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Paint vs. Primer and can Primer be used as the finish Coat of Paint?

A friend asked me a question about primer that I had never thought about. Can you use primer as paint? In other words, can primer be the final coat of paint on a furniture piece? I was giving him pointers on how to refinish laminate cabinets, so I of course told him to use primer first.  After the primer dried, he liked the finish so much he didn’t want to paint over it. Can primer be used as the finish coat of paint? I had to think about this one and do a little research and I’ve outlined my conclusion below. I figured if he was asking, someone else has probably asked or wanted to know this too. I’ve outlined all my thoughts below about paint vs. primer and can primer be used as the finish coat of paint.

Paint vs. Primer and can primer be used as the finish coat of paint

Let’s talk about primer vs. paint first. Even though they both seem similar, they have different purposes.

Primer contains resins that seal to most surfaces, even porous ones, and provides a bond. This enables you to paint surfaces that would not adhere with regular paint.

Paint on the other hand has what they call “pigments” which provides color and also durability to fight the elements.

Since primer’s function is mainly to bond and cover porous surfaces, it is not made to withstand elements like paint. Because of this, if you leave primer without a top coat (or paint) it will deteriorate and break down, probably in a chalk like form.

Looking for more painting tips? Maybe you want a little help choosing the right type of paint. You also might want to know if you really need to prime furniture before painting it.

Can paint be used without primer?

Yes, if the surface is smooth (non porous) and will allow the paint to adhere easily.

Can primer be used as the finish coat of paint?

My opinion is simply No.

This doesn’t mean you have to apply paint over it, but you do need to seal it in some form or fashion.

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A quick tip; since most primers are white or gray, I would suggest using a poly acrylic top coat and NOT a poly urethane top coat. The urethane family of top coats yellow with time. This is ok if you are using it to cover wood with a yellow or red tone, but if you are covering a white or lighter surface, you don’t want any yellowing over time.

I’ve seen this a few times when people paint kitchen cabinets a lighter or white color. They seal it with poly urethane because historically it was the strongest and most durable top coat. But a few years or so down the road you can see a hint of yellow on their bright white cabinets. This is more apparent in an area that sees a lot of sun.

I’ve shared all about how to seal furniture or wood for high traffic use in another post if you’re interested.

Paint vs. Primer

  • Use primer when you’re painting a porous surface or a surface that most paint won’t adhere to.  Also use primer when you need to cover a dark color with a lighter one.
  • Always cover primer with a top coat of sealer or paint.
  • You don’t always have to use primer before paint.
  • Primer and paint have different purposes, make sure you are using it right.
  • Use a poly acrylic top coat when painting over a white or lighter color

Simply put;

You cannot use primer as a final coat of paint

Paint vs. Primer and can primer be used as the finish coat of paint

I hope this post has answered some question for you regarding primer and paint and when to use them. As always, if you have any questions, don’t hesitate to drop them below.

Thanks for stopping by,

Lindsey**

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George Smith

Sunday 14th of June 2020

That was my exact question! Thank you.

dghgator

Wednesday 12th of February 2020

Thanks so much. I too loved the look of my tinted primer inside my kitchen cabinets. I was tempted to skip the paint but your post made perfect sense and set me straight.

[email protected]

Wednesday 12th of February 2020

Great! Glad I could be of help. Thanks for stopping by.

Tippi

Friday 25th of October 2019

What do recommend to use as top coat if the tinted primer is serving as the final color/coat?

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Saturday 26th of October 2019

It really depends on what you are painting. That being said, one of my favorite top coats for MOST surfaces is this: https://amzn.to/3486YZp

William B Layton

Friday 22nd of March 2019

Thanks for the insight. I have 30 beehives I'll be painting tomorrow and now I know why I need to paint over primer.

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Friday 22nd of March 2019

Glad I could be of help! Good luck!

Terry

Saturday 16th of February 2019

Primer can be tinted with pigment to become a desired color. And if the surface painted only with primer is indoors, what would make it break down if you didn’t put a top coat on it?

Hobcy

Saturday 22nd of June 2019

I agree as I have used tinted primer and it went on really well and lasted as long or longer than regular paint. The primers like Kilz latex are thicker and cover better than most paints.

[email protected]

Monday 18th of February 2019

Since primer isn't meant to be a top coat, It's not formulated to withstand any cleaner or anything used on top of it. I say that, but I'm no primer specialist. I would definitely reach out to the primer manufacturer if you have any questions. I hope this helps!