What Is The Difference Between Interior And Exterior Paint

From summer sun to winter snow to everything in between this paint s number one quality is durability.

Exterior paints have to withstand sun and weather conditions without peeling. Exterior paint has to withstand the weather without peeling. Whilst visually they appear similar the purpose of each one is very different. Interior paint doesn t get rained on and will likely never be subject to a big freeze so it is made with more rigid resins.

Exterior paints are made to combat against fading and mildew. Interior paint is so made that they can be scrubbed and can resist staining. What is the difference between interior and exterior paint. The two significant differences between these types of paint come down to durability and off gassing.

The main difference between interior and exterior paint is the chemical compounds at its core. Though interior and exterior paints look similar their chemical properties are vastly different as exterior paint shave to withstand harsh weather conditions heat and snow can cause the exteriors to expand and contract requiring flexion in the paint. Interior and exterior paints have similar solvents and pigments though exterior paint may contain more pigment. Indoor paints are designed to withstand scrubbing and cleaning whereas exterior paint is designed to be waterproof fight sun mold and mildew.

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Paints with higher levels of vocs are reserved exclusively for use outdoors. So exterior paints are made with a kind of resin that can absorb the expansion and contraction. One of the most important differences though is their relative level of volatile organic compounds or vocs. The core difference between the interior and exterior paints is the resin used to bind the paint to the surface.

Read our take on the best drywall primer reviews. Whereas interior paints must resist abrasion. Interior paint is also designed to be more delicate than exterior paint because they occupy the same space as you do. Interior paint is formulated to be more resistant to physical damage.

Exterior paint also contains additives that help prevent fading stop mildew and resist tannin staining. Interior paint is designed to withstand abrasion. This is not required in interior paints. The real difference between them is found in the additives and the resin.