CSNRI ScarGuard

CSNRI ScarGuard® is an engineered sacrificial protection system developed for pipelines exposed to challenging installation environments. The system combines fiberglass reinforcement with a pre-impregnated moisture-cured resin that activates with water and cures rapidly in the field. It is applied over approved anti-corrosion coating systems to provide an additional layer of mechanical protection during pipeline installation.

Designed for use with common pipeline coating technologies, including fusion bonded epoxy (FBE), liquid epoxies, shrink sleeves, and tape systems, ScarGuard® helps safeguard critical coatings from abrasion, gouging, and impact stresses encountered during trenchless construction operations. By protecting the underlying coating, the system supports long-term pipeline performance and corrosion protection.

Key Features

• Composite abrasion-resistant overcoat (ARO) construction
• Fiberglass fabric reinforcement with pre-impregnated flexible resin
• Water-activated, moisture-cured polyurethane resin system
• Rapid curing for efficient field installation
• Excellent abrasion resistance during trenchless pipeline installation
• High impact resistance for demanding construction environments
• Helps prevent gouging and coating damage
• Compatible with field-applied and factory-applied coating systems
• No field mixing or resin saturation required

Benefits

• Protects Critical Pipeline Coatings
  Provides a durable outer barrier that shields anti-corrosion coatings from abrasion, impact, and mechanical stress during installation.
• Reduces Repair Costs
  Minimizes coating damage during pullback operations, helping contractors avoid expensive repairs and rework.
• Supports Long-Term Pipeline Integrity
  By preserving the primary coating system, ScarGuard® helps maintain corrosion protection throughout the pipeline's service life.
• Improves Project Efficiency
  Fast installation and moisture-cured technology eliminate field mixing requirements, reducing labor complexity and installation time.
• Non-Shielding Protection
  Provides mechanical protection without interfering with the performance of approved coating systems.
• Environmentally Conscious Installation
  Utilizes a system that requires no hazardous field mixing processes, helping simplify jobsite operations.

Frequently Asked Questions

What is the primary purpose of ScarGuard®?

ScarGuard® is designed to protect pipeline field joint coatings and mainline coatings from abrasion, impact, and mechanical damage during trenchless installation methods.

Which coating systems can ScarGuard® be used with?

The system can be applied over approved coating systems such as fusion bonded epoxy (FBE), liquid epoxies, shrink sleeves, and tape coatings.

Does ScarGuard® require field mixing?

No. The product uses a pre-impregnated moisture-cured resin system, eliminating the need for field mixing or saturation.

What installation methods is ScarGuard® designed for?

It is commonly used for horizontal directional drilling (HDD), thrust boring, microtunneling, direct pipe installations, and other trenchless pipeline construction methods.

How does ScarGuard® help reduce project costs?

By preventing coating damage during installation, the system can reduce repair requirements, decrease downtime, and help avoid costly re-pull operations.

Can ScarGuard® be used on both field joints and mainline coatings?

Yes. It is specifically designed to protect both field-applied joint coatings and factory-coated pipe sections.