Use a hand grinder to grind and clean the existing contaminated surface or existing waterproof layer.
roller to sufficiently penetrate the floor.
Fills cracks and cracks at the corners of buildings with silicone or partner.
neutralizer on the floor and spread it evenly using a rolling pin. The thickness should be about 2~3mm.
Apply with roller the next day after mid-treatment.
This is the completed rooftop.