Uno and Brio penetrating oils from Prato-Verde belong to the same category. If the desired color is not intense enough after the first application, it is possible to apply a second coat after a drying time of 24 hours, without the need for special preparation. This second coat should be applied in the same way as the first. However, it is not possible to apply a third coat because the wood would be saturated with colorant, which would not allow the color to be intensified.

It is possible to apply Brio Zero on regular Brio due to its good adhesion properties. However, it is important to note that the colors of the two products are different, even though they have the same name. The shades of Brio Zero are more intense. If one needs to apply Brio Zero on regular Brio, it is imperative to ensure that the surface to be treated is clean, without the need for sanding. Several layers of Brio Zero will achieve a more intense color. It is recommended to test in a less visible area before proceeding with the application.