Viper-Skin™ Carbon Fiber Composite Reinforcement System
PRODUCT INFORMATION
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 of use of a moisture-cured pre-preg. This operator qualified engineered system was designed to conform to and recognized by ASME PCC-2, ASME B31, ISO TS24817, DOT, API, and CSA Z662 standards for
nonmetallic reinforcing solutions, thus ensuring product application integrity. As a result of the micro-controlled wet-out process, nearly perfect resin content and maximum, repeatable strength properties are attainable. The time and cost associated with in-field saturation of the composite is removed from the equation altogether and eliminate the inconformity caused by human variability. The moisture-curing properties of Viper-Skin allow for subsea and wet environment applications. The Viper-Skin solution conforms to all shapes, welds, and irregular geometries, and one size can be used on a variety of pipe diameters.
- Transmission and distribution pipelines
- Oil and gas risers
- Mechanical dents and defects
- Girth welds on vessels and pipelines
- Straights, elbows, tees, and flanges
- Process piping: chemicals, oil, gases, water, and steam
- Water-activated polyurethane resin reduces composite preparation time by over 50%
- Installation in wet, rainy, or submerged environments ensures ease of application in virtually any situation
- Full factory engineering consultation support, ensuring safe and successful repairs
- VOCs: None
- Working Time: 30 Minutes at 75°F (24°C)
- Set Time: 2 Hours at 75°F (24°C)
- Resin Type: Water-activated polyurethane
- Resin Application: Micro-controlled, Pre-impregnated
- Service Temperature:: -50° to 194°F (-46° to 90° C)
- Application Temperature: 32° to 150°F (-18° to 65°C)
- Shelf Life: 12 Months with recommended storage conditions
- Syntho-Poxy™HC: Reinforcing Load Transfer Epoxy
- Syntho-Subsea™LV Epoxy: Kevlar® Reinforced Epoxy
- Synto Glass®UV: UV Protectant Coating
- Applicator Toolbox: Compression film, film perforation tool, additional protective gloves, and epoxy applicator tools
Keviar® is a registered trademark of E.I. du Pont de Nemours and Company.
TESTING DATA & RESULTS
| Test | Method | Result |
|---|---|---|
| Tensile Strength | ASTM D3039 | Hoop: 100,000 psi (6894.7 bar) |
| Hardness, Shore D @ 75°F (24°C) | ASTM D2240 | 83 |
| Flexural Strength | ASTM D790 | 61.600 psi(4,247 bar) |
| In-Plane Shear Strength | ASTM D5379 | 6.145 psi (423 bar) |
| CTE | ASTM E831 | 3.218 um/mºC |
| Lap Shear | ASTM D3163 | 1.782 psi (122.9 bar) |
Syntho-Subsea LV Epoxy Data
| Test | Result |
|---|---|
| Tensile Strength | 6.000 psi (413.68 bar) |
| Compression Strength | 7.380 psi(508.83 bar) |
| Flexural Strength | 4.550 psi (313.71 bar) |
| Flexural Modulus | 142.188 psi (9803.51 bar) |
| Abrasion Resistance | 34.0 mg/1.000 cycles(CS17 wheels with 1.000 gram weights) |
| Temperature | Result |
|---|---|
| Service Temperature: Dry Applications | -50º/275ºF (-45º/135ºC) |
| Service Temperature: Wet Applications | -50º/160ºF(-45º/71ºC) |
PREPARATION & APPLICATION
-
1
Surface Preparation
Promote adhesion by removing pipe coating, rust, paint and other foreign matter in accordance with Sa 2.5, NACE 2 or white metal. -
2
Syntho-Poxy™HC Load Transferring Material
Syntho-Poxy™HC fills all pits, dents, and other anomalies effectively transferring the hoop load to the high tensile strength composite. -
3
Syntho-Subsea™LV High Compression
Kevlar filled SubseaLV epoxy ensures a water-tight seal over the repair area while providing chemical resistance. -
4
Viper-Skin™ Carbon Fiber Composite A biaxial, hybrid carbon and glass fiber system to permanently repair and reinforce both the internal and external corrosion damage.
