Hi Guys, I just bought 2 years old house. The house is still unfinished just like when it has been handover from the builder. A family with many kids was living in there for 2 years.
I have washed the walls with sugar soap, patching up groves and damages to the walls and I then sand it down.
I would like to seal the plastered walls but I have been told by a painter that i don't need a oil based sealer before painting.
I would like a second opinion. Please advice.