Flame-retardant PE foam Softron FR ND series
Flame-retardant foam material with excellent thermal insulation and heat retention properties
A foam with a closed-cell structure created by electron-beam crosslinking technology, contributing to the insulation and protection of automotive battery packs and cells while enhancing safety.
It is adopted not only for automotive applications but also for a wide range of uses, including internal cushioning materials for printers and insulation for air conditioners.
It is adopted not only for automotive applications but also for a wide range of uses, including internal cushioning materials for printers and insulation for air conditioners.
- Mobility
- Building / Infrastructure
- Battery temperature stabilization
- Flame retardant foam with excellent heat insulation performance
- Technical information
- Document download
Battery temperature stabilization
The life span and performance of batteries in electric vehicles (EVs) are greatly affected by temperature.
At low temperatures, the internal resistance of the battery cells increases, which affects the performance and life span of the batteries and may result in failure to fully charge the battery.
At high temperatures, the heat may affect the power density, reduce acceleration performance, or cause thermal runaway, which can damage the battery.
In order to achieve the battery’s intended performance and life span, the temperature inside the battery pack must be maintained at an appropriate level.
Flame retardant foam with excellent heat insulation performance
The Softlon electron-beam cross-linked polyolefin foam has low-thermal conductivity and has excellent insulation and heat retention properties.
Its flexibility acts as a buffer material and protects the battery cell from impact.
Softlon FR-ND is also fire retardant, enhancing safety inside the battery pack.
Technical information
Technical overview
Thermal insulation
Low thermal conductivity
Low thermal conductivityand excellent heat insulation / heat retention.
Flame retardant
Safety
Addition of flame retardant propertiesmaking it a safe material.
Shock/Vibration absorption
Safety & comfortable
It protects the LIB from shocks,suppresses vibration, and makes the interior
of the car more comfortable.
Light weight/Thinness
Low density and thin
Lightweight and space-saving.
Technical details
Thermal insulationIt has a low thermal conductivity of 0.0345W/mK and
high heat retention performance.
Flame retardantFlame retardant standard HF-1 equivalent.
*Non-halogen products can also be supplied.
Shock/Vibration absorptionDevelops flexibility and resilience in response to deformation
to act as a cushioning material and protect components
Light weight/Thinness
| Test item | Unit | Softlon FR-ND | Development | Test method |
||||
|---|---|---|---|---|---|---|---|---|
| #3002 | #3003 | #3004 | #3005 | Halogen free |
||||
| Halogen free | - | No | No | No | No | Yes | Internal | |
| Thickness | mm | 2 | 3 | 4 | 5 | 2 | JIS K6767 | |
| Density | kg/m³ | 33 | 33 | 33 | 33 | 30 | JIS K6767 | |
| Tensile strength | MD | kPa | 380 | 370 | 330 | 376 | 458 | JIS K6767 |
| TD | 223 | 210 | 230 | 200 | 252 | |||
| Elongation | MD | % | 185 | 200 | 224 | 201 | 143 | JIS K6767 |
| TD | 146 | 165 | 156 | 148 | 138 | |||
| Compression strength | 25% | kPa | 32 | 33 | 33 | 34 | 35 | JIS K6767 |
| Thermal shrinkage | MD | % | -1.2 | -1.2 | -0.9 | -1.0 | -1.7 | JIS K6767 |
| （70℃×22Hr） | TD | -0.2 | -0.2 | -0.4 | -0.2 | -0.6 | ||
| Flame retardancy | UL94 | HF-1 | HF-1 | HF-1 | HF-1 | HF-1 (internal test) |
UL94 | |
- Battery temperature stabilization
- Flame retardant foam with excellent heat insulation performance
- Technical information
- Document download
Battery temperature stabilization
The life span and performance of batteries in electric vehicles (EVs) are greatly affected by temperature.
At low temperatures, the internal resistance of the battery cells increases, which affects the performance and life span of the batteries and may result in failure to fully charge the battery.
At high temperatures, the heat may affect the power density, reduce acceleration performance, or cause thermal runaway, which can damage the battery.
In order to achieve the battery’s intended performance and life span, the temperature inside the battery pack must be maintained at an appropriate level.
Flame retardant foam with excellent heat insulation performance
The Softlon electron-beam cross-linked polyolefin foam has low-thermal conductivity and has excellent insulation and heat retention properties.
Its flexibility acts as a buffer material and protects the battery cell from impact.
Softlon FR-ND is also fire retardant, enhancing safety inside the battery pack.
Technical information
Technical overview
Thermal insulation
Low thermal conductivity
Low thermal conductivityand excellent heat insulation / heat retention.
Flame retardant
Safety
Addition of flame retardant propertiesmaking it a safe material.
Shock/Vibration absorption
Safety & comfortable
It protects the LIB from shocks,suppresses vibration, and makes the interior
of the car more comfortable.
Light weight/Thinness
Low density and thin
Lightweight and space-saving.Technical details
Thermal insulationIt has a low thermal conductivity of 0.0345W/mK and
high heat retention performance.
Flame retardantFlame retardant standard HF-1 equivalent.
Non-halogen products can also be supplied.
Shock/Vibration absorptionDevelops flexibility and resilience in response to deformation
to act as a cushioning material and protect components
Light weight/Thinness
| Test item | Unit | Softlon FR-ND | Development | Test method |
||||
|---|---|---|---|---|---|---|---|---|
| #3002 | #3003 | #3004 | #3005 | Halogen free |
||||
| Halogen free | - | No | No | No | No | Yes | Internal | |
| Thickness | mm | 2 | 3 | 4 | 5 | 2 | JIS K6767 | |
| Density | kg/m³ | 33 | 33 | 33 | 33 | 30 | JIS K6767 | |
| Tensile strength | MD | kPa | 380 | 370 | 330 | 376 | 458 | JIS K6767 |
| TD | 223 | 210 | 230 | 200 | 252 | |||
| Elongation | MD | % | 185 | 200 | 224 | 201 | 143 | JIS K6767 |
| TD | 146 | 165 | 156 | 148 | 138 | |||
| Compression strength | 25% | kPa | 32 | 33 | 33 | 34 | 35 | JIS K6767 |
| Thermal shrinkage | MD | % | -1.2 | -1.2 | -0.9 | -1.0 | -1.7 | JIS K6767 |
| （70℃×22Hr） | TD | -0.2 | -0.2 | -0.4 | -0.2 | -0.6 | ||
| Flame retardancy | UL94 | HF-1 | HF-1 | HF-1 | HF-1 | HF-1 (internal test) |
UL94 | |
Document download
- All
- Mobility
| Name | Type | File | Update | File |
|---|---|---|---|---|
| RoHS：Softlon FR-ND Test Report | RoHS | 2025-04-10 | Download279.87 KB | |
| SDS： Softlon FR-ND WT | SDS | 2024-11-20 | Download37.56 KB | |
| SDS： Softlon FR-ND BK | SDS | 2024-11-20 | Download37.36 KB | |
| RoHS：Softlon FR-ND Directive Non-use Report | RoHS | 2024-04-09 | Download189.31 KB | |
| Catalog 〈Mobility〉：Softlon FR-ND, Polyethylene electron beam cross-linked foam_SekisuiMobilitySolution | Mobility | 2023-09-11 | Download1.23 MB | |
| Properties list：Softlon FR-ND（thickness2.0、3.0、4.0、5.0mm／expansion times30） | Properties List | 2023-05-09 | Download676.55 KB |
