Using primer on a wall or other surface is a great way to ensure long-lasting, professional-looking results.
While paint contains more pigment, primer contains more resin. A resin-based primer helps prepare the surface for painting in many ways. Here's a look at what primer does and why you should consider applying it before painting.
Primer covers dark colors
Priming is an important first step when you plan to paint a wall a lighter color. Primer before painting hides previous colors – even the darkest blues and most saturated reds – and prevents them from showing through the new paint color.
If you plan to use a dark color for wall painting, first apply a darker paint primer like Zinsser Bulls Eye 1-2-3 in gray to better hide the old paint color and improve the coverage of your new paint layer.
Primer blocks stains
Most stains, such as water stains, crayons and markers, lipstick, or nicotine, will show right through the paint. A coat of wall primer seals these types of stains and prevents them from reappearing through your next coat of paint. Advanced paint primers like Zinsser B-I-N Advanced Synthetic Shellac Primer block all types of stains, so you can start your painting with a clean canvas.
Primer requires less paint consumption
Primers are formulated to seal the surface, which means you will need to use less paint. If you tint a quality wall primer like Zinsser Bulls Eye 1-2-3, one coat of primer and one coat of paint are usually all you need for a great-looking finish. Just ask the paint desk staff to tint your primer to the color of your paint. Since a gallon of primer is usually cheaper than a gallon of paint, you can save money by also needing less paint.
Primer allows paint to adhere to various surfaces
If you've ever tried to paint a slippery surface like vinyl or plastic with just paint, chances are it just wouldn't stick. Zinsser primers are formulated to allow paint to adhere to all surfaces, so you can paint anything – even ceramic tiles and laminated cabinets.
Primer helps your paint job last longer
A coat of primer helps prevent cracking, peeling, and blistering of the paint. Also, paint applied over primer retains its original color longer, so you will need to paint less often.
What does spray paint primer do?
Spray paint primer provides similar benefits to wall primer. It helps prevent the original color from showing through your new paint.
Products like Rust-Oleum 2X Ultra Cover Spray Primer also help your topcoat of spray paint apply smoother and last longer. This spray primer can be used on almost any surface, including wood, plastic, and metal, making it ideal for smaller DIY projects.
Another option for metal surfaces is Rust-Oleum Stops Rust Clean Metal Primer, which creates a corrosion-resistant barrier for greater rust protection.
Blocking stains, covering dark colors, and preventing paint from peeling are just some of the ways a coat of primer can lead to a professional-looking paint job. Then, once you've painted, you can enjoy your renewed environment with the satisfaction of knowing you've done the job right.