1, our common insulation black tape, but it has only insulation function, but it is not flame retardant or waterproof effect, has been gradually phased out, only in some civilian buildings are still used.

2, PVC electrical flame retardant tape, which has its own three functions of insulation, flame retardant, and waterproof, but because it is a PVC material, its ductility is poor, and the connector can not be wrapped very tightly during use. And its waterproofing is not ideal, but it has now been widely used.

3, high pressure self-adhesive tape, this kind of tape is generally used in the higher voltage, but also because of its good ductility, in the anti-water is better than the PVC electrical flame retardant tape, so people often apply it in the low pressure field. But because it's not as strong as the PVC electrical flame retardant tape, we usually use these two combinations to have a good effect.