Primers are used to prepare surfaces for paints. Good primers seal surfaces and provides the paint with a better bonding surface.
Paints provide surfaces with a final, smooth layer of protection and colour.
Large surfaces such as walls and ceilings should be painted with water-based paints. Wood surfaces like doors, window frames, skirting and fences, as well as metal surfaces like iron doors and railings should be best painted with solvent-based paints. Paints can be described by the shine they produce when dry. Brushes are made with both Natural bristles and Synthetic bristles. Natural bristles work well with alkyd or oil based paints, but they absorb water so aren't recommended for latex or water based paints.