Water based paints are the popular type of paint used for interior and exterior painting projects. This type of paint dries quicker, cleans up easier, and has little to no odor compared to it’s rival oil-based paints.
Before you get started on your next DIY home painting project, find out the difference between water-based paints vs. oil-based paints, as well as “what are the different types of water-based paints”.
What Are The Different Types of Water-Based Paints
Water-based paints come in an acrylic and latex formulation and both are used for painting homes interiors and exteriors.
What are the two types of water-based paints used for interior and exterior painting
The Different Types of Water-Based Paints
acrylic or latex are the two names given to water-based paints used for both interior and exterior painting.
The Difference Between Acrylic and Latex Paints
While both acrylic and latex paints have very similar compositions there is a small difference in their formulation. Knowing the difference between them will be useful for your next project.
Acrylic paints are made up of acrylic and resin polymers and are chemically based, making it water-resistant when dry, a stronger and longer lasting paint. The cost of buying an acrylic paint can be more than a latex paint as it will take more paint to cover bigger areas.
Because of the acrylic polymers it is a strong and longer lasting paint that withstands cleaning and washing better, it adheres to almost all surfaces. Enamel is also a word used to describe an acrylic paint because of its exceptional durability.
Latex paints are made up of less acrylic polymers than its acrylic paint counterpart, is less expensive and eco friendly, goes on faster and easier and covers more square footage, which makes it a good alternative if you want to save money.
Advantages of Painting with Water-Based Paints
The primary advantage of painting with water-based paints is that they are environmentally safe and friendly and are the most commonly used type of paints for interior and exterior painting of houses, condo apartments and residential painting.
Other pros or advantages of using water-based paints are:
- Ease of Application
- Very good adhesion to surfaces
- Easy clean up
- Dries quicker
- Resists colour fading
- Little to no VOC – has little to no fumes or odour
Water-based paints are perfect to use on surfaces like drywall, wood, stucco, brick, aluminum or vinyl siding making them ideal for use on any interior or exterior painting project.
They also provide good resistance to mold and mildew when used for painting areas such as kitchens and bathrooms, laundry rooms, basements and exterior areas where higher levels of moisture or humidity are more likely.
Disadvantages of Painting with Water-Based Paints
While painting with water-based paints is an ideal choice for all its positives, there are just a couple of cons or disadvantages to painting with water-based paints.
- Temperature sensitive – water-based paints are not ideal to use in colder exterior temperatures (anything below the 50 degrees Fahrenheit or 10 degrees Celsius will cause it not to adhere properly and the paint will take much longer to dry. Consumer Reports has an excellent article on the ideal outdoor temperature for exterior paint
- Poor adhesion to surfaces like metal that are typically more of a glossy finish
- Primer paints are recommended to use before painting any surface
- Prone to peeling, cracking, flaking or blistering
Water and Oil Do Not Mix
Everyone knows that water and oil just don’t mix. When you add oil into water it just doesn’t blend together but rather it separates and floats.
Painting over a surface that was previously painted with an oil-based paint can be painted over with a water-based latex paint successfully once the proper surface prep is done first.
In order for the latex paint to adhere better over the oil-based paint you should prepare the walls first with a cleaning, repair any drywall imperfections, and a light sanding before applying the paint.
How To Test To See If It Is Oil-Based Paint or Water-Based Paint
While oil-based paints can be used to paint over both a water-based paint and or an oil-based paint the same is not true about painting a water-based paint over an oil-based.
To prevent the headache of having to do the job over again just double check it first by performing either of these two easy tests.
- In a small area, rub a small section of wall or other surface with a cloth or rag dipped in acetone, a.k.a. nail polish remover. If the paint transfers over onto the rag it is water-based, if no paint is transferred onto the rag then it is an oil-based paint.
- Another quick and easy way to test the surface to see if it is oil-based is to scratch a very small area with the tip of your fingernail. If you notice a small dent that means it is oil-based.
Find Expert Painters Near You
If all this seems overwhelming and you are still feeling unsure trust an expert painting company to take care of the entire process for you.