super glue' -- supposedly a joint bonding ABS to ASA with it is susceptible to stress cracking as it ages.