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How do you remove the release liner from polypropylene anti-corrosion tape?

Release date:

2022-06-08

Polypropylene anti-corrosion tape typically comes with a release liner when unopened. This liner primarily serves to keep the tape separated, providing excellent protection until it’s ready for use. Now, let’s take a look at how to remove the release liner from polypropylene anti-corrosion tape!

Polypropylene anti-corrosion tape

　　1. Before starting work with polypropylene anti-corrosion tape, do not remove the entire release liner. The liner may be peeled off gradually as the tape is applied.

　　2. In general, the initial circumferential wrap should be applied perpendicularly; after completing the helical wrapping, subsequent polypropylene anti-corrosion tape must also be applied perpendicularly.

　　3. In addition, when applying the polypropylene anti-corrosion tape, care must be taken to avoid contaminating the substrate surface and ensuring that the substrate surface is free of any foreign matter.

　　4. Surface preparation of the substrate includes tasks such as rust removal, weld‑spatter removal, and deburring, and the surface must be clean, dry, and free of oil, dirt, and other contaminants. Typically, manual rust removal should achieve a St3 rating, while machine‑assisted rust removal should reach a Sa2 rating.

　　5. When applying the primer, use a dedicated primer and, while keeping it away from the flame, apply it evenly with a clean brush or roller. The typical application rate is approximately 12 L per unit area.

　　6. Wrap only after the primer surface has dried for approximately 5–10 minutes.

　　Polypropylene anti-corrosion tape is a non-hazardous, environmentally friendly corrosion‑protective tape. It is widely used for external corrosion protection of steel pipelines, piping systems, and underground steel storage tanks in the oil and gas, natural gas, chemical, and urban construction sectors.

　　Key points for using polypropylene anti-corrosion tape:

　　1. Surface preparation of anti-corrosion pipelines: remove rust, weld slag, burrs, oil, and debris; ensure the surface is clean and dry. Compliance with GB/T 8923 requirements: manual rust removal shall achieve St3 grade, while mechanical rust removal shall achieve Sa2.5 grade.

　　2. Apply the primer: Use away from sources of ignition, and after thorough mixing, apply evenly with a clean brush, roller, or other mechanical means.

　　3. After applying the primer and allowing it to dry for 5–10 minutes, the polypropylene anti-corrosion tape may be wrapped. During application, increase the tension to ensure proper alignment and adhesion, achieving a tight wrap with no gaps or wrinkles.

　　4. To mitigate the effects of environmental variations, corrosion‑protected pipelines must be concealed for 24 hours using shading and protective measures.

　　The adhesive used in our company’s polypropylene anti-corrosion tape does not exhibit cracking or delamination. It maintains performance across an ambient temperature range of –5 to 85°C. This outstanding performance stems from two key factors: first, the polypropylene substrate possesses high flexibility; second, the materials selected for formulating the butyl rubber–polyisobutylene‑modified asphalt adhesive are well matched. Additionally, the weft‑knitted structure of the polypropylene mesh‑reinforced geotextile substrate, combined with the advantages of plain weave fabric, ensures strong adhesion to the adhesive. Furthermore, during the thermal lamination process, the adhesive temperature is precisely controlled.

　　That concludes our explanation of how to remove the release liner from polypropylene anti-corrosion tape. For more information, please feel free to contact us at any time!

Introduction to Polypropylene Anti-Corrosion Tape

Methods for Maintaining the Performance of Polypropylene Anti-Corrosion Tape

Introduction to Polypropylene Anti-Corrosion Tape

Methods for Maintaining the Performance of Polypropylene Anti-Corrosion Tape

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How do you remove the release liner from polypropylene anti-corrosion tape?

汽车内饰：孙经理