The present invention relates to the improvement of the Schiropol part, which is widely used in fishing nets as fishing gear and is widely used as moxibustion or buoy. Currently, the Schiropolbu is used to display fishing nets and fishing gear, and to keep buoyancy buoyant. Schiropol is widely used because it has excellent buoyancy, floats in water and is light in water, but it is oxidized in salt water and sunlight, and it is easily damaged by small friction or impact. This design is made by coating the urethane waterproofing fabric on the surface of nylon fabric Dafuda on the surface of the styropole, so that the styropole is not exposed to sea salt or the sun to prevent oxidation, and also is not easily damaged by friction. It is designed to extend the life of the Schiropol part while preventing the Schiropole from being damaged and floating in the sea while devising it. In order to achieve the above object in the construction of the unit using the nylon Dafuda waterproof paper and Schiropol of the present invention [Fig. 2] is a cross-sectional view of the present invention (1) is a nylon Dafuda fabric waterproof coated fabric (2 ) Is Schiropol.;1 is a cross-sectional view of the main part of the present invention (1) is nylon Dafuda coated waterproof paper and (2) is Schiropol part (부).;Fig. 3 (1) is a Schiropol part currently widely used.;[FIG. 1] As described above in [FIG. 2], the present invention is widely used in the surface of the Schiropol part of [FIG. 3], as shown in (1) of [FIG. 1]. In order to prevent the breakage of the existing widely used Schiropol part (도표) of Figure 3 is designed to not oxidize in the salt and sunlight.