Polyethylene anti-corrosion tape is currently divided into:
1. Composite anti-corrosion tape (butyl rubber type): The earliest general anti-corrosion system consists of inner belt (anti-corrosion belt), outer belt (protective belt), and primer.
2, polyethylene 600 anti-corrosion tape (modified asphalt type): also known as one-piece belt, thick rubber layer, the general thickness can be from 0.8mm-4.0mm thick, is a new anti-corrosion tape variety.
3, polyethylene double-sided adhesive type anti-corrosion tape (composite plastic): This tape has composite butyl rubber on both sides, generally only used as anti-corrosion tape (inner tape), widely used in South Asian subcontinent, rarely used in China Mainly rarely designed, the domestic standards are still not perfect.
Fifth, the new standard of anti-corrosion tape:
The new standard is code: SY/T0414-2007 (Technical Standard for Steel Pipe Polyethylene Adhesive Tape Anti-corrosion Coating), the most important of which is to re-specify the anti-corrosion grade of anti-corrosion tape: anti-corrosion layer thickness, reinforcement level ≥1.0mm Special reinforcement grade ≥1.4mm Tape peeling strength of primer steel is increased and tape with separator (polyethylene 600 anti-corrosion tape, polyethylene double-sided adhesive anti-corrosion tape).
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