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Description

PIPE-GUARD Rock Shield III is a flexible padding designed especially for the protection of the corrosion coating on pipelines when rocky backfill is encountered.

Advantages

PIPE-GUARD Rock Shield III provides the padding required for pipe coatings without the concern of blocking out cathodic protection.
PIPE-GUARD Rock Shield III has a flat interior surface that will not mar soft coatings.

PIPE-GUARD Rock Shield III saves money at every step of the operation through its convenience and ease of application.

PIPE-GUARD Rock Shield III’s flexibility, even at colder temperatures, allows for quick and easy application lengthwise or cigarette wrap using tape or strapping products.

PIPE-GUARD Rock Shield III helps protect the coating from the abrasive movement of the pipe in the ground over long periods.

Availability

PIPE-GUARD Rock Shield III is readily available. It is supplied in a standard roll size of 5’ wide x 100’ roll long weighing 77 lbs.

Benefits

Absorbs impact of uneven backfill

Protects pipe coating from jagged rocks in trench.

Helps prevent abrasions from pipe movement underground.

Protects pipe from future excavations.

Material is lightweight and easy to handle.

Product Data

Parameter	English	Metric	Test Method
Thickness, minimum Nominal	0.145" 0.160"	3.68 mm 4.0 mm	ASTM D4801
Weight, minimum Nominal	0.144 lbs/sq ft 0.155 lbs/sq ft	800 kg/m2 750 kg/m2
Tensile Strength, minimum	2757 lbs/sq in	19.0 N/mm2	ASTM D1682 modified
Toughness (weak strand) Breakload x elongation, min	7	7
Compressive Strength, nominal	200 lbs/sq in	140,000 kg/m2	ASTM D1621 modified
Impact Resistance, limestone drop	Pass	Pass	ASTM G13
Impact Resistance	Rockshield protected		ASTM G14(1)
Type of Coating - no holiday at:	No holiday at:	No holiday at:
Fusion Bonded Epoxy	22.9"	58.2 cm
Polyethylene Tape	21.9"	55.6 cm
Coal Tar Enamel	42.0" (2)	106 cm
Specific Gravity, minimum Maximum	35 lbs/cu ft 43 lbs/cu ft	0.56 g/cm3 0.69 g/cm3
Strand Angle, minimum Maximum	80º 90º	80º 90º
Strand Count, minimum Maximum	3.1/inch 3.7/inch	1.22/cm 1.45/cm
Resin Density, minimum	58.6 lbs/cu ft	0.94 g/cm3	ASTM D1505
Resin Melt Index, minimum	0.22 lbs/ 10 minutes	1.00 g/ 10 minutes	ASTM 1238A