Loresco FlexFill™

FlexFill™ is designed for use around continous long-line impressed current anodes. It is a dust-free carbon product sized and surface modified for enhanced performance.


Loresco FlexFill™

Free Flowing Earth contact Backfill.

Loresco type FlexFill™ is designed specifically for continuous long-line anodes for impressed current cathodic protection.


Loresco type FlexFill™ is designed for use around continuous, long-line impressed current anodes. FlexFill™ is the result of extensive laboratory testing combining the rugged requirements of field installation with the demanding performance characteristics required for long-line anodes.

The production of FlexFill™ begins with the critical selection of a base carbon material which meets exacting standards. Calcination of the base material is strictly controlled according to Loresco quality control standards. Sizing of FlexFill™ during the manufacturing process is also carefully controlled to meet the requirements of conductive Backfill used with long-line impressed current anodes. All surfaces of FlexFill™ are modified with a conductive coating which maximizes the electronic flow between FlexFill™ and the long-line anode. In effect, this maximizes the life of the anode.

FlexFill™ is a performing Backfill medium designed specifically for use with impressed current long-line anodes. Advanced particle selection technology, enhanced surface modifications and rigid production controls all combine to ensure that FlexFill™ surpasses your performance requirements.


FlexFill™ is simple to install either by pouring or by subsurface displacement with gravity flow. FlexFill™ has been designed to be placed by either method with no additional steps necessary to create a successful conductive medium. No vibrating nor compacting is required.


  • Fixed Carbon: 99.25%
  • Ash: 0.25%
  • Moisture: 0.50%
  • Volatiles (950?): 0.0
  • Bulk Density: 68 lbs. per cubic foot
  • Particle Shape: Predominantly round
  • Particle Surface: All particles are surface modified for maximum electronic conductivity
  • Particle Sizing: 90% between 1mm and 5mm
  • No de-dusting oils are allowed during particle manufacturing.
  • Shipping Data

    Loresco products are shipped in 50 pound (22.7 kg) coated, woven polypropylene bags. Products may be stored outside for limited periods (not to exceed four hundred hours of sunlight). Pallets are available with 50 bags per pallet. Proven export packaging is also available.