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What are the advantages of polypropylene anticorrosive adhesive

Release time:

2022-03-20

Polypropylene anti-corrosion tape is becoming more and more popular. What are the advantages of polyethylene anti-corrosion adhesive? Compared with other anti-corrosion products, what are his advantages? So, let's learn about the advantages of polypropylene anti-corrosion adhesive!

One. Excellent corrosion resistance

1. Polypropylene and butyl rubber have excellent water resistance and oxidation resistance;

2. The polypropylene anti-corrosion tape has sufficient bonding force (20-30N/cm) with the steel pipe, which can effectively prevent water from entering the surface of the steel pipe. In the field of winding and landfill for many years can also maintain a high bonding strength;

3. Polypropylene anti-corrosion tape has good elongation. Elongation and flexibility can be maintained over a wide temperature range. The measured elongation is usually 150 to 400%. Polyethylene adhesive tape can be wound at -34 temperature and can be used for a long time at -40. Its embrittlement temperature is -7, and the embrittlement temperature of petroleum asphalt is -5;

4. The plastic glue has sufficient strength to resist the mechanical operation of the pipeline during loading and unloading and the stress of the soil after being buried. The surface is smooth, and the pipeline and coating will not fall off when the pipeline and soil are displaced after filling;

5. The anti-corrosion layer of polypropylene anti-corrosion tape has good cathodic stripping resistance. It is shown that most of the tape anti-corrosion pipelines have reliable protection potential and stable protection current, and the ability to adapt to cathodic protection current is good;

6. Polypropylene anti-corrosion tape has high insulation and low moisture absorption. The resistivity of the coating is above 11012.m, and the moisture absorption rate is less than 0.02. Its breakdown voltage of 40kv/mm is 2 times that of asphalt; the water absorption rate of coal tar enamel is 2 times that of tape, and the water absorption rate of petroleum asphalt is 6 times that of adhesive tape.

Performance characteristics of polypropylene anti-corrosion tape:

1) Polypropylene anti-corrosion tape has good chemical and physical stability.

2) The bonding force with the steel pipe is 20-30N/m, which can effectively prevent moisture from entering.

3) Excellent ductility and flexibility. It can maintain flexibility even under -40 and will not break due to bending or impact, so it can be constructed in extremely cold weather. The embrittlement temperature is -70, while the embrittlement temperature of materials such as petroleum asphalt is -5.

4) high mechanical strength, can prevent certain mechanical damage and soil stress.

5) It has good anti-cathodic disbonding performance and matches cathodic protection.

6) It has high insulation and low moisture absorption, its volume resistivity is above 11012.m, the moisture absorption rate is 0.01, and the moisture absorption rate of petroleum asphalt is 6 times that of polyethylene anti-corrosion tape.

7) The construction process is simple, the operation is convenient, the applicable conditions are wide, and the quality control is intuitive.

The above is what the advantages of polypropylene anticorrosive glue, if you need to know more, you can contact us at any time!

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