Our products

  • Diameter Ø150 mm to Ø1800 mm
  • Ring stiffness up to SN7
  • Standard Liner, adapted for the most common dimensions and SN classes
  • Flex Liner, adapts itself to variations in diameter
  • Special Liner, which we specially design for your challenging needs.
  • UV light curing saves energy and the environment
  • Two effective installation methods: inversion or winching. Read more about The installation methods.

Inpipe’s liners are constructed in several layers. On the inside and outside are foils surrounding a number of layers of corrosion resistant fibreglass-reinforced polyester.

Common areas of use

  • Wastewater pipelines
  • Gravity pipes
  • Pressure lines
  • Road and railway culverts

For pipes with an aggressive chemical environment or at abnormally high temperatures, we can offer vinyl esters.

We continuously test our liners to ensure that they fulfil the requirements set for the area of use.

All Inpipe liners are manufactured to order and completed as far as possible for installation. Everything to make it easier for you, fulfil your design requirements and reduce waste.


Inpipe Liner material characteristics
Resin Unsaturated Polyester Class 3
Glass fibre ECR-Glass
Foil Co-extruded thermo plastics PA/PP/PA/PUR
Wall thickness 2-12mm
Residual styrene maximum 2%
Glass content minimum 43%


Inpipe Liner data

Property Typical value Test method
Short term E-modulus 9500-18000 MPa ISO 1228 / ISO 53769-3 /
ISO 11296-4 / ISO 178
Long term (50 year) E-modulus 6700-12900 MPa ISO 1228 / ISO 53769-3 /
ISO 11296-4 / ISO 178
Long term (100 year) E-modulus 6400-12100 MPa ISO 1228 / ISO 53769-3 /
ISO 11296-4 / ISO 178
Flex stress at first break 220-240 N/mm2 ISO 178 / ISO 11296-4
Flex strain at first break 2,5-3,5% ISO 178 / ISO 11296-4
Creep factor 50 years 0,70-0,72 ISO 899-2 / ISO 11296-4
Ultimate Tensile strength 130-300 N/mm2 ISO 527-4 / ISO 11296-4
Ultimate tensile elongation 1,4-2% ISO 527-4 / ISO 11296-4
Water tightness Impermeable ISO 1610
Gap % of inner diameter of host pipe <0,1%
Test of chemical resistance OK ISO 175
High pressure abrasion test "Hamburg model" OK
Abrasion test "Darmstadt model" OK DIN 19565