I removed carpet from interior room and found cutback over the cement slab, slab is 40yrs old.
I like to paint over the cutback adhesive instead of disrturbing it.
What primer and paint can I use?
California has restrictions on oilbased primers and paints.
Can I just apply paint that is used for regular cement floors?
I would test it for asbestos. You have to get a lab to do this and cost us in DC Metro area $220. If you dont want to do that I hear you can encapsulate it with something called TriSeal http://www.xlbrands.com/category/products/floor-prep/ it does have moisture limitations.
Also if you want to encapsulate it a product called Ardex Feather Finish does that also.