Kilograms, litres, square meters… There are many parameters to consider when you want to repaint your walls! Understanding how much material to buy is important to avoid waste, but also to have enough paint available for the final touches and any additional needs.
This helpful article will guide you in the best choice for you, but first, have you already chosen the colour? If you still don't have clear ideas, we recommend our article about it.
We come therefore to the quantity of paint required.
First of all we need to ask ourselves the essential question: how many square meters do I have to paint? Sometimes this information is available in the floor plans of the house or office, but sometimes only the footprint measurements are available. How then?
The first method is certainly the longest, but also the one that will provide a more accurate result: arm yourself with a tape measure and some patience, measure the height and width of each wall, and multiply them among them.
The second method, quite accurate and certainly more immediate, is to multiply the footprint (in square meters) by 2.5. In this way, we will obtain a figure close enough to the exact measurement that we would obtain with the first method, but without wasting a lot of time.
Once you have the square meters of the wall, it will be very easy to calculate how much Airlite paint to buy! For example, if you want to follow the standard procedure, and first apply a coat of Airlite Primer and then one of Airlite Interior (our interior paint), just know that 1 litre of Primer and 1 kg of Paint cover approximately 10 -12 m 2. Let's now see the choice in detail.
How much Airlite Primer?
The Primer is a colour fixative, to be used when the walls to be painted are new, or with very porous: its useful as it gives a uniform colour and improves the absorption of the paint top coat. The choice of the quantity of Primer depends on the conditions of the wall. Generally one coat of Primer is sufficient, but sometimes a wall that is a little worn and in a bad condition, or with a particularly dark underlying colour, may require two coats.
In the first case, to apply a coat of Primer, you will need 1 litre every 10 m2.
In the second case, to carry out two coats of Primer, you will need 1 litre every 5 m2.
How much Airlite Interior?
The purifying effect of Airlite is accomplished not by the Primer (which does support the effect), but by the top coat – Airlite Interior for the interiors, and Airlite Exterior for the exteriors . For simplicity we will deal here only with the case of internal walls.
For interiors, a single coat of Airlite Interior (once called Purelight) is usually sufficient – you will need 1 litre every 10 m2.
To avoid running out of paint for final touch-ups and to remedy any unforeseen events that may occur (such as parts of the wall that had not been considered), our advice is always to increase this estimate by 10%, or at least up to round figure. For example, if you need 17kg of paint, you should take 2 10kg cans of paint (total. 20kg) instead of 1 x 10kg can, 1 x 5kg can, and 1 x 3kg cans. On the other hand, you know, walls like to change!
We have reached the end of this tutorial, which we hope was useful and comprehensive! To learn more about colours, paint spread times, or other interesting topics, visit our blog!
And if you still have doubts, don't hesitate to contact an expert, we will do our best to help you.