Paint consumption rates for metal

17-06-2018

Useful

Buying any paintwork material, you can quickly calculate the required quantity, as the manufacturer indicates all the necessary information on the packaging. But, it is worth noting that the volume will be individual for each type of surface. Only professionals can make an accurate calculation and calculate paint consumption rates for metal. Detailed information can be found in the article below.

Considering the factors

To carry out independent calculations on the amount of paint used for metal, it is necessary to pay attention to such important factors:

the quality of the coloring matter;
surface condition;
staining technology;
air temperature and humidity;
drafts or air currents;
other nuances.

You should also pay attention to another series of indicators, on which paint consumption will depend. It is primarily about the hiding power of the composition, which is most often expressed in g / m². This indicator will indicate how much paint material can cover the previous layer. Most modern products are able to give the desired result in the first layer of staining, the maximum - the second.

Important in this matter is the tool itself, which conduct staining. Cost-effective and even paint application to metal can be ensured by a properly selected brush. The ideal option for most types of paints should be called a brush with natural bristles. But for paints and varnishes on a water-dispersed basis, it is not suitable. What criteria affect the quality of the instrument for staining?

Wide grip.
Good thickness.
No winding on nylon base.

Opacity of the composition is inversely proportional to the rate of consumption.

Paint consumption parameters

The item to be painted can be made of different metals, for example, colored, black or galvanized iron. This parameter is especially important when using oil and alkyd substances. The condition of the surface also matters: a smooth and even surface with no obvious signs of deformation will automatically increase the quality of staining.

Consider a few more important points:

Base color: to obtain light shades without gaps, dyeing in several layers will be required. For example, the average consumption rate per 1m² white is about 110 grams., and black - 60 grams.
Way of drawing: the airbrush is the most economic and evenly distributing, but will not suit for each type of substance. When using a brush and a roller, the volume of consumption will be several times larger, and leakage may also occur.

When using spray guns, a measuring jar is purchased, due to which the volume of a substance can be determined by 1 m² will be much easier.

To reduce consumption, the surface is pre-primed or puttied. This will avoid dripping and uneven application of the layer.

Losses

Do not forget that when working should also take into account the possible loss of paint material, which will also affect the amount of paint needed. For convenience, you can use the following average indicators depending on the place where the dyeing is carried out:

up to 5% - in the open air with no wind;
5% - in closed rooms;
20% - in windy weather.

The range of colors on metal

When choosing a paintwork material to paint a metal surface, one should only pay attention to two large groups:

Alkyd paints. In turn, there is a division into two subgroups - these are oil compositions (their basis is linseed oil) and enamel.
Acrylic coatings.

The latter are leaders, as they have a greater number of advantages:

the applied layer is strong and durable;
for a long time they do not fade or deform;
corrosion protection is present;
able to withstand high temperatures;
environmental friendliness and nonflammability.

For internal dyeing, choose acrylic formulations, as they are safer for health and do not have a pungent odor. If you need to carry out outdoor work, you can opt for enamels.

Alkyd paints withstand temperatures of no more than 80º C. While in acrylic types, this figure reaches 120º C.

Popular paint brands

The range of colors on metal, представленный в специализированных магазинах, широк, но лидируют три марки.

Tikkurila. It has good wear resistance and perfectly tolerates the effects of all types of fats and oils. Designed for both internal and external works. In the first case, 1 l is enough for coloring 8–10 m², and in the second - 10–14 m².
Hamerayt. The difference is the possibility of painting surfaces with rust without prior priming and cleaning. 1 l of paint in 1 layer will cover 8–9 m².
Novbythim Modern primer enamel. In addition to the decorative features, the coating will create a protective layer. At 1 m² in 1 layer you will need from 80 to 120 ml.

Pay attention to the figures that the manufacturer indicates, but do not forget about the factors that affect the flow.

Conduct staining should be in accordance with the technology, otherwise you can get poor-quality coating with drips and gaps.