Some preparation work will allow the cedar wood to hold the paint or stain properly. A combination of brushing, washing and sanding with 50-60 sandpaper will prepare the surface of new wood or wood that has been exposed for only a few weeks.
Previous paint and stain finishes on cedar will require more work. Sanding and scrubbing with a bristle brush is most recommended, but in extreme cases wet sandblasting and pressurized water spray may be needed.
Paint for cedar paneling comes in every color from royal blue to white. Alkyd oil-based primers are absorbed easily by the wood and are the best at protecting the surface from water and weathering. Paint with a latex base lasts for many years and stretches or shrinks with the wood as it ages.
Cedar wood receives better protection from solid-color stains than latex or oil-based stains. Acrylic solid-color stains may change the natural hue of the wood but will prevent water penetration. Oil-based stains do not protect the wood from ultraviolet rays as well since the stain partially soaks into the wood.