So decided to redecorate a bedroom ourselves.
We removed wallpaper, scrubbed, sanded, cleaned, primed (Zinsser B-I-N White Multi-surface Matt Primer), skimmed (Make Good Plasterboard Jointing, filling & finishing compound) and one coat of primer/undercoat (Dulux Universal White Multi-surface Primer & undercoat). My issue is I have a few areas where I can see 'steps' from where I've skimmed, my fault for not sanding well enough in these areas.
Can I use joint compound again and skim on top of the primer/undercoat OR should I be doing something else? Please help. Go easy on me, I'm a rookie 🙂 learning as I go. Thanks.
Best Answer
Yes you can overcoat the primer with more joint compound.
If you have some left just use that, but if you need to purchase more consider topping mud. Topping mud is made for feathering places like you have and it sands just a bit easier.
In either case standard joint compound or topping mud will work on a primed surface.
Remember to prime the freshly mudded areas or it will absorb the paint and look different.