What Is Phenolic Foam Pipe Insulation?

Phenolic foam pipe insulation is a high-performance thermal insulation material made from phenolic resin through foaming, curing, and molding processes. It offers excellent thermal insulation, fire resistance, moisture resistance, and mechanical strength, making it widely used in HVAC systems, refrigeration pipelines, chemical process lines, and industrial insulation projects.

GFI’s phenolic pipe and sections adopt a closed-cell structure and are pre-formed into half-round segments according to the pipe diameter. They can be easily installed and optionally laminated with aluminum foil or fiberglass cloth to enhance moisture protection.

Key Features

Outstanding Thermal Insulation Performance

Phenolic foam provides a low thermal conductivity of 0.03 W/m·K, maintaining stable insulation efficiency under various conditions and significantly reducing heat loss.

Superior Fire Resistance

The product meets BS 476 Part 6 & 7 Class 0 fire rating requirements. It exhibits low smoke and low toxicity during combustion and delivers excellent flame-retardant performance, making it ideal for buildings and industrial facilities with strict fire safety standards.

Lightweight yet High Strength

With a density of only 80 kg/m³, the material remains structurally strong, delivering excellent compressive and tensile strength. It maintains its shape during installation and long-term operation.

Moisture-Resistant and Corrosion-Resistant

Featuring a high closed-cell rate and a low water absorption rate of 0.0025, it effectively prevents condensation and mold growth, while avoiding moisture-induced thermal degradation or corrosion of metal pipes.

Wide Operating Temperature Range

The working temperature spans from –250°C to +150°C, making it suitable for both cold and hot pipeline systems, including refrigeration lines and hot water circulation systems.

Environmental and Chemical Stability

The insulation contains no CFCs or HCFCs, has a neutral pH value of 6–7, does not corrode metals, and meets green building environmental requirements.

Typical Applications

HVAC Piping Systems

Thermal insulation for chilled water, hot water, supply air, and return air pipelines.

Refrigeration and Cold Storage

Maintains stable temperatures in low-temperature or constant-temperature systems and prevents condensation.

Industrial and Chemical Pipelines

Suitable for thermal networks, chemical media transportation systems, and industrial applications requiring high fire safety.

Building Energy-Efficiency Projects

Ideal for shopping malls, hospitals, office buildings, and large public facilities that must integrate fire protection with energy savings.

Technical Specifications

Product Advantages

• Exceptional fire-resistant performance, suitable for large public buildings and industrial projects with strict fire safety requirements.
• Long-term thermal stability with minimal performance degradation over time or humidity exposure.
• Easy installation with pre-formed half-round sections, reducing labor time and overall project cost.
• Eco-friendly formulation with no CFCs/HCFCs, meeting global green building standards.
• Highly durable and moisture-resistant closed-cell foam ensures consistent insulation performance throughout its service life.

Conclusion

With superior fire safety, stable insulation efficiency, and excellent mechanical durability, GFI’s phenolic foam pipe insulation is widely adopted in commercial and industrial buildings.
From high-standard energy-saving projects to demanding industrial environments, GFI delivers reliable phenolic insulation solutions to help customers achieve safer, more efficient HVAC and thermal management systems.