Polypropylene adhesive tape (RD-6 tape), also known as: mesh fiber polypropylene adhesive tape, reinforced fiber polypropylene (PP) anti-corrosion tape, is a type of polyolefin adhesive tape.

Our company introduced advanced foreign production processes in 2002. The polypropylene adhesive tape manufactured according to SY/T0414 standards consists of three layers: a base film, an adhesive layer, and a release film. The base material is a high-strength, UV-resistant, reinforced polypropylene fiber mesh fabric (geotextile). The adhesive is a modified asphalt based on butyl rubber and polyisobutylene, laminated with a release film using thermal composite technology. Over nearly two decades of application in new underground steel pipelines and external corrosion protection for steel storage tanks in petroleum, chemical, natural gas, and urban construction industries, as well as in restoration projects for aged protective coatings, this flexible corrosion-resistant material has demonstrated a corrosion resistance lifespan of up to 50 years through protective application and aging test verification. It was designated a “National Key New Product” and promoted as the “Crown of Corrosion Protection.”

    Polypropylene adhesive tape, with its outstanding tensile strength, robust impact resistance, and superior adhesion, effectively withstands external stresses from soil and thermal expansion. It prevents deformation and delamination of the anti-corrosion layer, making it an optimal material for anti-corrosion protective coatings.

1. Resistant to stretching, pressure marks, and abrasion

2. Strong adhesion with tight sealing

3. Resistant to aging, corrosion, and electrical shock

4. Flexible and easy to use, one-step molding saves costs

A. Construction Temperature: -5°C to +50°C; Prohibited during rain, snow, fog, or when relative humidity exceeds 85%. Do not perform outdoor construction in environments with significant sand accumulation.

B. When using polypropylene adhesive tape for the anti-corrosion layer

1. Surface Preparation: Remove rust, weld slag, burrs, oil, grease, and debris. Ensure surface is clean and dry. Meet GB/T 8923 requirements: manual rust removal to St3 grade, mechanical rust removal to Sa2.5 grade. (When combined with solvent-free liquid epoxy for composite structural corrosion protection, apply the adhesive tape primer only after the epoxy coating has fully cured.)

2. Apply primer for anti-corrosion tape: Keep away from fire sources during use. Stir thoroughly and apply evenly using a clean brush, roller, or other mechanical method.

3. After the primer forms a surface film within 3-5 minutes, wrap the tape with axial overlaps of 15-50% width. During application, increase the balanced tension between the polypropylene adhesive tape and the substrate to ensure tight adhesion, achieving a smooth, gap-free, and wrinkle-free finish.

C. When using polypropylene adhesive tape as a mechanical stress protection layer, primer is not required. Wrap with axial overlaps ≥50% of the tape width. Cover both ends with ≥50mm of flexible viscoelastic adhesive tape corrosion protection layer. Follow the same wrapping procedure as above.

1. Protect from direct sunlight, rain, and freezing temperatures; maintain warmth.

2. Prevent crushing or deformation; stack vertically up to 5 layers high.

3. After exposure to freezing temperatures below -5°C, store at approximately 20°C for 48 hours before use.

4. Store in a warehouse with relative humidity <75% and temperature between 5–30°C, away from heat sources and open flames.

5. Shelf life: 12 months.