EN

Paint specific weight: how much 1 liter weighs

In construction, paints are used not only for decoration but also as a way to protect surfaces from adverse environmental effects. Requirements for floor, wall, radiator and ceiling paints are different. Their chemical composition, purpose and place of use also differ.

Types of Paint

All paints used today in construction and finishing can be divided into three large groups.

  • Emulsion paints.

This category includes compositions based on a stable emulsion of water, binder and pigment. Depending on the base, water-emulsion paints can be:

  • acrylic;

  • mineral;

  • silicate;

  • silicone.

Emulsion paints are easy to work with: they wash off hands and tools easily, dry quickly, do not have a strong unpleasant odor and create a pleasant texture. The dried surface is fairly resistant to moisture, especially in paints with special additives such as silicone, latex or liquid glass in silicate paint.

Some water-emulsion compositions are suitable for exterior painting; resistance to frost, moisture, ultraviolet light and abrasion should be checked according to the purpose and specifications of the particular paint.

Water-dispersion paints are a type of emulsion paint. Their main feature is increased moisture resistance. Such compositions should be applied at the temperature specified by the manufacturer.

  • Alkyd paints.

The binder in this category is alkyd resin. Alkyd paints include:

  • enamel paints;

  • oil paints.

Alkyd paints are resistant to weathering, light and water. They can be used on wooden and metal surfaces, as well as on plastered surfaces indoors or outdoors.

Alkyd and oil paints may dry longer than water-based compositions. During application and drying, solvent-based products release volatile organic compounds, so they should be used with good ventilation and according to the manufacturer instructions. White spirit, turpentine and similar products are used as solvents; gasoline is not suitable for every paint.

  • Silicate paints.

These paints are based on liquid glass diluted with water. This category also includes lime and other mineral paints, for example cement-based paints. They are prepared immediately before use.

Features of silicate paints:

  • poor compatibility with other paint types;

  • high vapor permeability of the mineral coating when the substrate is suitable;

  • moisture permeability because of the loose dried layer;

  • resistance to temperature changes.

Silicate paints are used mainly on mineral substrates such as plaster, concrete, brick and facade surfaces, if allowed by the specific product. Because of the alkaline nature of liquid glass, they should be handled carefully with skin and eye protection.

There are many other paint types as well, because the modern selection is very wide. In industrial premises, epoxy compositions are used in places with high humidity, for example when building pools, and polyurethane paints are used for coatings that require increased wear resistance.

Paints can be classified by different principles:

  • by binder type: oil, silicate, acrylic, silicone, epoxy and others;

  • by thinner type: water or solvents;

  • by area of application: industrial, automotive, artistic or construction;

  • by appearance of the painted surface: matte, semi-matte or glossy;

  • by purpose, depending on the surface material.

Paint Weight

Paint density is an important technical indicator. Different types of paint have their own density ranges. Specific weight values are shown in the table below.

Paint type Density (g/cm³) Specific weight (kg/m³) Liters in 1 kg
Acrylic 1.3-1.4 1300-1400 0.740
Silicate 1.15-1.2 1150-1200 0.833
Silicone 1.55 1550 0.645
Oil 1.4-2.5 1400-2500 0.52
Polyurethane 1.5 1500 0.67
Epoxy 1.4 1400 0.714
Enamel 1.2 1200 0.833

Frequently Asked Questions

How much does 1 liter of paint weigh?

Weight depends on paint type. According to the table, 1 liter of acrylic paint is about 1.3-1.4 kg, silicate paint 1.15-1.2 kg and oil paint 1.4-2.5 kg.

Why do paints of the same volume weigh differently?

Density is affected by binder, pigments, fillers, solvent or water, and the coating purpose. For accurate calculation, use the data sheet of the specific paint.

How do you convert kilograms of paint to liters?

Liters are calculated by dividing mass by density. The table also gives the reverse guide: liters per 1 kg for different paint types.