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It depends on the quality of the interior paint. If it's 100% acrylic interior paint, It should be fine outside if it's not in an area that is prone to mildew. If it is, you'll need to clean it with chlorine more often.

If it is not a high end interior paint, it won't last long outside, especially on wood. If you're not in a cold weather area, you might get three to five years out of it. If you're in an area prone to freezing, it won't be that long. You need to repaint it while it is till a sound surface, otherwise you're making more work for yourself.

Your other option is to just paint over it with an exterior paint if you want to do something about it now. Depending on the quality of the paint, this may be your best option since there will be a minimum of prep because the surface is already clean and sound.

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11y ago
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14y ago

It is not a problem. The only real difference is that exterior paint is made to chalk or get powdery to cause dirt to fall off. Being inside it is not exposed to the weather and should not do this. If the color and sheen is what you want, don't worry about it.

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12y ago

It's not a good idea to use exterior paint indoors. Exterior and interior paints are specially made for different conditions and shouldn't be used interchangeably.

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Q: What can you do if you accidentally used interior paint on an exterior surface?
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What should you do if your new exterior door was painted with 2 coats of interior paint by accident?

Apply a coat of exterior paint over the interior paint to protect the finish and to discourage mildew growth on the paint film.


Can you paint the exterior of your above ground pool if so what kind of paint should be used?

You can paint the exterior of your above ground pool. You will first have to clean it and use sand paper to lightly scruff the surface. You should use an exterior primer to prime the surface, and then an exterior paint designed for the type of surface your are painting to paint it.


Can interior primer be used on exterior wood?

It is best to use an exterior primer outside, rather than an interior. While, the interior paint will work, it does not have the same protection such as UV protection, and fungicide protection that is found in exterior paints.


Can you turn interior paint into exterior paint?

Interior paint could be used on the exterior with a much shorter lifespan. To extend the lifespan a topcoat to seal it would be advisable. Instead of this two step process, an exterior paint is advisable.


Can I paint exterior paint over interior paint?

No, the exterior paint will not hold up properly indoors or dry correctly. Exterior paint is made differently from interior paint to hold up to weathering. Exterior paint on an interior surface will not work very well, just as interior paint on an exterior surface will not work well over time. The only exception is if the surface you are painting is a door or something like that, that gets exposed to both types of conditions. http://www.thepaintprofessional.com/ Au contraire, exterior paint will hold up on interior surfaces just fine. The reason NOT to use exterior paint on interiors, is because there is a whole lot more VOC's and bad stuff for peoples health and lungs that would normally get dispersed when used outside. Read the label. http://www.the-professional-painter.com/

Related questions

What should you do if your new exterior door was painted with 2 coats of interior paint by accident?

Apply a coat of exterior paint over the interior paint to protect the finish and to discourage mildew growth on the paint film.


Can you paint the exterior of your above ground pool if so what kind of paint should be used?

You can paint the exterior of your above ground pool. You will first have to clean it and use sand paper to lightly scruff the surface. You should use an exterior primer to prime the surface, and then an exterior paint designed for the type of surface your are painting to paint it.


What type of paint should you use in a kitchen?

Preferably paint that has not already dried solid inside the paint can. I would highly recommend this type for most any use on an interior or exterior surface.


Can interior primer be used on exterior wood?

It is best to use an exterior primer outside, rather than an interior. While, the interior paint will work, it does not have the same protection such as UV protection, and fungicide protection that is found in exterior paints.


Can I use an exterior latex primer to prime interior trim?

Using exterior paint on the interior should not be a problem. You would only use exterior paint outside because it weathers better, which is not really an issue here.


How do you remove exterior paint from your interior walls?

Use a citrus based stripper that will cling to the wall and allow it to work overnight. However, an easier option would be to paint directly over the exterior paint with a good quality interior latex paint.


Can interior paint be painted on top of exterior paint?

yes but what a mess why would you put interior paint on top of exterior espically if it's outside then it fad's away chip's it won't take the beating as out door paint after you look at the big picture the answer is NO""""""


Does interior door paint match the exterior on a 66 Corvette?

Yes it does


Can you turn interior paint into exterior paint?

Interior paint could be used on the exterior with a much shorter lifespan. To extend the lifespan a topcoat to seal it would be advisable. Instead of this two step process, an exterior paint is advisable.


Can I paint exterior paint over interior paint?

No, the exterior paint will not hold up properly indoors or dry correctly. Exterior paint is made differently from interior paint to hold up to weathering. Exterior paint on an interior surface will not work very well, just as interior paint on an exterior surface will not work well over time. The only exception is if the surface you are painting is a door or something like that, that gets exposed to both types of conditions. http://www.thepaintprofessional.com/ Au contraire, exterior paint will hold up on interior surfaces just fine. The reason NOT to use exterior paint on interiors, is because there is a whole lot more VOC's and bad stuff for peoples health and lungs that would normally get dispersed when used outside. Read the label. http://www.the-professional-painter.com/


Can interior paint be used outdoors?

Yes, but it won't work as well as exterior paint. The difference may not be visible in the short run though. But interior paint formulations do not include such additive as moldicide/fungicide that help paint resist wet exterior conditions, or stronger elastomerics that help paint better expand and contract with the outside temperature fluctuations, or sun protectors and special pigments that resist fading. Outside paint also create stronger/more durable surface film for better surface protection.


Can exterior paint be used interior?

No, both types of paint have different properties and uses. Examples of interior paint can include flat, semi-gloss, gloss and eggshell. For more inforation, look here: http://www.housepaintingtutorials.com/interior-paint-finishes.html I recently had to ask a rep at Sherwin Williams about this as a home that was purchased a few months ago was painted with exterior latax paint. So although not ideal exterior paint could be used indoors but it is not reccomended. Here is the answer I received: Hello, The DURA WEATHER MAXBOND paint in the attic room would not be a health concern after 3 months as long as the attic room was ventilated after application to allow the volatile organic compounds the opportunity to escape into the atmosphere. If the attic room was not ventilated, you may experience acute symptoms from overexposure to the volatile organic compounds in the air. These acute symptoms would include headaches, nausea, and dizziness. Often the same mildewcide which is used in interior paints is also used in exterior paints, but at a greater amount in exterior paints because mildew is more likely to grow outdoors in high humidity. The mildewcide that is used in the DURA WEATHER MAXBOND paint is commonly used in household plastic products like umbrellas and shower curtains, and it is used in many of our interior paints. It is an EPA approved broad spectrum fungicide which has been chosen because of its effectiveness against microorganisms and its low toxicity to mammals. This mildewcide is not volatile; consequently, it remains in the paint where it inhibits the growth of mildew on the surface of the paint. As a rule we do not recommend the use of exterior paints for interior applications because exterior paints are formulated to chalk and regenerate the surface. In exterior paints the binder resins are softer and additional chemicals are not added to make the surface harder. Consequently, exterior paints do not possess the scrub resistance which is a desirable characteristic of interior paints. For this reason we do not recommend the use of exterior paints for interior applications. Phil Manager, Regulatory Information The Sherwin-Williams Company