Pipeline rock guard shield--- Flexible mesh products are used in major pipeline projects to replace the thick sand collar that would traditionally have been placed to cushion the protective coating around a steel pipe.

GRD Protectamesh™ HD 

GRD Protectamesh HD ( pipeline rock guard shield  is a thick diamond mesh extruded from low density polyethylene designed to protect pipeline coatings. It cushions against the impact of rocks which could puncture the coating during backfilling and cause corrosion.