This is a very common question asked to paint service providers. Ideally, every painting job requires two coats of paint. However, sometimes people think that using one coat of paint is enough, especially in the interiors, and save some money in the process. While you may save some dollars applying a single coat, it will cost you more money in the long run.
Therefore, every painting job needs that extra coat of paint. Why? Here are our reasons.
- Heed the Paint Producer Instructions
There is a reason why paint cans mention the need for two coats of paint. The most common reason being two coats of paint deliver a smoother and richer finished surface. Further, your paint comes with warranties and to avail the warranty, you need to apply two coats. In fact, there are very few paints in the market that will advise only a single coat. Why? We will see below.
- Same Color, Different Shades
It is logical to want only one coat of paint when painting the same color once again. But know this, first, the old color has probably faded away by this time and second, even the color you want to use has different shades. Did you know, even the white color has multiple shades? So how can one be sure that just one coat will be sufficient? Thus, it is highly probable that if you just apply one coat of paint, the end result will look miserable.
- Color and Sheen Differences
As mentioned before, there are some “one coat” exclusive paints but they pose a big problem for DIY users and professional painters. It is usually assumed that using one-coat coverage paints means no need for primers as they have additional polymer components but surprisingly, most of the one-coat coverage paint labels instruct the user to prime bare and suspect surfaces. Why?
Secondly, one-coat coverage paints fall in the ‘latex’ family category and thus, they are water soluble. However, most of these paints require the use of mineral spirits. Why? Mineral spirits are used with oil-based paints, not the latex ones. Surprising!
Lastly, the one-coat coverage paints leave color and sheen differences. These paints dry faster and thus keeping a wet edge to continue painting evenly is improbable. The wet and dry surface is going to create ugly lap marks and sheen variations. Even a professional painter can’t help it, forget about the DIY user.
- No Full Coverage
Quite simply, single coated paint job becomes useless because most of the color bleeds through the wall. The porous surfaces in the wall soak up all the color and the real color never comes. What’s the point, then, in using single coat paint? In contrast, using a second coat creates a seal of durability and makes it easier to clean the surface. Pinholes won’t occur and the paint will hold against elements, especially painting in Alamo and Walnut Creek and other areas in California where the weather is mostly sunny.
In the end, it is recommended to go for that extra coat of paint than a single one.