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Denso Unveils Pipeline Coatings Line

Thursday, April 7, 2011

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Denso has just released Rock Shield, a diamond mesh wrap that protects pipeline coatings from damaging rock backfills or during pipeline construction through rocky terrains.

The product is manufactured from high-density polyethylene (HDPE) with a special expansion process to provide compressive strength and flexibility.

 Denso Rock Shield
 Rock Shield is manufactured from high-density polyethylene.

Rock Shield is manufactured to withstand, and stay flexible within, extreme weather conditions and temperatures. The product is available in a cost-effective Standard Duty (SD) version and a Heavy Duty (HD) version for jobs that require more protection.

Product Features

According to Denso, both Rock Shield SD and Rock Shield HD:

• Absorb the impact of uneven backfill;

• Protect pipe coating from protruding rocks in trenches;

• Minimize coating abrasion from pipe movement underground;

• Protect pipe during future excavations;

• Are unaffected by temperature extremes and wet weather;

• Maintain cathodic protection without inhibiting cathodic flow;

• Cushion against concrete weights; and

• Cut with a utility knife.

Installation

The manufacturer says Rock Shield installation is easy. For pipe diameters of 18 inches or less, the material is unrolled parallel to the pipe and wrapped in a longitudinal “cigarette” wrap. It is then fastened with tape, buckles or cable ties.

 Denso Rock Shield
Rock Shield HD is designed to protect pipeline coating.

For larger diameter pipes, sheets must be pre-cut to match pipe circumference, then wrapped spirally around the pipe and fastened as above.

Founded in London in 1883, Houston-based Denso North America is a global manufacturer of anti-corrosion coatings that include Protal liquid epoxies, Denso petrolatum tapes, mastics, primers, bitumen tapes, butyl tapes, hot applied tapes, and a full line of marine pile protection systems.

More information: www.densona.com.

   

Tagged categories: Pipeline; Protective coatings; Quality control

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