ZERO DEFECT SYSTEM is based on Joaboa Tech's SKIN TYPE waterproof theory, which can greatly enhance the reliability of the waterproof project by eliminating the fluid-channel between the waterproof layer and the substrate. Even if there are damages or defects in the waterproof layer, they won't destroy the whole waterproof system. In order to make this design idea come into reality, Joaboa Tech chose "waterproof membranes & waterproof coatings" as the complete waterproof materials.
