Function of applying primer:

1. Applying primer is to prevent alkali rebound, which refers to alkaline substances in cement penetrating through the paint and leaching out, mainly appearing as a layer of white powder on the paint surface.

2. Primer has its own functions, such as alkali resistance and mildew prevention, which can enhance adhesion, increase the service life of the topcoat, reduce the possibility of dampness, etc. Finally, the amount of topcoat used will also be reduced, so using primer is necessary.

Recommended dosage: After the base coat is well treated, apply a uniform coat of primer. It is recommended that 1kg of primer covers 8-10 square meters (do not dilute with water).

Note: If primer is not used, it may lead to situations such as blooming, yellowing, color fading, and uneven color on the wall surface.