Document 6574941

The patented Scar-Guard™ line of products is designed to protect field joint coatings from the
abrasion stresses and scarring of directional drilling, boring, and horizontal directional drilling
(HDD), minimizing the need for spot repairs after a pull back, while providing long-term protection. U.S. Patent #8522827
Abrasion-resistant overcoating (ARO) for HDD, drilling and boring applications
Coating protection for pre-approved coatings such as epoxies, shrink sleeves, and cold- or
hot-applied tapes
 Sacrificial outer laminate in rocky environments
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Low profile reduces damage during pull-through
Non-shielding
Non-hazardous
Easy installation
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Pre-impregnated, no-field-mixing or saturation required
Moisture-cured
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Pre-saturated
Increased bond strength and hardness allows for more adverse soil conditions
Extended working time for hot climates
As determined by NRI engineering calculations
As determined by NRI engineering calculations
75 minutes @ 75˚F (24˚C), less at higher temperatures
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Application temperature
The following products are system components of the Scar-Guard system:
 Scar-Guard FC (Winter / Polyurethane)
 Scar-Guard SC (Summer / Polyurethane)
 Scar-Guard E (Epoxy)
Product
Category
Working
Time
Set
Time
Thickness
(per Layer)
Resin
Base
Shore D
Hardness
Scar-Guard FC
5 to 7 min
30 min
0.0225”
Polyurethane
72
2 hours
0.0225”
Polyurethane
74
2.5 hours
0.0225”
Epoxy
81
Scar-Guard SC 30 to 35 min
Scar-Guard E
45 to 55 min
* Working and set times are approximate and were measured at 75°F (24°C).
The Scar-Guard composite repair system was designed to conform to, and is recognized by
ASME PCC-2, ASME B31, ISO TS24817, DOT, API, and CSA Z662 standards for nonmetallic reinforcing solutions. Consult NRI Engineering for specified use.
Surface preparation and profiling shall promote continuous intimate contact between the FRP
system and pipe by providing a clean, smooth, and circumferential surface. Surface preparation shall be in accordance with SSPC-SP1 “Solvent Cleaning” and SSPC-SP11 “Power Tool
Cleaning” with a 1-3 mil surface roughness (25-75 microns) minimum. If an existing coating is
present, roughen to degloss. NRI’s composite repair systems are bond-critical and require a
strong adhesive bond between the clean pipe and the composite system.
SCG TDS 0814
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Installation of the Scar-Guard composite repair system shall be performed by NRI qualified
applicators only. Surface preparation, mixing of epoxy, material saturation, and installation of
the system shall be in accordance with NRI’s product specific installation guides, latest revision. Quality control inspection during and after installation of the system shall be performed
per NRI’s Installation Validation Procedure: Quality Control Records, latest revision.
Product
Category
Working
Time
Scar-Guard FC
5 to 7 min
Scar-Guard SC 30 to 35 min
Scar-Guard E
45 to 55 min
Set
Time
Thickness
(per Layer)
Resin
Base
Shore D
Hardness
30 min
0.0225”
Polyurethane
72
2 hours
0.0225”
Polyurethane
74
2.5 hours
0.0225”
Epoxy
81
* Working and set times are approximate and were measured at 75°F (24°C).
For proper information regarding the safe handling, storage, and disposal of chemical products, users shall refer to the most recent SDS, latest revision, containing physical, ecological, toxicological, and other safety-related data.
Epoxy: 12 months with proper storage
Fabric: 10 years with proper storage
Epoxy: store in original, unopened containers, indoors at a max temp of 95°F (35°C).
Fabric: store at temperatures below 100˚F (38˚C) away from moisture or any contaminants, in
original packaging
Pre-impregnated: Store in a cool, shaded area at an ambient temperature of 72°F (23°C)
Refer to individual data sheet for product packaging
©Neptune Research Inc. (NRI) NRI® is a registered trademark, while Scar-Guard™ is a
trademark of NRI. NRI utilizes a process of continuous product improvement for all of our
products. While we do strictly adhere to our products’ specifications, we routinely implement
product improvements. Therefore, please contact your local NRI distributor or office for the
most current product specifications. NRI warrants the quality of this product when used according to directions. Apply protective coatings per company standards. User shall determine
suitability of product for use and assumes all risk. The seller will not accept liability for more
than product replacement.
SCG TDS 0814
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