Alternative and trade names
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A protective fiber glass coating (hereinafter referred to as PFC) for steel pipes and bends with an outer diameter of 219 to 1420 mm, designed to protect the pipelines corrosion-resistant coating from mechanical damage during construction, reconstruction, repair and during operation. By designation, PFC is applied to the pipe in two versions: general “G” or reinforced “R”.

This material data has been provided by METACLAY .

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts





23.0 °C

1.45 - 1.75 g/cm³

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GOST 15139-69



Charpy impact energy

23.0 °C

5000 J

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Flexural strength

23.0 °C

136 MPa

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Min., ISO 14125:1998

Tensile strength

23.0 °C

500 MPa

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Min., ISO 527-5/Tape



Coefficient of thermal expansion

23.0 °C

1.5E-5 - 2.4E-5 1/K

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GOST 15173-70

Specific heat capacity

23.0 °C

900 - 1300 J/(kg·K)

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GOST Р 57712-2017

Thermal conductivity

23.0 °C

0.3 - 0.4 W/(m·K)

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GOST Р 57830-2017



Electrical resistivity

23.0 °C

1.50E+18 Ω·m

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GOST 6433.2-71

Technological properties

Application areas

KOLCHUGA PFCR is designated to protect the pipelines and bends insulation coating from mechanical damage when they are laid by trenchless method, trench methods and overhead laying in the following types of site: 1. Mountainous terrain and rough ground conditions, 2. Underwater crossings, 3. Permafrost soils, 4. Pipeline sections equipped with ballasting and fixing means for pipelines without using lining means, 5. Crossings under railways and roads, 6. Other sites requiring additional protection against damage to the pipelines surface and pipe insulation.


Glass Fiber