Leo Martínez
When choosing paints, every company has a unique numbering system that contains a base number for a recipe to deliver a specific colour. The base paint recommended by the paint chip is essential to achieving the desired colour. The base number unlocks a recipe for the paint store staff, who will mix various quantities of paint to achieve the desired colour. The difference between bases mostly comes down to titanium dioxide fill level, which is the white pigment used to give paints their whiteness and hiding power.
| Characteristics | Values |
|---|---|
| Bases | Foundation of any colour chosen |
| Base numbers | Vary across manufacturers |
| Base paints | Contain varying levels of white or grey |
| White base paints | Contain TiO2 (titanium dioxide) |
| Medium or mid-tone base paints | Contain less TiO2 |
| Clear or deep-tone base paints | Contain no TiO2 |
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What You'll Learn
Base paint is the foundation of the colour you choose
When choosing a paint, you may be overwhelmed by the confusing number codes used by paint companies. These numbers are called base numbers, and they are the foundation of the colour you choose.
Base paints are the starting point for any colour you want to paint your walls. They are the basis of the paint recipe, which includes a couple of drops of this, a squirt of that, and a big blob of another colour, all going into one large container of base paint. The base paint recommended by the paint chip is crucial to achieving the colour you want. For example, if you want to paint your living room with Mesa Sunrise, you must use the base paint indicated on the paint chip to get the right colour.
The base number on the paint chip tells paint store staff everything they need to know about the paint recipe. Each manufacturer has its own numbering system, so the numbers may vary across brands. These base paints come in different levels of lightness or darkness, depending on the amount of white or grey pigment in them. With more white pigment, the resulting paint colours are lighter and more luminous. Conversely, paints with less white pigment are darker, deeper, and richer in tone.
Additionally, the difference between bases also comes down to titanium dioxide (TiO2) fill levels. TiO2 is the white pigment that gives paints their whiteness and hiding power. "White base" paints contain a significant amount of TiO2, while medium or mid-tone bases have less, and clear or deep-tone bases have none.
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Base A and D paints have different levels of white or grey in them
When choosing paints, every company uses different number codes and naming conventions to refer to their base paints. These bases are the foundation of any colour you choose. The base paint recommended by the paint chip is essential if you want the colour on your walls to match the chip. While the numbering system differs between manufacturers, the base number tells paint store staff everything they need to know about the recipe for that paint.
Base paints come with varying levels of white or grey in them. With more white pigment, the resulting paint colours are more luminous and lighter. With less white, paints have darker, deeper, and richer tones. For example, "white base" paints can contain 30% or more of their solid content in titanium dioxide (TiO2), the white pigment used to give paints their whiteness and hiding power. Medium or mid-tone bases have less TiO2 (around 10-15%), while clear or deep-tone bases have no TiO2 and will dry almost clear.
The base system allows the retailer to add all of the colourant right there in the store. This is useful because it would be challenging to darken a can of white paint into a deep tone without overflowing the can and diluting the other ingredients.
In addition to TiO2, other fillers such as talc, calcium carbonate, or clay are added to bring whiteness and different sheens.
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White base paints contain titanium dioxide
Paint bases are the foundation of any colour of paint. Bases are numbered, and these numbers correspond to a recipe that paint manufacturers use to mix different colours. The bases contain different levels of white or grey pigment. The more white pigment in the base, the lighter and more luminous the resulting paint colour.
TiO2 is the most important material used by the paint industry for whiteness and opacity. It has the highest refractive index of any known material, even higher than diamond. This means it has an excellent ability to bend and scatter light, giving paint its opacity and brightness. When used in paint, titanium dioxide provides maximum whiteness and opacity, effectively masking or hiding the substrate underneath.
The amount of titanium dioxide in a paint can vary depending on the desired colour. "White base" paints can contain 30% or more of their solid content in TiO2, while medium or mid-tone bases may have 10-15%, and clear or deep-tone bases contain no TiO2 at all. The base system allows retailers to add colourants to the paint to achieve the desired colour without overflowing the can and diluting the other ingredients.
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Medium or mid-tone bases have less titanium dioxide
When it comes to paint, the base refers to the foundation of the paint colour. Medium or mid-tone bases have less titanium dioxide (TiO2). TiO2 is the chemical compound that gives paint its whiteness and hiding power. It is a white solid that is insoluble in water, though mineral forms can appear black. The more TiO2 in a paint, the better it will be at concealing the previous surface colour.
White base paints can contain over 30% of their solid content in TiO2, whereas medium or mid-tone bases have less, around 10-15%. Clear or deep-tone bases have no TiO2, which means the paint would dry almost clear. The amount of TiO2 in a paint also affects its opacity, with more TiO2 resulting in a more opaque paint.
The base of a paint is important because it allows the retailer to add colourant to create the desired colour. Without the base system, it would be difficult to create dark-toned colours without overflowing the can and diluting the other ingredients.
Different paint manufacturers use different base systems, so the same colour from two different manufacturers will likely never be an exact match. Medium-base paints are commonly used for house paints as they tend to be lighter colours and offer better coverage than deep-base paints.
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Clear or deep-tone bases have no titanium dioxide
The base of a paint is a thin and solid material that forms the body of the paint and contains the majority of it. It is not a primer, which is a foundation coat applied before painting a wall or another surface. Instead, the base is a working medium in paint that is made particularly for combining colours.
The amount of titanium dioxide in a paint controls how well it hides the prior surface colour. Greater concentrations of titanium dioxide in tintable base paints provide superior surface concealment compared to bases with lower concentrations. White bases have the most titanium dioxide with the fullest coverage, even though light bases are more opaque than medium bases.
Deep-tone bases have lower opacity compared to medium-base paints and require much more coating. They also have more white pigments compared to deep-base paint and are produced with lighter tones. Medium-base paints offer much better coverage compared to deep-base paints.
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Frequently asked questions
Base A and D in paint likely refer to the amount of white pigment in the paint. A is for "white base" paints, which can contain 30% or more of their solid content in titanium dioxide (TiO2), the pigment that makes paint white. D, or "deep-tone base", paints have no TiO2, meaning they dry almost clear.
The difference between paint bases mostly comes down to titanium dioxide (TiO2) fill levels. White base paints contain the most TiO2, medium or mid-tone bases have less, and clear or deep-tone bases have none.
Every paint manufacturer uses a unique numbering system to identify paint bases. These numbers are like a recipe for the manufacturer, indicating the exact mixture of colours needed to achieve the desired shade.
When choosing a paint, it's important to select the paint base recommended by the paint chip to ensure the colour on your walls matches the chip. Different bases of the same colour will have varying levels of white or grey, resulting in different warmth levels and opacities.
