What Is The Difference Between Interior And Exterior Paint

Concluding Interior Vs Exterior Paint Comparison

ðï¸? Interior vs Exterior Paint (You CAN Use Either One!) ðï¸?

A brief article on the difference between interior and exterior paint is written so you can have an idea before using them in your house. Both of these paints appear to be the same most of the time but have different properties.

Exterior paints are lighter and distribute evenly whereas interior paints have brighter colors. It is best if both of these are used at appropriate places because they have ingredients that help them to stay in good condition. I hope this article will help you know the basic difference between these paints.

What Do I Do If I Accidentally Used Exterior Paint Inside

Have you accidentally used exterior paint inside? Well, while this can make one feel a bit silly, its nothing to worry about. Firstly, determine whether the exterior paint you used is water-based or oil-based. If the paint is oil-based. If your paint is oil-based, use some thinner or mineral spirits to loosen it up, if your paint is water-based, you should be able to use some rubbing alcohol and some elbow grease to remove it if the paint has already dried.

How Much Does Paint Cost

Price is always a concern with any home or commercial improvement project. And while it might be tempting to choose a bargain paint to keep costs down, consider that investing in quality paints can actually add more value to the overall outcome of the project.

The best contractors do everything they can to remain competitively priced, but they arent going to skimp on paint quality, because the top-quality paints simply make them look better as a company, allow the work they do to last much longer than if they were to use bargain-quality paints, and there is also the customer satisfaction aspect to consider, which is significantly improved with top-rated paints.

Due to the extra additives required to make exterior paint hold up to the harsh elements, it is often costlier than interior paint. The other cost you have to factor in is labor, which is a crucial component of any successful project, because the best paints in the hands of an amateur will not bring value to your project.

As for the issue of bargain paints vs. high-quality paint, you can spend as little as $15 or $18 on a gallon of paint that will most likely not be easy to apply, will not look great on your wall and will not have the durability to last. On the high end, the best paints with special additives can cost as much $100 per gallon.

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Differences Between Interior And Exterior Paint Components

The lack of certain environment-specific additives gives interior paints a disadvantage when used on external surfaces, and the difference between interior and exterior-formulated paints doesn’t end there. Differences begin to emerge when you look at paint’s other three basic components, too: pigment, binders and liquids.

Let’s start with pigment, which is what provides a can of paint with its color. Interior paints may contain organic pigments for color, and certain types of organic pigments are known to significantly fade if used on an exterior surface exterior paint formulas avoid these pigments, increasing the time needed between outdoor paint projects.

Similarly, paints are formulated with additives known as binders, which are used to bind the pigment together as well as provide adhesion to the painted surface. Because exterior paints need more help combatting the adverse effects of the environment, binders used in outdoor-friendly formulations give the paint resistance to integrity problems such as cracking and chalking, as well as increased moisture control. Interior paint binders may offer better resistance from abrasion, instead, which isn’t necessarily a much-needed quality in exterior paint.

And for those who just don’t know why this has to be so difficult, there is another option paint formulated to be used both indoors or out. There is such a thing as a hybrid interior/exterior-formulated paint.

Originally Published: Jun 29, 2014

Can You Use Interior Paints Outdoors

Types of Paint Finishes

Paints have come a long way since the turn of the century, and theyre improving all the time by becoming more versatile, hard wearing, easy to use, and even more vibrant in color. However, this doesnt mean that you can simply use a paint that has been specially designed for a particular surface on something else and expect it to work in the same manner.

As we mentioned previously, just because you can do something doesnt mean that you should do something, and when it comes to using interior paints outdoors it would be a bit like setting a wad of money on fire and expecting it to somehow be okay. Interior paints are nowhere near the level of toughness needed to be used outdoors.

Paint is paint, right? Wrong! Exterior paints contain chemicals and catalysts that allow them to be applied in an exterior setting without succumbing to things like moisture, torrential downpour, excessive exposure to heat, insect infestation, mold, as well as abrasion and impact resistance. Furthermore, exterior paint is designed to expand and contract with the change of seasons as your home heats up and cools down, while interior paint is not graded and does not have the elasticity of this application.

This being said, lets have a look at some of the pros and cons of using interior paints on the exterior of your home, and even though we recommend that you shouldnt if you absolutely have to, here are a few things you should consider before doing so.


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When Youve Already Used Exterior Paint Inside

External paints are meant to withstand the impacts of the elements, but they are not intended for use indoors. When used internally, they are easily marked and scuffed.

Just because exterior paints can tolerate severe weather conditions, they can not withstand frequent usage or footfall, and theyre less likely to entirely cover the ceiling, wall, or floor.

Some exterior paints emit potentially toxic vapors that dissipate when exposed to the elements. However, these vapors might get trapped when employed within a structure, resulting in disagreeable odors.

For my key reasons as to why you should not use exterior paints indoors, we have an ideal article for you.

Interior And Exterior Paints Are They Interchangeable

For the most part, paints are very similar. While there are oil and water based paints, which do have some chemical differences, all paint comprises of resin, solvent and pigment. But there are key differences between some kinds of paints that may be more suited for application on certain surfaces. Paints can also vary in their appearance and finish. Matte, Low sheen, Semi-gloss & Gloss varieties can be chosen for their respective looks, with each differing in terms of sheen, reflectivity, durability, etc.

So what about exterior and interior paints? Are there considerable differences between the two?

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What Is The Difference Between Oil

Water-based paints have binders and pigments that make them blend with water. The water behaves like a carrier and will evaporate to leave the color on the surface.

Such latex-painted surfaces hold the color better, and cleaning them is easier. Water paints contain fewer VOCs, and so they are friendly compared to oil paints.

Also, when the paints are dry, the surface becomes flexible and durable. Such paint can be applied on ceilings, walls, and other surfaces.

Also, cleaning the brushes is easy, and it is easy to remove the spills using soap and water.

On the other hand, oil-based paints are loaded with natural oils such as soybean, Tung, and linseed. They also contain synthetic alkyds, pigments, and some solvents thinner.

When you spread the oil on the surface, the thinner will evaporate to leave behind pigments and resin that forms a long-lasting hard coat.

The trouble with oil-based paints is that they contain more VOCs. Therefore, they are not environmentally friendly. Also, the surfaces are hard to clean, so that the paint will work well on the baseboard, trim, and doors.

Note that the oils will take a longer time to dry, but when they do, it creates a hard film that is tough and durable. Also, cleaning up brushes and spills is difficult and may require that you use stronger solvents like turpentine, mineral spirits, and thinners.

What Are The Characteristics Of Interior Paints

Difference between Interior Paint and Exterior Paint

To have a better understanding of interior paints, here are some of their notable characteristics.

  • Interior paint can withstand occasional deep cleaning -a good scrubbing won’t harm the surface, or soaking for stain removal.
  • Interior paint is low in volatile organic compounds , typically using natural pigments versus chemical coloring.
  • Additionally, they are more prone to fade, flake, and crack.
  • This kind of paint is applied for aesthetic purposes.
  • There are numerous different faux-finish effects and many different sorts of finishes available for interior paints, including matte, satin, eggshell, semi-gloss, and gloss.

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The Advantages Of Higher Quality Interior Paints

Most painting contractors agree that there are three things they look for in a quality paint:

  • Ease of application

At Painters Inc., we know our clients want their new paint to look fantastic and they want it to last a long time so they dont have to invest in another painting project for years to come. Thats why we use paint that has a more consistent appearance and wont reveal brush or roller marks.

The paint we use requires less retouching and there is less spatter, which reduces the time it takes us to clean up after or during a project. Our quality interior paints are also made to resist dirt, stains and burnishing, which means cleaning is far easier and the paint will hold up to scrubbing.

Whether Indoor Or Outdoor Isnt Paint Just Paint

Since the success of your project can depend on choosing the perfect paints for interior and exterior walls, the first step is learning the differences between the paints themselves.

Paints for different purposes will have different properties. Their individual formulations are designed according to their primary protective abilities.

For example, interior paint is made to be scrubbed, resist staining, and allow for easy cleaning. Exterior paints are made to combat against the elements, fading and mildew.

When selecting paints for both the interior and exterior of a house, homeowners may find themselves frustrated by these options.

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Whats The Difference Between Interior And Exterior Paint

Both exterior and interior paints are critical in maintaining the good look of a house. The exterior paint will tell the visitor what to expect once they get inside the house.

On the other hand, the interior allows the visitor to relax and enjoy the stay in the house. So the two types of paints are different, and so you may not substitute one for another.

The difference between the interior and exterior paints lies in the resin used to manufacture the paint. This is a component that binds the paints pigment to the materials or substrate. The pigments in the exterior paint are strong and resistant to temperature variations and moisture.

So if you do not understand the paint pigments, you may be wondering whether you can use the interior paint on the outside and vice versa. Of course, you can, but the results you get will tell you that it is not the best thing to do.

The exterior paint is designed to resist and withstand mildew, UV, wind, and snow. Also, it should be able to withstand extreme temperatures and mildew.

Read on to understand the difference between interior and exterior paint.

What Is The Difference Between Interior And Exterior Latex Paint

What Is The Difference Between Interior And Exterior Primer Paint ...

It’s crucial to understand the distinctions between interior and exterior paint before starting your painting project so that you can select the appropriate type. That’s why we looked for the differences between the two. And here is what we found:

The main distinction between these two paint types is the type of resin used to produce them. The resins used in the production of exterior paints must be softer since exterior paint must endure exposure to moisture and extreme temperature changes.

On the other hand, huge temperature swings and dampness are not a problem for interior paints. Consequently, the resins utilized in their production can be stiffer.

Stay with us as we discuss the characteristics of interior and exterior paint. And in case you’re wondering if you can use these paints interchangeably, we’ll also talk about that below.

Additionally, we’ll also tell you when to touch up or repaint your walls and how long interior and exterior paint last. So, read on!

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Is It Bad To Use Exterior Paint Indoors

You should not use exterior paint indoors. Exterior paint contains resins and additives that may give off fumes. That is the biggest problem in doing this. Even if you don’t smell the chemicals, they can still be there. Some exterior paints may continue to be harmful for over six months after application.

There are other problems you may encounter when using exterior paint inside. It will expand and contract with the weather, but it will not hold up to the kind of scuffs and wear from frequent touching that is likely inside the home, for example. It’s best to save the exterior paint for the exterior of your home.

Cant Decide Which Paint To Use

If you need help in deciding which paint to use for your next interior or exterior project, contact Walla Painting. We have many satisfied homeowners that use our services. Walla Painting is a locally owned business that specializes in residential home painting. Weve won the Angie’s List Super Service Award for the past eight years. Contact us for a free estimate for your next painting request.

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How Long For Interior Paint To Dry

In addition to the advantages of water-based paints such as not containing harmful chemicals to human health, ease of application, wide color range compared to solvent-based paints, the drying time is also very short. Water-based paints become available for the application of the second coat within 2-3 hours, depending on the temperature of the application environment, season and weather conditions.

It takes between 5-7 days to paint fully dry and acquire its final properties. The interior wall paint can dry and be ready to sit within 1 day. However, it should not be forgotten that an average of 7 days should be waited for the paint to have its final properties and the paint should be protected within this period.

Is There A Difference Between Interior And Exterior Paint Primer

Differences Between Exterior and Interior Paint. | The Expertâs Corner, Ep. 10

Yes, there is a great difference between interior and exterior paint primer. The primer used for the interior increases the adhesion and makes the surface flat for uniform painting. However, exterior paints are used to reduce cracking, preventing mildew growth and fungus. Also, the formulas of both interior and exterior primers are different.

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What Is The Difference Between An Interior Designer And An Interior Architect

Interior architecture focuses primarily on structural design and emphasizes the adaptation and remodeling of existing buildings. Interior design emphasizes the interior atmosphere and how to curate finishes, furniture, and color palettes. These positions have a similar set of skills but must apply those skills in very different approaches. Degrees in either give you the opportunity to build a professional portfolio while studying.

Here is a more in-depth look at some differences:

  • Interior architects deal with structural renovations. They can work with builders, contractors, and technicians throughout the building process.
  • Architects have licenses. Interior architects
  • Interior design focuses more on aesthetics rather than construction elements.
  • Interior designers have different qualifications than architects. Certain states require licensure.

Things To Know Before Starting A Painting Project

Paint serves a number of purposes. Most importantly, it protects surfaces, adding years and years to the life of a structure. Another important reason paint is applied to structures is for aesthetic reasons, as choosing the right colors can enhance its appearance. Finally, a fresh coat of paint can give a structure a sudden boost of curb appeal.

When it comes to actually choosing the right type of paint, the situation gets more difficult because different paint manufacturers use different terminologies. To clear that up a bit, know that most paint is made up of six ingredients: base, pigment, filler/extender, binder, thinner/solvent and various additives that improve the quality of the paint for special situations. On top of that, there are 20 different types of paint, from latex to oil to enamel and many other types in between, each having a specific purpose. Working with the right painting contractor will ensure that your project utilizes the exact paints your property requires.

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Basic Ingredients Of Paint

Before we dive into the differences between exterior and interior paints, its important to have a base understanding of how paint works and how its made.

There are only a few ingredients in paint, and each one is crucial. The main base of the paint, also called a solvent, is either oil or water. Oil-based paints tend to be used for exterior paints and are not generally found in interior paints. Water-based paints can be used for either interior or exterior paints.

Pigments give your paint color. Special additives can give your paint different physical effects such as water-resistance, UV-resistance, or make it more durable.

When you apply paint to a surface, the solvent or base will quickly start to evaporate. Once it does, youre left with just the pigments and additives bounded to the surface you just painted by the resins.

Epoxy, silicone, and acrylic can all be used as resins. Since exterior paint needs to stick through more turbulent conditions, it usually uses harsher resins with superior adhesion.

Once the paint dries and the resins bond your pigments and additives to the surface, your wall is painted and looks brand new.


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