Thank you for posting your inquiry. For this type of minor cosmetic wall repair project, we would recommend the use of DAP Eclipse Wall Repair Patch. At your convenience, please contact DAP’s Technical Customer Service Department at 888-327-8477 so that we can obtain some additional information from you about your project and to verify that this would be the best repair option.
Is it just a stain or a crack. If it’s a crack it will work if it’s a stain just use a sealer over it like kilz.
I've used it in two different apartments at this point. It depends mostly on how big the holes you are filling are. I only used it to fill in screw\art hanger holes. After applying it would usually dry in an hour or two.
No this is not good for wood. Use bondo.
Yes if done correctly and it’s fully dried.
Yes it can be used any drywall surface.
Yes, just don't overtighten the screws.
It takes too long to get it dry. Over 24 hours but still wet.