Viper Skin

Cena: Zapraszamy do kontaktu z biurem

Viper-Skin™ is the first bi-axial, hybrid carbon and glass fiber polyurethane pre-impregnated system that blends the unsurpassed strength and stiffness of carbon with the ease and use of a moisture-cured, factory-saturated fiber.

Description

Viper-Skin™ is the first bi-axial, hybrid carbon and glass fiber polyurethane pre-impregnated system that blends the unsurpassed strength and stiffness of carbon with the ease and use of a moisture-cured, factory-saturated fiber.

Typical Applications

  • Transmission and distribution pipelines
  • Oil and gas risers
  • Mechanical dents and defects
  • Girth welds on vessels and pipelines
  • Process piping: chemicals, oil, gases, water and steam

Benefits

  • Moisture-cured polyurethane resin reduces composite preparation time by over 50%
  • Factory-saturation optimizes fiber to resin ration and provides a material with a constant strength property
  • Non-shielding
  • Can be applied to damp, sweating, or immersed surfaces
  • No heating or post-curing required
  • Can be applied to any geometry including, but not limited to elbows, Tees, and flanges
  • Design conforms to ASME PCC-2, ASME B31, ISO TS24817, DOT, API, and CSA Z662 standards for nonmetallic reinforcing solutions

Technical data

Property Typical Test Value
Laminate Thickness 0.018”
Poisson Ratio 0.218
Flexural Strength 61,600 psi (4.247 bar)
In-Plane Shear Strength 6,145psi (423 bar)
Shore D Hardness 83
Energy Release Rate 2 in.lb/in2 (350J/m2)

Additional information

Mixing and mix ratio:

No mixing required.

Pot life:

30 minutes @ 75˚F (24˚C), less at higher temperatures

Limitations:

Application temperature: minimum of -18˚C and maximum of 90˚C.

Surface preparation:

Surface preparation and profiling shall promote continuous intimate contact between the CFRP system and pipe by providing a clean, smooth, and circumferential surface. Surface preparation shall be in accordance with SSPC-SP1 “Solvent Cleaning” and SSPC-SP10 / NACE 2 “Near White Blast Cleaning” 1-3 mil surface roughness (25-75 microns). If an exist-ing coating is present, roughen to degloss. The Viper-Skin composite repair system is a bond -critical composite repair system requiring a strong adhesive bond between the clean pipe and the Viper-Skin system.

Installation:

Installation of the Viper-Skin System shall be performed by NRI qualified applicators only. Surface preparation, mixing of epoxy, and installation of the system are to be in accordance with NRI’s Viper-Skin Installation Guide, latest revision. Quality control inspection during and after installation of the Viper-Skin system shall be performed per NRI’s Installation Validation Procedure: Quality Control Records, latest revision.

Cleanup and safety:

For proper information regarding the safe handling, storage, and disposal of chemical prod-ucts, users shall refer to the most recent SDS, latest revision, containing physical, ecologi-cal, toxicological, and other safety-related data.

Shelf life:

12 months

Storage conditions:

Store in a cool, shaded area at an ambient temperature of 95ºF ( 30ºC).
 
Refer to individual data sheet for product packaging.

Datasheets

Datasheet – Viper Skin