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BKP Berolina Polyester GmbH & Co. KG
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  5. Berolina - HF-Liner

Berolina - HF-Liner

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Reduction of the structurally required wall thickness due to higher mechanical characteristics.

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gravity sewer
reinforcement material
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Faster curing and easier handling
Due to the special construction of the glass sheets and higher glass content, the Berolina-HF-Liner achieves higher mechanical characteristics resulting in a reduction of the structurally required wall thickness compared to the normal Berolina-Liner. The resulting lower weight allows easier handling.

The Berolina-HF-Liner is also available with Integrated Enhanced Security (IES) – a smooth slip film is no longer necessary for the pulling in with the result that installation time can be reduced by up to 60 minutes.

Berolina-HF-Liner: Area of application

Gravity sewers

  • Circular profiles: ID 400 (16“) – ID 1,600 (63“)
  • Ovoid cross-sections: 350/525 mm (14“/21“) – 1,200/1,800 mm (48“/71“)

Other sizes on request.

Berolina-HF-Liner with IES: Area of application

Gravity sewers

  • Circular profiles: DN 150 – DN 600
Integrated Enhanced Security (IES) can also be offered as a substitute for the conventional smooth slip film, for less damaged sewers. The installation time can be reduced.
Berolina-HF-Liner: Advantages
  • Higher mechanical characteristics compared to the Berolina-Liner
  • Reduction of the structurally required wall thickness compared to the Berolina-Liner
  • Seamless design
  • Particular extensibility
  • Ready for installations up to 500 metres (DN 200 – DN 300 up to 1,000 meters)
  • Can be stored for at least 5 months
  • Fast curing (particularly compared to felt liners)
  • Smooth surface
  • Fast curing (particularly compared to felt liners)
  • Abrasion protection layer
  • Bridging small profile and cross-section changes
  • Resin types depending on requirements (polyester, vinyl ester, polystyrene-free)
  • Quality management in accordance with EN ISO 9001:2015
Berolina-HF-Liner with IES: Additional advantages

Integrated Enhanced Security (available up to DN 600)

  • Can be a substitute for smooth slip film
  • Reducing installation time
Integrated Enhanced Security (IES) can also be offered as a substitute for the conventional smooth slip film, for less damaged sewers. The installation time can be reduced.
Reinforcement material

Non-crimp complex E-CR according to EN 14020-1, EN 14020-2 and EN 14020-3

Resins

Unsaturated polyester resins (UP resins)

  • Type 1140 according to DIN 16946-2
  • Group 3 according to DIN 18820-1
  • Group 4 according to EN 13121-1

Vinyl ester resins (VE resins)

  • Type 1310 according to DIN 16946-2
  • Group 5 according to DIN 18820-1
  • Group 7 B according to EN 13121-1

Styrene-free resin

Technical data

Approved for UP and VE resins

Density after curing (EN ISO 1183-2): 1.59g/cm³ (± 0.5 g/cm³)
Glass fibre content (EN ISO 1172 / by mass): 53% (± 8%)
Glass weight per unit area (per mm load-bearing wall thickness)*: 900g/m² (+150/-100g/m²)

Short-term ring stiffness (EN 1228)*: ≥ 17,000 N/mm²
Short-term modulus of elasticity (EN ISO 178)*: ≥ 17,000 N/mm²
Short-term flexural strength (EN ISO 178)*: ≥ 280 N/mm²

Reduction factor for long-term values (EN 761): A = 1.19

Long-term ring stiffness (EN 1228)*: ≥ 14,200 N/mm²
Long-term flexural strength (EN ISO 178)*: ≥ 235 N/mm²

Laminate design: Multi-layer, seemless and overlapping in longitudinal direction; overlaps are offset

Linear expansion during calibration: ~ 0.0%
Allowable diameter tolerances of the host pipes: DN ≤ 800: ± 5%; DN > 800: ± 2%