
Latex paint vs. oil-based
The information below gives a great overview of the differences between latex and oil paints. These differences can be used to your advantage! And what differences there are! Oil paints seal stains better but tend to crack under temperature changes. Oils make the best stain killers for interior work, but outside latex stain killers shine! Oils make the best primers for "rusty" metals, but latex primers are superior for galvanized metals.
Not surprisingly, painters have personal preferences based on a mix of experience and superstition. Some swear by latex paint for trim and doors, while others would rather give up their firstborn than using anything but a quality alkyd paint on these wood surfaces!
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Confused? Don't be... the trick is to be open-minded. Neither latex nor oil paint is ideal in all circumstances. Since different paints have different strengths and weaknesses, I defer to your local professional paint store. They know their paints and can help you decide the best combination of latex and oil paints to solve your own painting crisis!
Latex Paint
Advantages
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Fast dry
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Better fade resistance
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More chalk resistant
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Breathes, less blistering
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Retains flexibility longer
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Tolerant on alkaline surfaces, like masonry
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Will not yellow
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Resists mildew better
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Clean up with water
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Good on galvanized metal
Disadvantages
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Shrinks more when drying, creating more surface stress
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More temperature sensitive
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Less adhesion to chalk and dirt
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Can stain with water-soluble contamination
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Softer, normally not used in high-traffic areas
Oil-Based Paint
Advantages
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Less shrinkage
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Low temperatures have less effect
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More durable in high-traffic areas
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Seals stains better
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Holds rust better on steel
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Better adhesion on dirty or chalky surfaces
Disadvantages
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Turns brittle with age
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Slower dry time than latex
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Colors fade faster
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Chalks faster than latex
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Tight film blisters faster (will not breathe)
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Yellows with age
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Peels on galvanized metal