MCO™ Outerwrap


A pipeline protected by Trenton MCO outerwrap
The “MC” in MC Outerwrap stands for “moisture cured”. The materials in the wrap start to cure when they are exposed to the moisture in the air. Soon the wrap provides a very hard and tough outer coating.

MCO™ outerwrap is a specialized blend of quick curing resins impregnated into a fiberglass fabric. It provides soil stress and backfill protection to coatings that need additional mechanical strength. MCO outerwrap is specifically designed as a “hard shell” outerwrap over the Trenton Wax-Tape® wraps. It can also be used over other coatings. It is sold complete with gloves and Trenton MCO outerwrap end adhesive. MCO outerwrap is hand applied, with no other application materials needed.

End Use

MCO outerwrap is used aboveground or belowground as a mechanical protective wrapper over Trenton’s Wax-Tape® wraps.

Application Procedures

Pre-apply any of Trenton’s coatings and then, with only enough tension to keep the slack out, spiral wrap MCO outerwrap with at least a 50% overlap (use 80% overlap when needed in high stress areas such as transition pipe in clay soils). Make sure MCO outerwrap is extended out past the new coating on both ends for better anchoring. At the end of the last roll, brush on MCO outerwrap end adhesive to prevent possible unraveling before the wrap has cured.


Rolls are individually vacuum-packed in foil bags.
4″ x 4′ roll (1.33 sq.ft/roll)
4” x 12’ roll (4.0 sq ft / roll)
4” x 27’ roll (9.0 sq ft / roll)
6” x 27’ roll (13.5 sq ft / roll)
9″ x 40′ roll (30.0 sq ft/roll)
NOTE: Alternative sizes may be available at an additional cost.


Color Black
Average thickness 30 mil (when cured)*
Application temperatures -20°F to 125°F(-29°C to 52°C)
Pipe operating temperatures -30°F to 250°F(-34°C to 121°C)**

*Thickness depends on amount of overlap.
**Trenton Wax-Tape wraps have a maximum operating temperature of 125°F (52°C)


  • Adds mechanical protection to soft coatings
  • Superior protection against soil stress
  • Protection against backfill
  • A “hard shell” coating that may be painted