You might be overkilling with the steamer , but looks typical.
Make sure to clean off the paste as good as you can also-
then prime all with a sealer called Gardz-
then do any repair/ skimming
sand that smooth
reprime mud spots,
2 coats quality paint
yer golden!
Make sure to clean off the paste as good as you can also-
then prime all with a sealer called Gardz-
then do any repair/ skimming
sand that smooth
reprime mud spots,
2 coats quality paint
yer golden!