
Syntho-Sleeve® Directional Drilling Weld Joint Coating System
PRODUCT INFORMATION
Syntho-Sleeve® Outer Wrap is designed to protect welded field joints on pipelines from the abrasion stresses and scarring of directional drilling and boring. Syntho-Sleeve provides mechanical protection to the preapproved corrosion coating of your choice, such as viscous elastic coatings, epoxy coatings, shrink sleeves, and cold applied tapes.
This unique product has a faster setting time, is easier to apply, has a very low profile, is extremely conformable, and is highly impact resistant. The result is cost-effective, long-term protection against corrosion for buried pipelines of with superior mechanical protection.
- Horizontal directional drilling
- Boring
- Coating repair
- Coating protection
- Quick setting
- Simple, cost-effective installation
- Non-hazardous
- Drastically reduced installation time and materials
- Easy to apply
- Consistency of application, joint after joint
- Pre-impregnated, no field mixing or messy field wetting
- Water activated, no UV light or heating required
- Smoother profile reduces damage during pull through
Testing Data & Results
Mechanical Properties *
| Test | Method | Result |
|---|---|---|
| Tensile Strength | ASTM D638 | 36,000 psi (2482.7 bar) |
| Flexural Strength | ASTM D790 | 26,100 psi (1793.1 bar) |
| Compressive Strength | ASTM D695 | 24,000 psi (1655.1 bar) |
| Impact Resistance | ASTM G14/G62 | 123 ft. lb. (167 J) |
| Dielectric Strength | ASTM D149 | 16,000 Volts |
| Hardness, Shore D | ASTM D2240 | 80 |
| Lap Shear (to FBE) | ASTM D5868 | 800 psi (55.1 bar) |
| Set Time | Time | 5 Min @ 75°F (167°C) |
| *Mechanical properties of Syntho-Sleeve Outer Wrap | ||
For NRI's full range of testing on the Syntho-Sleeve®, please email sales@neptuneresearch.com.
PREPARATION & APPLICATION
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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-Steel® Load Transfer Putty
Syntho-Steel putty fills all pits, dents and other anomalies effectively transferring the hoop load to the high tensile strength composite. -
3
Syntho-Subsea High Compression
Kevlar filled Subsea epoxy ensures a water-tight seal over the repair area while providing chemical resistance. -
4
Syntho-Glass®XT Extreme Tensile Strength Composite The bi-directional fiberglass permanently repairs and reinforces both the internal & external corrosion damage.













