polyurethane thermal insulation solution

Designed for high pressure capability to 3000 m
ContraTherm® B35 is a tough elastomer with excellent temperature stability to 80 °C
Pour-in-place solution using tried and tested methodology
B35 primer is only required for field joints
Density is 1130 kg/m³ – 1170 kg/m³ when cured
Compatible with other AIS insulation solutions.

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Lower temperature flowlines
- Delivers reliable thermal insulation to maintain flow assurance in lower temperature production systems
Jumpers and spools
- Provides dependable thermal protection for subsea connections between equipment and pipelines
Subsea pipelines
- Minimises heat loss to help reduce the risk of hydrate formation and wax deposition
Tie-back developments
- Supports efficient hydrocarbon transport across longer subsea distances in lower temperature fields
Deepwater infrastructure
- Proven performance for subsea assets operating in water depths of up to 3,000 m.

Maximum service depth
Maximum operating temperature
Minimum temperature
Density

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ContraTherm® B35
- 3000 m
- 80 °C
- n/a
- 1170 kg/m³

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ContraTherm® B85
- 3000 m
- 204 °C
- -40 °C
- 980 kg/m³

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ContraTherm® C25
- 3000 m
- 150 °C
- -40 °C
- 800 – 880 kg/m^³

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ContraTherm® C55
- 3000 m
- 150 °C
- -60 °C
- 760 kg/m³

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Breadcrumb

ContraTherm® B35

Reliable flow assurance for lower temperature subsea fields

ContraTherm® B35 is a cost-effective thermal insulation solution for lower temperature subsea developments, delivering reliable flow assurance without compromising quality. Its field-proven polyurethane formulation minimises hydrate formation and wax build-up while providing dependable performance in water depths of up to 3,000 m, making it an ideal choice for complex subsea infrastructure.

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Benefits

The trusted solution for subsea insulation

ContraTherm® B35 is a proven thermal insulation solution, ideal for flow assurance of complex subsea applications requiring wet application or moulded product configurations. Developed through AIS' extensive expertise in subsea insulation systems, ContraTherm® B35 has been tested in accordance with ISO 12736:2023.

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Resistant to high pressures

Proven resistance to hydrostatic pressures, ContraTherm® B35 is designed for high pressure capability to 3000 m.

High dimensional tolerance

Using a tried and tested pour-in-place application method, B35 allows for high dimensional tolerances on critical infrastructure.

Robust

Due to the excellent mechanical properties, B35 is a robust material that can be utilised in challenging mechanical environments.

Specifications

Designed for high pressure capability to 3000 m
ContraTherm® B35 is a tough elastomer with excellent temperature stability to 80 °C
Pour-in-place solution using tried and tested methodology
B35 primer is only required for field joints
Density is 1130 kg/m³ – 1170 kg/m³ when cured
Compatible with other AIS insulation solutions.

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Meet low temperature project requirements with ContraTherm® B35

Watch our video to hear from Vicky James, Head of Subsea Sales, who talks us through the ContraTherm® range, and how AIS tailors subsea insulation to meet specific project requirements. The video also delves into why ContraTherm® B35 helps operators avoid over-specification and meet the needs of lower temperature projects.

Watch here

Applications

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Lower temperature flowlines
- Delivers reliable thermal insulation to maintain flow assurance in lower temperature production systems
Jumpers and spools
- Provides dependable thermal protection for subsea connections between equipment and pipelines
Subsea pipelines
- Minimises heat loss to help reduce the risk of hydrate formation and wax deposition
Tie-back developments
- Supports efficient hydrocarbon transport across longer subsea distances in lower temperature fields
Deepwater infrastructure
- Proven performance for subsea assets operating in water depths of up to 3,000 m.