Interior Versus Exterior Paint: Their Complete Characteristics

Interior versus exterior paint is a topic you better learn before you start changing the color of your interior. Different paints have different properties since they are all manufactured for two different purposes. The exterior one is designed to handle fading and mildew.

While the interior paint is formulated to resist the staining and allow easy cleaning. It is crucial to take a much closer look at each type of paint and then see the difference between the different paint types.

Interior Versus Exterior Paint: The Basics

All types of paint are made of similar basic ingredients, including pigments, solvents, resins, and additives. The solvents make the paints ‘wet’. Solvents will evaporate as time flies when the paint starts drying. This process leaves additives, resins, and pigments.

Pigment is an essential component since it gives color to the paint. The additives will give the paint some different properties, such as the mildew resistance. And the resins will bind the paint to its surface. Resins usually are made of acrylic, epoxy, or silicone.

The basic difference of interior versus exterior paint is in the solvents. Exterior paint is using oil based or water based solvents. But the interior paint is using water based solvents and will never use oil based ones since oil based solvents have odor and are harder to clean.

exterior paint

Exterior Paint’s Characteristics

Exterior paint will be exposed to various conditions. It must be able to provide protection against the moisture that is caused by snow, rain, and ultraviolet radiation from the sunlight. Exterior paint is also designed to protect against the growth of fungus.

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Resins are the other difference of interior versus exterior paint. The resins that are used to create exterior paints are the soft and flexible ones so they won’t crack easily on any expansion or contraction. This allows the paint to survive various ill effects of temperature changes and moisture.

You can apply this exterior paint to various substrates, simply by changing the paint’s sheen. During the rain season, your house’s exterior is going to absorb water in small amounts. The flat paint is not going to bubble which means the water is allowed to escape more easily.

Exterior paint can release organic compounds that are more volatile. This makes exterior paint the worst option for your interior. Besides, exterior paint will cure by the help of sunlight,

Interior Versus Exterior Paint: Interior Paint’s Characteristics

Interior paint is designed for aesthetics and decoration. Interior paint will also add properties of wash ability, easy maintenance, and dampness prevention. This type of paint is formulated to withstand the abrasion. The paint is also designed in more delicate ways than the exterior one.

All interior paints are staining resistant. You can scrub the interior paint easily. And since this paint is not always have to deal with the sunlight, interior paint is not equipped with properties of fade resisting. This paint also doesn’t need the help of sunlight to cure.

The specialty of interior versus exterior paint is that interior paint is washable which means you can clean the brush and roller marks easily, as well as the spots and marks that are left behind by your pets and kids.

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Interior paints must have zero or low amount of organic compounds that are volatile. This is going to reduce the health risks. It is also helpful to preserve the home’s air quality.

How to Anticipate the Wrong Paint

If you already use interior paint on your exterior walls, don’t panic is the first step you need to take. Based on the details about interior versus exterior paint above, you’ll know that the interior paint outside won’t last long since it won’t withstand the harsh elements of the weather.

Once the paint starts to wear away, you need to sand the exterior wall, re-prime the wall, and repaint the surface using the exterior paint. Or, you can immediately brush a quick layer of your exterior paint over the interior paint you spread outside,

Always sand off the peeled or cracked bits and prime the areas before you start applying the exterior paint. This is the right way to make sure that your exterior wall’s surface will look pristine. After learning about interior versus exterior paint, make sure you use the right paint for different needs.

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