Can Interior Paint Be Used Outside?

It’s a common question that many homeowners face: can I use interior paint on the exterior of my home? The answer, as with most things in life, is not so simple. There are a few factors to consider when making this decision, and it ultimately depends on the specific paint product you choose and the climate in which you live.

Some colors and finishes of paint will change when you use them outside, like the finish on a car. The surface might be rougher and more porous if you were painting outside.

Paints with low VOCs (Volatile Organic Compounds) or no VOCs work best for outdoor projects because they contain fewer chemical additives that can cause problems outdoors.

Let’s take a closer look at both indoor and outdoor paints to see which ones are best suited for your project.

What is Interior Paint?

Interior paint is made specifically for use indoors, and its ingredients are much milder than outdoor paints. Because indoor environments are much different than what exterior paint you use. A lot of these paints use binders that are mildew resistant.

Interior paint has plenty of options available when it comes to color pigments. Colors like pastels and deep purples are great for living rooms, while bright yellows or darker colors you can find in kitchens and dining rooms.

What is Exterior Paint?

Exterior paints are made for outside use, so their ingredients tend to be much stronger than interior paints. Paint manufacturers use binders in their exterior paint to prevent fading when exposed to sunlight or other weather conditions.

Additionally, the color pigments that you can find in exterior paints tend to be less vibrant and more long-lasting. For example, a bright teal exterior paint will fade into a lighter green, whereas a pastel interior color will likely stay the same hue.

Can Interior Paint be Used Outside?

Interior paint can be used outside

Interior paint is made to withstand a variety of surfaces and conditions. The only difference between indoor and outdoor paints is the binder company uses with the paint’s pigments. The most common are oil-based paints, which are more resistant to fading when you expose it to UV rays.


Outdoor paints tend to have a stronger binder mixed into the base, giving them a glossier appearance and making them harder to chip. If you’re planning on using interior paint outside, you might want to make some adjustments like thinning it out with water (you probably don’t want to mess with the base), but otherwise, it should work just fine.

What happens when you use interior paint outside/ how long will interior paint last outside?

There is no appropriate exact answer to the question of how long does interior paint last outside. The lifespan of interior paint, when you use it outdoors, will depend on a few factors, such as the climate and the type of paint that you use. However, it is likely to last for a shorter amount of time than exterior paint.

This is because the exterior paint has special additives to help protect against weather damage. Paint made for indoor use is not intended for outdoor use, so it may not provide as much protection.

If you were to use interior paint outside, it likely would not last very long. Mold and mildew are common problems in indoor environments, which is why interior paint contains mildew-resistant ingredients.

When these ingredients are exposed to sunlight and other elements outdoors, they are not as effective in protecting the paint. As a result, the paint you can peel or flake off the surface.

Interior paints are not designed to withstand wind or moisture problems, which can lead to issues down the road. For example, the painted surface might start chipping away after being exposed to rain for a long time.

Another issue is that the paint traps moisture beneath it and can lead to mould or mildew growths.

There’s nothing wrong with using interior paint outside, but you need to apply it correctly.

Best way to use interior paint outside/ can you use interior paint on exterior wall?

Now that you’ve learned what happens if you use interior paint outdoors, here are some tips on how to properly use it in this manner:

  1. Make sure the surface is dry and clean. If there’s any dirt or debris on the wall, it won’t allow the paint to stick.
  2. Prepare the surface by applying a primer made specifically for exterior painting.
  3. Apply two coats of your chosen interior paint to get the desired look. This is because the first layer of paint will soak into the wall, whereas the second layer helps to protect it.

So that’s pretty much about using interior paint outside, making interior paint into exterior paint. You’ll see how easy it is to do so and the number of options you have when it comes to colors.

If you’re itching for something new or want to refurbish an old exterior wall, try adding a coat of interior paint. You never know – you can breathe new life into that dull old surface.

How to Make Interior Paint into Exterior Paint?

We learned the answer can you turn interior paint into an exterior paint. Now we have a new question: how to turn interior paint into exterior paint?

The answer is simple – If you want to make your interior paintwork outside, you’ll need to add a few ingredients.

One of the essential ingredients in exterior paint is latex, which helps the paint adhere better to surfaces. Another ingredient you’ll need is titanium dioxide, which helps to reflect the sun’s UV rays.

You can also add pigment to your paint to give it a brighter color. If you’re using oil-based paint, adding a bit of acrylic will help it to adhere better to surfaces.

Once you’ve added all these ingredients, your interior paint is ready for use outdoors.

Can you use Interior Paint on Exterior Door?

Who doesn’t love the look of freshly painted doors? A pop of color against crisp white trim can make a house shine. ? You can use interior paint on exterior doors by following these steps. Let’s learn the steps in detail.

Step 1 – Priming the Door. When using interior paint on exterior doors, you should prime the door first. This will create an extra layer that helps protect your door from the elements. If you are painting a door divided into panels, make sure to replace any hardware before priming.

Step 2 – Minding the Weather. Before painting your door, make sure that it is dry outside. This will help you avoid dealing with any humidity problems later on. You should also be aware of any wind or precipitation that might affect how your paint starts to look once it dries. You can reduce this risk by using finishing paint with a high sheen.

Step 3 – Painting the Door. Using a paint sprayer, you should apply one or two coats of interior paint to your exterior door. Let the first coat dry for about an hour before applying the second coat. If the paint starts to dry too quickly, you should use a heat gun or hairdryer to slow down the process. In addition, you should also be aware that outdoor temperatures may affect how your paint dries.

Step 4 – Using Extra Protection. While using interior paints on exterior doors will help them last longer, there are some things that you can do to make them even stronger. For instance, you can try applying an exterior varnish at the end of the process. This will help give your door extra strength, but it should wear off after six months.

Step 5 – Maintaining Your Door. If you want to make sure that your interior paint on exterior doors lasts as long as possible, you should sand and refinish it every three years. You can do this on your own or pay a professional to do you.

Paint Tips:

When you’re painting your space, it’s always best to think about what kind of environment the room you are using for. If you plan on spending a lot of time in the room, choose colors that make you feel at ease and relaxed. On the other hand, in rooms where you’ll entertain guests, you can benefit from brighter hues that make your visitors pop.

Ultimately, your surroundings should always match how you want them to feel. If you’re looking for a refresher on choosing an interior paint color, take a look at this blog post. You’ll be sure to find inspiration!

Can you use Exterior Paint Indoors?

The answer to can you use exterior paint on indoor walls is no, but why?

can you use exterior paint indoors

You should always avoid painting your interior walls with an exterior product. Interior paints dry more quickly than exterior ones, and the two may react differently to temperature changes.

Exterior paint has a lower vapor permeability than some other types of paint. This means that it absorbs more vapors into the wall, leading to poor indoor air quality. It can also cause drywall problems like bubbling or cracking later on.

Moreover, if you change your mind about the color, it is more challenging to repaint once you’ve used exterior paint.

If you live in a region with low humidity, exterior paint is probably your best choice for interior walls because it will stand up better to the moisture inside your house and won’t dry out and crack as easily. You can apply interior paint, but understand that it may not last as long or look as crisp.

If you have already used exterior paint inside, you may be wondering what to do. The main difference between interior and exterior paints is that exterior paints are made to withstand the elements, while interior paints are not. Exterior paints contain more pigments and binders than interior paints, which helps them resist fading, cracking, and chipping in extreme weather conditions.

Can you use Latex Exterior Paint Inside?

The answer is yes. But before this, we need to know what is the difference between interior and exterior paints and which one you should use for which surface.

For instance, you might want to paint the interior of your house with outdoor paint, so it’s easier to clean. You might want to use outdoor paint on your interior walls. Or perhaps you’re about to sell your home and think this type of paint will help attract buyers.

You should know that there are indoor and outdoor versions of latex paints, which you can use interchangeably on most surfaces.

Interior paints are thinner and flatter, covering your surface without dripping or showing brush strokes. Still, usually, exterior paints contain more pigment and are thicker because they have to stand up to exposure to sunlight. You should always follow the paint manufacturer’s instructions for whichever type of paint you’re using.

What is the base in paint and how does it relate to exterior vs interior paint?

The main ingredient that makes up paint is called a “binder”. The binder holds all the pigments together. You can use different binders in different types of paint. The most common binder for interior paints is usually an alkyd or acrylic resin, while exterior paints will use a modified (thinner) version of the resin. Due to increased UV exposure and more extreme temperature fluctuations on homes and buildings’ exterior surfaces, exterior paints must be more durable.

Do I need a special kind of paint for my windows?

You certainly don’t need a specific type of paint for your windows – any exterior or interior you can use. But if you’re looking for a truly polished look, you may want to consider using glaze. The glaze is a clear paint that allows the natural color of the window to show through, turning your windows into one-of-a-kind works of art.

You can apply the glaze directly on top of any exterior or interior paint, and it looks like stained glass (without all the hassle). With glaze, the sky’s the limit to creating unique windows. Just be sure to choose a color that will contrast nicely with your paint!

What are the uses of leftover interior paint?

Interior paint can have many great uses, including you have used on an outdoor porch or patio. Exterior paint is typically better suited for these applications because it will hold up better to the elements. However, if you have a bare spot on your porch or patio that needs patching and only have interior paint available, that’s okay too!

You can also use interior paint inside a greenhouse or a garden shed. This will help protect the wood from the elements and create a new color.

Pour it into a spray bottle and use it to spruce up any surface quickly.

Mix it with a little bit of water and use it as a primer for surfaces prone to chipping or peeling.

Use it to paint old furniture or accessories to give them a new lease on life.

You can even paint the ceiling with it! This is an excellent option if you want to change the look of your living room, bedroom, or bathroom. If you’re looking for a bolder look, you can opt for exterior paint.

A quick and easy way to transform the look of your furniture is by painting the legs with interior paint in a contrasting color.

Interior paint you can use as a good substitute for exterior paint under the right circumstances!

Before you start, do your research and follow all the manufacturer’s instructions for whatever type of paint you choose. But if you’re determined to save some money or give yourself a fresh new look, then interior latex paint should work just fine.