Before installing the door, it should be processed with special protective equipment, they will be able to increase the working life of the door, and save it from destruction. It is worth noting that if the door condition is terrible and it is not possible to restore it, then you can use the laying of the mosaic. Because the mosaic will distract the attention of the visitor from the door.
And for this, you should first prepare the door, and eliminate its all kinds of defects, and then grind with sandpaper or use a grinding machine.
Now there are many compositions that can protect the door like a fungus, from mold, and much more.
When an antiseptic is applied, you should wait until this layer dries completely, and it is better to leave the door in the fresh air so that it is immediately ventilated. At the same time, the antiseptic is saturated deep into the door, and it will be able to last a long time.
You can put up the door after an antiseptic is applied, and you should purchase a putty specially designed for wood.
If the door is smooth and smooth, then you can apply a primer. The primer must be applied in several layers, while each layer must dry. If the door will be painted later, then instead of a primer you can use Olifa, and if it is varnished, it is better not to take Olifa.
All paintwork and primer materials can be applied with various tools that will be convenient for you.