TIANJIN CNPETRO HITECH CO.,LTD hitech@petrotape.com 86--15602138358
Product Details
Place of Origin: China
Brand Name: CNP
Certification: ISO
Model Number: CNP V
Payment & Shipping Terms
Minimum Order Quantity: 300 Rolls
Price: USD 30
Packaging Details: 200X400X320mm
Delivery Time: 7 workdays
Payment Terms: L/C,T/T
Supply Ability: 1000Rolls/Day
Tear Resistance: |
High |
Breathability: |
Good |
Form: |
Roll |
Temperature Resistance: |
-10°C To 95°C |
Materials: |
Visco Elastic |
Package: |
Paper CTN |
Material: |
Viscoelastic Foam |
Elasticity: |
Excellent |
Color: |
White |
Flexibility: |
High |
Weight: |
Lightweight |
Water Resistance: |
Yes |
Adhesive Type: |
Self-adhesive |
Stretchability: |
High |
Productname: |
Visco Elastic Wrap |
Tear Resistance: |
High |
Breathability: |
Good |
Form: |
Roll |
Temperature Resistance: |
-10°C To 95°C |
Materials: |
Visco Elastic |
Package: |
Paper CTN |
Material: |
Viscoelastic Foam |
Elasticity: |
Excellent |
Color: |
White |
Flexibility: |
High |
Weight: |
Lightweight |
Water Resistance: |
Yes |
Adhesive Type: |
Self-adhesive |
Stretchability: |
High |
Productname: |
Visco Elastic Wrap |
150 mm * 10 m Roll | Primer-Free, Self-Healing Corrosion Barrier
Our Cold-Applied Viscoelastic Corrosion Protection Tape (Inner Wrap) is a high-performance, primer-free protective tape engineered for the long-term corrosion protection of pipelines, field joints, fittings, and complex geometries. Supplied in a convenient 150 mm width * 10 meter length roll, this inner wrap tape is applied directly to prepared steel or compatible coatings without heat, primer, or special equipment.
Formulated with advanced viscoelastic adhesive technology, the tape cold-flows into surface irregularities, self-heals minor damages, and forms a continuous, watertight barrier against moisture, oxygen, and corrosive soils. It serves as the critical inner layer of a multi-layer corrosion protection system, delivering reliable performance in buried, immersed, and above-ground service conditions.
| Parameter | Specification |
|---|---|
| Product Type | Cold-applied viscoelastic corrosion protection tape |
| System Position | Inner wrap (first protective layer over steel or primer) |
| Dimensions | 150 mm (width) * 10 m (length) |
| Application Method | Cold-applied, hand-wrap |
| Primer Required | No (primer-free system) |
| Backing | Self-supporting viscoelastic compound or non-woven carrier |
| Color | Black, grey, or as specified |
| Service Temperature | –30°C to +95°C (standard grades); high-temp grades available |
| Application Temperature | Down to –5°C surface temperature |
| Feature | Benefit |
|---|---|
| Cold-Applied, Primer-Free | No heat, no torch, no primer—reduces field application time and eliminates hot-work risks |
| Viscoelastic Cold-Flow | Tape flows into pits, weld seams, pinholes, and irregular surfaces for complete coverage |
| Self-Healing | Minor damages close automatically under compression, maintaining continuous protection |
| Excellent Conformability | Adapts to complex geometries, fittings, flanges, and field joints |
| Watertight Seal | Forms a continuous barrier against moisture, oxygen, and corrosive soils |
| Permanent Flexibility | Does not harden, crack, or shrink over time |
| Cathodic Protection Compatible | Does not shield CP current |
| Wide Temperature Range | Stable performance from –30°C to +95°C |
| Easy Inspection | No curing time; immediate backfill possible after application |
The Cold-Applied Viscoelastic Corrosion Protection Tape (Inner Wrap) is designed as the inner protective layer of a complete corrosion protection system. Typical system configuration for pipeline field joints and complex geometries:
| Layer | Product | Function |
|---|---|---|
| 1 (innermost) | Viscoelastic Inner Wrap Tape (this product) | Bonds to steel; cold-flows into surface irregularities; primary corrosion barrier |
| 2 | Viscoelastic Outer Wrap Tape | Mechanical protection; additional moisture barrier |
| 3 (optional) | Outerwrap / Topcoat | UV protection and abrasion resistance for exposed environments |
The inner wrap tape can be applied directly to blast-cleaned steel (Sa 2½ or equivalent) or over a compatible primer, depending on project specification. For applications requiring additional mechanical protection, the inner wrap is overwrapped with a compatible viscoelastic outer tape.
| Property | Typical Value |
|---|---|
| Total Thickness | 1.0 – 2.0 mm (product-dependent) |
| Dielectric Strength | > 15 kV/mm |
| Water Vapor Transmission | Very low |
| Peel Strength to Steel | Excellent adhesion without primer |
| Service Temperature | –30°C to +95°C (standard) |
| Shelf Life | 24 months (unopened, cool dry storage) |
| Roll Dimensions | 150 mm * 10 m |
Values are indicative and shall be confirmed against the specific product data sheet.
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Pipeline field joints – Girth welds, tie-ins, and repair areas
Fittings and flanges – Valves, tees, elbows, and flanged connections
Tank bottom chime edges – Concrete-to-steel interfaces
Buried and immersed pipelines – Onshore and offshore environments
Coating rehabilitation – Repair of damaged PE, PP, FBE, and bitumen coatings
Water and sewerage pipelines – Joint protection and sealing
Surface Preparation: Clean the steel surface to Sa 2½ or equivalent; remove dust, oil, and contaminants. Surface should be dry and frost-free.
Position Tape: Starting at one end, apply the tape spirally around the pipe with the specified overlap (typically 50% or per project specification).
Press and Conform: Press the tape firmly against the surface by hand or with a roller to ensure intimate contact and initiate cold-flow.
Overwrap (if specified): Apply the outer wrap tape over the inner wrap for additional mechanical protection.
Inspect: Visually inspect for voids, lifted edges, or incomplete coverage. No curing time is required before backfill.