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TIANJIN CNPETRO HITECH CO.,LTD hitech@petrotape.com 86--15602138358

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Home > products > Visco Elastic Wrap > Cold-Applied Primer-Free Self-Healing Viscoelastic Corrosion Protection Tape and Visco Elastic Wrap for Pipeline Inner Protection

Cold-Applied Primer-Free Self-Healing Viscoelastic Corrosion Protection Tape and Visco Elastic Wrap for Pipeline Inner Protection

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

Get Best Price
Product Details
Highlight:

Cold-Applied Viscoelastic Corrosion Protection Tape

,

Primer-Free Visco Elastic Wrap

,

Self-Healing Viscoelastic Inner Wrap Tape

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
Product Description
Cold-Applied Viscoelastic Corrosion Protection Tape (Inner Wrap)

150 mm * 10 m Roll | Primer-Free, Self-Healing Corrosion Barrier

Product Overview

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.

Product Specifications
ParameterSpecification
Product TypeCold-applied viscoelastic corrosion protection tape
System PositionInner wrap (first protective layer over steel or primer)
Dimensions150 mm (width) * 10 m (length)
Application MethodCold-applied, hand-wrap
Primer RequiredNo (primer-free system)
BackingSelf-supporting viscoelastic compound or non-woven carrier
ColorBlack, grey, or as specified
Service Temperature–30°C to +95°C (standard grades); high-temp grades available
Application TemperatureDown to –5°C surface temperature
Key Features & Benefits
FeatureBenefit
Cold-Applied, Primer-FreeNo heat, no torch, no primer—reduces field application time and eliminates hot-work risks
Viscoelastic Cold-FlowTape flows into pits, weld seams, pinholes, and irregular surfaces for complete coverage
Self-HealingMinor damages close automatically under compression, maintaining continuous protection
Excellent ConformabilityAdapts to complex geometries, fittings, flanges, and field joints
Watertight SealForms a continuous barrier against moisture, oxygen, and corrosive soils
Permanent FlexibilityDoes not harden, crack, or shrink over time
Cathodic Protection CompatibleDoes not shield CP current
Wide Temperature RangeStable performance from –30°C to +95°C
Easy InspectionNo curing time; immediate backfill possible after application
System Integration

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:

LayerProductFunction
1 (innermost)Viscoelastic Inner Wrap Tape (this product)Bonds to steel; cold-flows into surface irregularities; primary corrosion barrier
2Viscoelastic Outer Wrap TapeMechanical protection; additional moisture barrier
3 (optional)Outerwrap / TopcoatUV 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.


Typical Properties (Reference)
PropertyTypical Value
Total Thickness1.0 – 2.0 mm (product-dependent)
Dielectric Strength> 15 kV/mm
Water Vapor TransmissionVery low
Peel Strength to SteelExcellent adhesion without primer
Service Temperature–30°C to +95°C (standard)
Shelf Life24 months (unopened, cool dry storage)
Roll Dimensions150 mm * 10 m

Values are indicative and shall be confirmed against the specific product data sheet.

Cold-Applied Primer-Free Self-Healing Viscoelastic Corrosion Protection Tape and Visco Elastic Wrap for Pipeline Inner Protection


Primary Applications
  • 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

Application Summary
  1. Surface Preparation: Clean the steel surface to Sa 2½ or equivalent; remove dust, oil, and contaminants. Surface should be dry and frost-free.

  2. Position Tape: Starting at one end, apply the tape spirally around the pipe with the specified overlap (typically 50% or per project specification).

  3. Press and Conform: Press the tape firmly against the surface by hand or with a roller to ensure intimate contact and initiate cold-flow.

  4. Overwrap (if specified): Apply the outer wrap tape over the inner wrap for additional mechanical protection.

  5. Inspect: Visually inspect for voids, lifted edges, or incomplete coverage. No curing time is required before backfill.