QR Code
About Us
Products
Contact Us

Phone

Fax
0086-574-87527773

Email

Address
No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
Anti-corrosion tape is a specialized pressure-sensitive tape engineered to provide long-term protection for metal surfaces against corrosion, chemical attack, abrasion, and environmental degradation. It is a critical component in asset integrity management for industries such as oil and gas, water and wastewater, marine, infrastructure, and construction. The primary function of this tape is to create a continuous, high-adhesion barrier that shields vulnerable areas like pipelines, joints, welds, valves, and fittings from moisture, oxygen, salts, acids, and soils that cause rust and corrosion. Unlike simple wraps or paints, a high-performance anti-corrosion tape system offers robust, durable protection that can last for decades, significantly reducing maintenance costs and preventing catastrophic failures.
At Kaxite, we have developed our anti-corrosion tape formulations based on decades of field experience and material science. Our tapes are not just products; they are engineered solutions designed to meet the most demanding specifications and environmental conditions. We understand that effective corrosion protection depends on a synergy of material properties, which is why every layer of a Kaxite tape is optimized.
A typical Kaxite anti-corrosion tape is a laminate system consisting of:
Selecting the right tape requires a thorough understanding of its technical parameters. Below are the key specifications for our standard and premium-grade tapes.
| Property | Standard Grade (SG-200) | Premium Heavy-Duty Grade (HD-500) | Test Method |
|---|---|---|---|
| Total Thickness | 1.4 mm ± 0.1 mm | 2.0 mm ± 0.1 mm | ASTM D3652 |
| Tensile Strength | 35 N/cm | 60 N/cm | ASTM D3759 |
| Elongation at Break | 200% | 250% | ASTM D3759 |
| Adhesion to Steel (Peel) | ≥ 15 N/cm | ≥ 25 N/cm | ASTM D3330 |
| Temperature Resistance (Continuous) | -30°C to 80°C | -40°C to 100°C | ASTM D1000 |
| Exposure Medium | Resistance Rating (SG-200 & HD-500) | Notes |
|---|---|---|
| Water & Salt Water Immersion | Excellent | No blistering, disbondment, or loss of adhesion after 3000+ hours. |
| Dilute Acids & Alkalis (pH 3-11) | Excellent | Surface layer provides an effective barrier. |
| Hydrocarbons (Diesel, Crude Oil) | Good to Excellent | Minor swelling possible; outer layer remains intact. |
| UV Radiation | Excellent | UV-stabilized outer layer prevents degradation. |
| Soil Stress & Cathodic Disbondment | Excellent (HD-500) Good (SG-200) |
HD-500 specifically formulated for direct burial and high CP environments. |
Q: What surface preparation is required before applying Kaxite anti-corrosion tape?
A: Proper surface preparation is the single most important factor for long-term success. The metal surface must be clean, dry, and free of rust, scale, oil, grease, and dust. For optimal results, we recommend abrasive blasting to a minimum standard of Sa 2½ (ISO 8501-1) or power tool cleaning to St3. The surface profile (anchor pattern) should be between 50-75 microns. Immediately after preparation, apply a compatible primer if specified (for some tapes), then apply the tape while the surface is still within the specified cleanliness and dryness window.
Q: How do I correctly apply the tape for a permanent seal?
A: Start with a primer if required. Unroll the tape and begin wrapping at one end of the area to be protected. Apply the tape with a 50-55% overlap (spiral wrap) or a butt joint with an overlying sealant strip for longitudinal seams. Maintain moderate, consistent tension to ensure conformation without stretching the tape thin. Use a plastic or rubber application roller to firmly press the tape onto the surface, working from the center outwards to eliminate air pockets and wrinkles. For critical joints or fittings, use a combination of wrapping and pre-formed shapes or mastic for complete coverage.
Q: Can Kaxite tape be used for underground (buried) pipeline applications?
A: Yes, specifically our HD-500 Premium Heavy-Duty grade is engineered for direct burial and trenchless applications. Its thicker, reinforced construction offers superior resistance to soil stress, rock impingement, and cathodic disbondment. It is compatible with standard cathodic protection systems and is tested to relevant standards such as ASTM G8, G17, and G19 for long-term underground performance.
Q: What is the expected service life of the tape?
A: The service life is highly dependent on the application environment, surface preparation, and installation quality. Under standard atmospheric conditions with proper installation, Kaxite tapes are designed for a service life exceeding 25 years. For buried, submerged, or more aggressive chemical environments, the expected life can be 15-20+ years. Regular inspection intervals are recommended as part of a complete corrosion management program.
Q: Is the tape compatible with cathodic protection (CP) systems?
A: Absolutely. Kaxite anti-corrosion tapes are electrically insulating and will not shield cathodic protection currents when properly applied (i.e., without air pockets or disbondment). Our HD-500 grade undergoes rigorous cathodic disbondment testing to ensure it does not promote corrosion under the coating if the system is compromised, making it an excellent companion to CP systems for pipeline integrity.
Q: How does it perform in extreme temperatures, both high and low?
A: Our tapes are formulated with polymers and compounds that remain flexible at low temperatures and stable at high temperatures. The SG-200 operates from -30°C to 80°C, while the HD-500 handles ranges from -40°C to 100°C. This ensures the tape does not become brittle and crack in Arctic conditions nor flow/sag on hot pipelines exposed to direct sunlight or process heat.
Q: Can it be applied over existing rust or old coatings?
A: No. Anti-corrosion tape is a protective barrier, not a rust converter. Applying it over active corrosion will trap moisture and contaminants, accelerating the corrosion process underneath the tape. All loose rust, mill scale, and failing old coatings must be completely removed to sound substrate to ensure adhesion and prevent under-film corrosion.