Polyimide Foam (PI Foam) refers to the molecular structure of the aryl heterocyclic polymer compounds containing imide groups, the main chain of the aryl ring and heterocyclic as the main structural unit, the beginning of the research is to meet the aerospace field for heat-resistant, high-strength, lightweight structural materials for the urgent needs of the polymer materials, polyimide is the best polymer materials can be used in practice the best overall performance, is located in the polymer new material Polyimide has excellent performance.
Polyimide Foam has excellent performance, its high temperature resistance, low temperature resistance, strong insulation, coefficient of thermal expansion similar to that of metals, excellent mechanical properties and processing performance, non-toxic, intrinsic flame retardant and other characteristics, so that it is widely used in various fields and play an irreplaceable role.
| Flexible Polyimide Foam | Rigid Polyimide Foam | ||||||
| 1 | 2 | 3 | 4 | 1 | 2 | ||
| I. Physical and Chemical Properties | Apparent Density, kg/m³ | 5.0–6.0 | 6–10 | 10–15 | 15–32 | 70–110 | 110–200 |
| Thermal Conductivity, W/m·K (23°C ±2°C) | ≤0.04 | ||||||
| Moisture Absorption Rate (Relative Humidity 95%±3%, temperature 49℃±2℃, time 96 h), % | ≤5 | ||||||
| Radiation resistance | No significant changes in appearance after receiving a cumulative radiation dose of 10,000 Gy. | After receiving a cumulative radiation dose of 200,000 Gy , no significant changes in appearance. | |||||
| Temperature resistance | -55°C for 12 hours: no cracking; 300°C for 12 hours: surface remains non-tacky. | -55°C for 12 hours, no cracking; 300°C for 12 hours, no surface tackiness. | |||||
| Acid Resistance (20% Hydrochloric Acid) | Immersion for 24 hours, no surface changes | ||||||
| Alkali resistance (10% sodium hydroxide) | Immersion for 24 hours, no surface changes | ||||||
| Oil resistance (120# gasoline) | Soaked for 24 hours, no change in surface volume | ||||||
| Tensile strength, MPa | ≥0.05 | ≥0.06 | ≥0.07 | ≥0.08 | ≥0.2 | ≥0.3 | |
| Permanent Compression Deformation, % | ≤30 | ≤28 | ≤25 | ≤20 | |||
| Compressive strength (10%), MPa | ≥0.35 | ≥0.45 | |||||
| II. Material Toxicity | Room Temperature Toxicity | Meets requirements of GJB11.2 and GJB11.3 | |||||
| At-Room-Temperature Smoke and Toxicity | Complies with FTPc regulations | ||||||
| III. Fire Protection Performance | (Limiting) Oxygen Index, % | ≥32 | ≥40 | ||||
| Smoke Density (Dm) (Flameless Mode, Flame Mode) | ≤100 | ≤200 | |||||
| Flame resistance | Self-extinguishes within 1 second after removal from flame source with no melting droplets | ||||||
| Low Flame Spread | Meets FTPc regulation requirements | ||||||
| IV. Combustion Performance | Material latent heat (combustion heat value), MJ/m² | ≤45 | |||||
| V. Construction Performance | Workability | Dust-free, easy to cut, easy to package, meeting user construction process requirements | |||||
| VI. Acoustic Performance | Noise Reduction Coefficient | ≥0.6 | |||||
Max size: 1.25*2.5m
Flame retardant, A-0 level fire prevention
Ultra-low thermal conductivity (≤ 0.004 (W- m-1-K-1))
Non-absorbent, anti-condensation, non-failure in the presence of water
High and low temperature resistance (-260℃-350℃)
VOC is zero, no smell
Environmentally friendly, non-toxic
Good toughness, good resilience, not easily damaged
Density as light as 5kg/m3
Acid and alkali resistance oil resistance
UV resistance
Good weather resistance
No slagging, no mould
Ultra-low smoke emission, smoke density less than 15
| Item | Test Methods | parameters | ||
| Physical and Chemical Properties | Apparent density (kg/m3) | GB/T6343-2009 | 8±1KG | |
| Thermal conductivity （W* m-1*K-1） | GB/T10295-2008 | ≤0.037 | ||
| Continuous temperature to use | recommended value | -260°C to 250°C | ||
| Moisture absorption rate (humidity 95%, temperature 25℃) | GB/T20312-2006 | ≤3% | ||
| aperture ratio | GB/T10799-2008 | ≥95% | ||
| absorption | Standing tone wave test (full band) | ≥0.75 | ||
| Surface insulation ( Ω .cm) | GB/t 31838.2-2019 | 1.21E+16 | ||
| Electrical strength (kv/mm) | ASTM D149-20 | 1.87 | ||
| Tensile strength (kPa) | ASTM D3574-17 | >45 | ||
| Compression strength (kPa) | GB/T6344-2008 | 4.83kPa (25% deformation) | ||
| Thermal decomposition temperature/°C | GB/T19466.2-2004 | 550°C | ||
| Toxicity | VOC | Gas phase mass spectrometer (SGS testing) | 0 | |
| Toxicity of ambient releases and pyrolysis products | 2010FTP Rules Annex 1 Part 2 | lower toxicity | ||
| smoke density | <15 | |||
| flue gas toxicity | fit | |||
| Fire Resistance | flame retardant | UL 94-2013 | V0 | |
| Limiting oxygen index (%) | GB8410-2006 | >37 | ||
| Self-extinguishing time | 0 second | |||
| Combustion Performance | ||||
| Burning length | 0 mm | |||
| droplet | no | |||
• Effectively reduces the weight of the hull, thereby lowering fuel consumption and increasing cargo capacity
• Applications:
Thermal and acoustic insulation systems for naval vessels;
Cabin noise reduction and insulation ventilation pipe insulation
Ceiling noise reduction and muffling
• Available in negative and positive types, achieving sub-micrometre resolution.
When combined with pigments or dyes, it can be used for colour filter films,
significantly simplifying the manufacturing process.
• Employed as passive or active waveguide materials, optical switching materials, etc. Fluorinated polyimides exhibit transparency across the telecommunications wavelength range. Utilising polyimide as the chromophore matrix enhances material stability.
• Thermal insulation: Thermal conductivity below 0.033 W/m·K ensures normal operation of power batteries under extreme heat and cold conditions. Simultaneously, it provides thermal isolation to suppress heat propagation during thermal runaway events.
• Fire resistance: Self-extinguishing upon removal from flame, with ultra-low smoke emission to extend escape time during fire incidents.
• Waterproof and moisture-resistant: Non-absorbent, providing permanent protection against humidity
• Shock absorption: Soft foam exhibits excellent cushioning properties, effectively absorbing stress from battery swelling
• Wear-resistant self-lubrication: for components such as bearings
• Application in wave-transmitting materials, e.g., antenna radomes – a wave-transmitting device serving multiple functions including airflow management, thermal protection, wave transmission, and load-bearing
• Dielectric material: accelerates signal propagation speed, reduces signal interference and inductive coupling, facilitating device miniaturisation and densification.
• Orientation agents for liquid crystal displays: Polyimide holds significant importance as an alignment material in TN-LCD, STN-LCD, TFT-LCD, and future ferroelectric liquid crystal displays
• Polyimide foam serves as impact-absorbing padding in protective helmets, suitable for use within spacecraft living quarters and high-vacuum environments
• Tactical weaponry: employed in bomb bay deceleration load-bearing plates, high-insulation connectors for nozzle thermal sleeves, launch mounts, warhead fuse insulating caps, and high-pressure insulation for tank fuel tanks
• Communication equipment: utilised in relay frames and housings, gyroscope bases, insulating bases for signal transmitters, and flexible printed circuits
Aerospace-grade quality control
Stable production capacity
Customizable density and thickness
CNC precision cutting service
OEM & private label support
Fast global shipping
Technical consultation available
We support industrial and aerospace-level project requirements.
Property | Polyimide Foam | PU Foam | Phenolic Foam | Rock Wool |
Max Temp | 250°C | 120°C | 150°C | 600°C |
Cryogenic Resistance | Excellent | Poor | Moderate | Poor |
Flame Retardancy | UL94 V0 | Needs additive | Good | Non-combustible |
Smoke Emission | Very Low | High | Medium | Low |
Weight | Ultra-Light | Light | Medium | Heavy |
Aerospace Suitable | Yes | No | Limited | No |
Yes. PI foam is inherently flame retardant and meets UL94 V0 and A0 fire rating standards. It is self-extinguishing with zero dripping.
Continuous service temperature ranges from -260°C to 250°C, with thermal decomposition above 550°C.
It has low moisture absorption (<3%) and excellent anti-condensation performance.
Aerospace, aviation, marine, metro systems, high-end construction, battery insulation, and industrial acoustic control.
Yes. Density range from 5–200 kg/m³ and custom thicknesses are available.
Polyimide Foam (PI Foam) refers to the molecular structure of the aryl heterocyclic polymer compounds containing imide groups, the main chain of the aryl ring and heterocyclic as the main structural unit, the beginning of the research is to meet the aerospace field for heat-resistant, high-strength, lightweight structural materials for the urgent needs of the polymer materials, polyimide is the best polymer materials can be used in practice the best overall performance, is located in the polymer new material Polyimide has excellent performance.
Polyimide Foam has excellent performance, its high temperature resistance, low temperature resistance, strong insulation, coefficient of thermal expansion similar to that of metals, excellent mechanical properties and processing performance, non-toxic, intrinsic flame retardant and other characteristics, so that it is widely used in various fields and play an irreplaceable role.
| Flexible Polyimide Foam | Rigid Polyimide Foam | ||||||
| 1 | 2 | 3 | 4 | 1 | 2 | ||
| I. Physical and Chemical Properties | Apparent Density, kg/m³ | 5.0–6.0 | 6–10 | 10–15 | 15–32 | 70–110 | 110–200 |
| Thermal Conductivity, W/m·K (23°C ±2°C) | ≤0.04 | ||||||
| Moisture Absorption Rate (Relative Humidity 95%±3%, temperature 49℃±2℃, time 96 h), % | ≤5 | ||||||
| Radiation resistance | No significant changes in appearance after receiving a cumulative radiation dose of 10,000 Gy. | After receiving a cumulative radiation dose of 200,000 Gy , no significant changes in appearance. | |||||
| Temperature resistance | -55°C for 12 hours: no cracking; 300°C for 12 hours: surface remains non-tacky. | -55°C for 12 hours, no cracking; 300°C for 12 hours, no surface tackiness. | |||||
| Acid Resistance (20% Hydrochloric Acid) | Immersion for 24 hours, no surface changes | ||||||
| Alkali resistance (10% sodium hydroxide) | Immersion for 24 hours, no surface changes | ||||||
| Oil resistance (120# gasoline) | Soaked for 24 hours, no change in surface volume | ||||||
| Tensile strength, MPa | ≥0.05 | ≥0.06 | ≥0.07 | ≥0.08 | ≥0.2 | ≥0.3 | |
| Permanent Compression Deformation, % | ≤30 | ≤28 | ≤25 | ≤20 | |||
| Compressive strength (10%), MPa | ≥0.35 | ≥0.45 | |||||
| II. Material Toxicity | Room Temperature Toxicity | Meets requirements of GJB11.2 and GJB11.3 | |||||
| At-Room-Temperature Smoke and Toxicity | Complies with FTPc regulations | ||||||
| III. Fire Protection Performance | (Limiting) Oxygen Index, % | ≥32 | ≥40 | ||||
| Smoke Density (Dm) (Flameless Mode, Flame Mode) | ≤100 | ≤200 | |||||
| Flame resistance | Self-extinguishes within 1 second after removal from flame source with no melting droplets | ||||||
| Low Flame Spread | Meets FTPc regulation requirements | ||||||
| IV. Combustion Performance | Material latent heat (combustion heat value), MJ/m² | ≤45 | |||||
| V. Construction Performance | Workability | Dust-free, easy to cut, easy to package, meeting user construction process requirements | |||||
| VI. Acoustic Performance | Noise Reduction Coefficient | ≥0.6 | |||||
Max size: 1.25*2.5m
Flame retardant, A-0 level fire prevention
Ultra-low thermal conductivity (≤ 0.004 (W- m-1-K-1))
Non-absorbent, anti-condensation, non-failure in the presence of water
High and low temperature resistance (-260℃-350℃)
VOC is zero, no smell
Environmentally friendly, non-toxic
Good toughness, good resilience, not easily damaged
Density as light as 5kg/m3
Acid and alkali resistance oil resistance
UV resistance
Good weather resistance
No slagging, no mould
Ultra-low smoke emission, smoke density less than 15
| Item | Test Methods | parameters | ||
| Physical and Chemical Properties | Apparent density (kg/m3) | GB/T6343-2009 | 8±1KG | |
| Thermal conductivity （W* m-1*K-1） | GB/T10295-2008 | ≤0.037 | ||
| Continuous temperature to use | recommended value | -260°C to 250°C | ||
| Moisture absorption rate (humidity 95%, temperature 25℃) | GB/T20312-2006 | ≤3% | ||
| aperture ratio | GB/T10799-2008 | ≥95% | ||
| absorption | Standing tone wave test (full band) | ≥0.75 | ||
| Surface insulation ( Ω .cm) | GB/t 31838.2-2019 | 1.21E+16 | ||
| Electrical strength (kv/mm) | ASTM D149-20 | 1.87 | ||
| Tensile strength (kPa) | ASTM D3574-17 | >45 | ||
| Compression strength (kPa) | GB/T6344-2008 | 4.83kPa (25% deformation) | ||
| Thermal decomposition temperature/°C | GB/T19466.2-2004 | 550°C | ||
| Toxicity | VOC | Gas phase mass spectrometer (SGS testing) | 0 | |
| Toxicity of ambient releases and pyrolysis products | 2010FTP Rules Annex 1 Part 2 | lower toxicity | ||
| smoke density | <15 | |||
| flue gas toxicity | fit | |||
| Fire Resistance | flame retardant | UL 94-2013 | V0 | |
| Limiting oxygen index (%) | GB8410-2006 | >37 | ||
| Self-extinguishing time | 0 second | |||
| Combustion Performance | ||||
| Burning length | 0 mm | |||
| droplet | no | |||
• Effectively reduces the weight of the hull, thereby lowering fuel consumption and increasing cargo capacity
• Applications:
Thermal and acoustic insulation systems for naval vessels;
Cabin noise reduction and insulation ventilation pipe insulation
Ceiling noise reduction and muffling
• Available in negative and positive types, achieving sub-micrometre resolution.
When combined with pigments or dyes, it can be used for colour filter films,
significantly simplifying the manufacturing process.
• Employed as passive or active waveguide materials, optical switching materials, etc. Fluorinated polyimides exhibit transparency across the telecommunications wavelength range. Utilising polyimide as the chromophore matrix enhances material stability.
• Thermal insulation: Thermal conductivity below 0.033 W/m·K ensures normal operation of power batteries under extreme heat and cold conditions. Simultaneously, it provides thermal isolation to suppress heat propagation during thermal runaway events.
• Fire resistance: Self-extinguishing upon removal from flame, with ultra-low smoke emission to extend escape time during fire incidents.
• Waterproof and moisture-resistant: Non-absorbent, providing permanent protection against humidity
• Shock absorption: Soft foam exhibits excellent cushioning properties, effectively absorbing stress from battery swelling
• Wear-resistant self-lubrication: for components such as bearings
• Application in wave-transmitting materials, e.g., antenna radomes – a wave-transmitting device serving multiple functions including airflow management, thermal protection, wave transmission, and load-bearing
• Dielectric material: accelerates signal propagation speed, reduces signal interference and inductive coupling, facilitating device miniaturisation and densification.
• Orientation agents for liquid crystal displays: Polyimide holds significant importance as an alignment material in TN-LCD, STN-LCD, TFT-LCD, and future ferroelectric liquid crystal displays
• Polyimide foam serves as impact-absorbing padding in protective helmets, suitable for use within spacecraft living quarters and high-vacuum environments
• Tactical weaponry: employed in bomb bay deceleration load-bearing plates, high-insulation connectors for nozzle thermal sleeves, launch mounts, warhead fuse insulating caps, and high-pressure insulation for tank fuel tanks
• Communication equipment: utilised in relay frames and housings, gyroscope bases, insulating bases for signal transmitters, and flexible printed circuits
Aerospace-grade quality control
Stable production capacity
Customizable density and thickness
CNC precision cutting service
OEM & private label support
Fast global shipping
Technical consultation available
We support industrial and aerospace-level project requirements.
Property | Polyimide Foam | PU Foam | Phenolic Foam | Rock Wool |
Max Temp | 250°C | 120°C | 150°C | 600°C |
Cryogenic Resistance | Excellent | Poor | Moderate | Poor |
Flame Retardancy | UL94 V0 | Needs additive | Good | Non-combustible |
Smoke Emission | Very Low | High | Medium | Low |
Weight | Ultra-Light | Light | Medium | Heavy |
Aerospace Suitable | Yes | No | Limited | No |
Yes. PI foam is inherently flame retardant and meets UL94 V0 and A0 fire rating standards. It is self-extinguishing with zero dripping.
Continuous service temperature ranges from -260°C to 250°C, with thermal decomposition above 550°C.
It has low moisture absorption (<3%) and excellent anti-condensation performance.
Aerospace, aviation, marine, metro systems, high-end construction, battery insulation, and industrial acoustic control.
Yes. Density range from 5–200 kg/m³ and custom thicknesses are available.
