PIPE-GUARD Rock Shield III

Protects the corrosion coating on pipelines from rocky backfill.
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PIPE-GUARD Rock Shield III
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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

EnglishMetricTest 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


(1) Using at 4 lb weight
(2) Maximum height of test apparatus