Residential Painting Boston MA: Why And When To Use A Primer.

As a painting contractor in Boston MA for some years now, I often come across the following question.

Is the primer really necessary?

To answer this question, we must define the role of this primer from the outset.

The primer, commonly known as “base coat”, serves as a bond to the finishing coats. In addition, it also serves as a transition layer.

So, does a 2 in 1 paint perform the same as a primer + coat of paint?

For the sake of efficiency, you might be inclined to using 2 in 1 product –combines the primer and the paint. In a context where the only criterion is efficiency, this would work very well.
These combined products would be ideal for covering an already painted surface more effectively.
This product guarantees the hiding power for a better transition.

However, for more specific cases, for example for new surfaces, already painted surfaces, surfaces where many repairs have been carried out, to get the best coverage, consider using a separate primer and paint.

2 in 1 paints have a higher hiding power thanks to their included primer but does not offer the sealing aspect of a primer.

The transition between Oil and Water

As you may already know, applying a water-based paint in surfaces previous painted with oil paint is a tall order. To make things easier, apply an oil-based primer on the surface before transitioning to water-based paint.
Applying a water-based paint directly on a surface previously painted with oil-based paint often leads to;
• The appearance of bubbles
• Premature cracking of the finish
• Chipping of the topcoat

In What Context Should A Base Coat Be Applied?

In our opinion, it would be preferable to apply a primer when there have been many repairs on the surface. In addition, different surfaces and different materials of repair and renovation require very specific primers.
Generally, here are some of the situations that can call for the use of a primer;

• Repairs and plaster additions
• Highly glossy surfaces
• Very porous surfaces (to seal well and have a nice uniform finish)
• Sharp paint color transitions
• Dirty (nicotine) or problematic surfaces (water stains or molds)
• New wood (knots)
• The transition between oil-based paint and water-based paint

We recommend applying a primer either on surfaces where many repairs have been made, on highly glossy surfaces, on porous surfaces or on surfaces with a color intensity difference between the old and the new coat (e.g., dark walls you would like to paint off-white).

Overall, to guarantee optimal adhesion of topcoats, whether, on dirty or problematic surfaces, it is important to apply an adequate primer. Thus, the following table summarizes the different products that are recommended depending on the type of surface and project.

And From a Time and Money Saving Point Of View

We can see that the 2-in-1 paint and primer cost a little more. On the other hand, the application of a so-called 2-in-1 paint would effectively save time and money.

However, in a more demanding context, it is advisable and above all more economical to use a separate paint and primer –this offers a high level of hiding power, superior adhesion, and better sealing power.

Book a Free Estimate.

Staining or painting your home can be overwhelming if you don’t have the skills, experience, and tools.

At Total Pro Painters, we have years of experience in exterior and interior home painting and staining, and we can help.
We’re currently serving Boston Massachusetts homeowners.

If you would love to give us a try, call us today at (774) 509-0345 for a FREE estimate!

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