Can I Use Interior Paint Outside?

The answer to this question depends on the paint. If you are using latex paint, it is not recommended that you use it outside because of lightfastness and texture issues. However, oil paints have a more flexible shelf life than other types of interior house painting options such as enamel or acrylic.

The “what will happen if i use interior paint outside” is a question that many people ask. The answer is that it depends on the type of paint and what you are painting.

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When homeowners are upgrading their houses, they are sometimes intimidated by the enormous paint department of home improvement shops. And if you’re working on an outside project, you’ll have even more considerations, such as whether you may use interior paint outdoors. 

It is possible to apply interior paint outside, but it is not encouraged since the paint would fade and decay considerably more quickly. When exposed to the weather, interior paint may easily wash away or break. Interior paint should not be used outside for these reasons. 

You can’t simply pick up any interior paint and put it on your porch or patio’s walls. You should use outdoor paints specifically designed for this reason. Continue reading if you want to learn more about how to pick the proper sort of inside paint for outdoor tasks.


Contents Table of Contents

  • Is it Possible to Use Interior Paint Outside?
  • What Happens If Interior Paint Is Used Outside?
  • What Should You Do If Your Exterior Interior Paint Starts to Fade? 
  • What’s the Difference Between Inside and Outside Paint?
  • Is it Possible to Use Exterior Paint Indoors?
  • In conclusion, do not use interior paint outside.


Is it Possible to Use Interior Paint Outside?

Simply said, interior paint should not be used outdoors. The same way that exterior paint is engineered to endure changes in weather, inside paint is not. 

Interior paint is susceptible to the environment, which may cause it to fade or chip fast. Outside of a protected indoor setting, interior paints likewise have a hard time sticking. Because of their reduced viscosity, interior paints are significantly softer than exterior paints.

The unique ingredients found in exterior paints are not present in inside paints. All of the following situations benefit from the ingredients in exterior paints:

  • resistant to mildew
  • Resistance to cracking and peeling
  • Dirt-resistant.
  • UV protection is provided.
  • Resistant to water

Inside paints, unlike exterior paints, are designed for use on interior surfaces. Although interior paint looks wonderful indoors, the environment outdoors might cause it to fade or chip fast.


What Happens If Interior Paint Is Used Outside?

When you use interior paints outdoors, they will most likely peel and chip. Because the inside paint is not designed to resist lengthy exposure outside of a protected indoor environment, you may notice some yellowing or fading.

You should only use paint that has been properly designated for outdoor usage. If your outdoor project necessitates longer-lasting outcomes than interior paints can deliver, exterior paint is the way to go. 

It’s easy to make the mistake of using interior paints for outdoor projects, particularly if you have leftover interior paint from a prior job and are deciding between indoor and outdoor possibilities at your local hardware shop. 

Interior paints may be utilized in certain instances, however painting specialists do not suggest it. You may use interior paint outside if you can’t get the color you desire in exterior paint for any reason. 

If you apply interior paint outside, however, you need seal it with one to two coats of clear exterior paint sealer. This will guarantee that the inside paint is preserved, and you won’t have to repaint anytime soon. 

The only time interior paint should be used on an outside surface is if your property has inside walls that are visible from the street.

What Should You Do If Your Exterior Interior Paint Starts to Fade? 

If you’ve used interior paint outside and it’s peeling or fading, now is the time to restore it. The affected inside paint will have to be removed. 

It’s crucial not to attempt to touch up interior paint outdoors since the fresh coat of paint you put will fade in the environment. 

There are three easy measures you may take to address the interior paint problems:

  • sand the surface
  • Use an exterior paint primer to prep the area.
  • Re-paint the area with an exterior-grade paint.

You’ll need to re-paint the area with high-quality exterior paint after removing the inside paint and priming it with external primer. 

It’s crucial not to use interior paint on your outdoor furniture due to the rapid degradation caused by:

  • exposure to the sun
  • Rain
  • Wind

If this occurs, you’ll be faced with a costly or time-consuming effort to repair exterior paint that has started to deteriorate.

What’s the Difference Between Inside and Outside Paint?

The components are what distinguishes interior and exterior paint. The majority of interior paint is latex, whereas the majority of external paint is acrylic.

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Exterior paints are made with a number of ingredients to allow them to cling to a variety of surfaces under a variety of weather situations, including:

  • exposure to the sun
  • Variations in temperature during the course of the year
  • Exposure to rain, sleet, and snow
  • Fading
  • Chipping
  • Peeling

Interior paint is less prone to chip or fade on interior walls since they are not exposed to the same elements as outside walls. 

Is it Possible to Use Exterior Paint Indoors?

Indoors, you should never use exterior paint. This is because exterior paint may emit poisonous fumes that have no effect on your health when utilized outside. If you apply exterior paint inside your house, however, the hazardous fumes have nowhere to escape and you will inhale them. 

This is not something you want to take chances with. Use only exterior paint on outdoor surfaces and take the necessary safeguards. 

In conclusion, do not use interior paint outside.

If you’re painting on a surface that will be exposed to the elements, check sure the paint is suitable for outdoor usage. Exterior paint has an unique ingredient that enables it to be used outside without causing problems. 

If you use interior paint outdoors, it will not only fade quicker, but it will also peel and need to be repainted more often than if you used exterior paint. Although exterior paint is normally more expensive, it is well worth the investment.

Check out our can you paint pressure treated wood, can you paint outdoor cushions, and how to paint a fence articles if you want to learn more about outdoor painting.


Interior paint is a type of paint that can be used on the interior surfaces of homes. It is generally made from acrylic, oil, or water-based paints. Interior paint is typically not recommended for exterior use because it does not dry as quickly and does not adhere to the surface well enough. Reference: can i use interior acrylic paint outside.

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