Need advice here.. Painted my wall to dark grey and after a month or so, some light grey patches appeared on the surface. Doesn’t look like chalking as I don’t see residue on my hand when I touched it.

How long would it take for a full paint can to dry if the top is left off? Will it dry this way?

I need to remove oil base paint from drywall. Some areas just peel off, others seem to tear off the top layer of drywall. How do I get it all off?

Bedroom walls have been painted over existing wallpaper and you can see the joints through the paint. How do you remove paper and get a smooth wall to repaint?

I have used Minwax Chestnut on a fiberglass door; I haven’t applied a coating of this yet, can I use a lighter stain to lighten the darker stain as it doesn’t match the other Trim and Baseboard in the house

Renovated the entire 2nd floor of my home and need to know what primer to use on freshly skim coated sheetrock. Oil or latex?

I’m a homeowner who hired a painter based on a bid of $650 (10 hrs at $65; a remodeling agency). 16 hours later the bill is $1040, the job is about 3/4 done, and my wife and I ended up doing a substantial amount of work (including four doors) ourselves;

My house color is a barn red and the trim is khaki. Should I paint the cement foundation the khaki or barn red?

I will be painting my kitchen, I have a lovely interior paint to use on my kitchen cupboards. I was wondering, can I mix some type of varnish with the interior paint? I ask as I think this may help to keep it clean (easier to wipe down without wearing