Scar-Guard®

Description

ScarGuard®

Composite Mechanical Protection for Directionally Drilled Pipelines

The patented Scar-Guard® line of products is designed to protect field joint and mainline coatings from the mechanical stresses and scarring associated with horizontal directional drilling (HDD), boring and micro-tunneling of pipelines.

 

Scar-Guard® is a composite abrasion resistant overcoat comprised of fiberglass cloth and pre-impregnated flexible resin that is activated by water and cured within minutes. This sacrificial outer laminate system protects preapproved anticorrosion field joint coatings and mainline coatings such as FBE, liquid epoxies, shrink sleeves, and tapes. The Scar-Guard® line of products minimizes the need for costly repairs after pull back, and provides robust protection of the underlying pipeline coating. U.S. Patent #8522827

TYPICAL APPLICATIONS

  • Horizontal directional drilling and boring
  • Coating protection
  • Sacrificial coating

BENEFITS

  • Controlled set time
  • ScarGuard is simple, easy to install
  • Non-hazardous
  • Consistency of application, joint after joint
  • Smooth profile reduces damage during pull through
  • No UV light or heating required
Product

Category

Laminate Properties Cure Schedule

75°F (24°C)

Thickness

(per Layer)

Resin

Type

Application

Temperature

Working

Time

Set 

Time

Scar-Guard® 0.034” MCU 32° to 150°F (0° to 65°C) 12 min 30 min
Scar-Guard® SYS 0.013” MCU 32° to 150°F (0° to 65°C) 8 min 28 min
Scar-Guard® E 0.034” Epoxy 50° to 250°F (10° to 121°C) 65 min 2.5 hr

 

Product

Category

Impact

Resistance

ASTM-G14 (100 mils)

Abrasion

Resistance

ASTM D-4060 (cycles / mil)

Gouge

Resistance

Partech (50 kg load)

Scar-Guard® 61.0 J (540 in-lb) 690 Pass
Scar-Guard® SYS 48.7 J (431 in-lb) 1,467 Pass
Scar-Guard® E 34.7J (192 in-lb) 3,333 Pass