| 摘要 |
PURPOSE:To improve remarkably the corrosion preventiveness by the synergistic effect of airtightness and electrolytic protection by coating one side of a plastic sheet with a pressure sensitive adhesive and sticking continuously small pieces of metallic foil as a galvanic anode for electrolytic protection to a part of the adhesive side. CONSTITUTION:One side of a long-sized plastic sheet 1 is coated with a pressure sensitive adhesive 2 such as a corrosion preventing vinyl tape prescribed by JIS Z1901. Small pieces 3 of metallic foil as a galvanic anode for electrolytic protection are continuously stuck to a part of the adhesive side 11 having a width L1 corresponding to <=1/2 of the width L of the sheet 1. The small pieces 3 of metallic foil are made of a Zn alloy, an Al alloy, an Mg alloy or the like and have a rectangular shape. |
