Rubber Sponge
OHJI design and produce speciallity products to meet customers requirement and support our daily life.
Covering a wide range of application fields for construction and various industry depending on their requirements and characteristics.
- HIGH-SPO
- KARU-SPO
- GETA★SPO
HIGH-SPO
CR sponge is suitably used for industrial applications such as packing materials and gaskets.
HIGH-SPO features heat insulation, shock absorption, sealing and sound absorption properties.
HIGH-SPO (Square cord)
HIGH-SPO (Round cord)
Material
Chloroprene rubber (sponge)
Manufacturable Size
- Round cord： ø5 ~ ø30（mm）
- Square cord： 3 x 10 ~ 30 x 40（mm）
- Profile shape： Cross section0.3 ~ 12cm²
Physical Properties
Normal state properties
| Tensile strength (MPa) | 0.60≦ |
|---|---|
| Elongation at break（%） | 300≦ |
| Hardness | E20±7 |
| Density（Mg/㎥） | 0.45±0.15 |
Physical property change with ageing（70℃×72hrs）
| Percentage change of tensile strength(%) | ≦-25 |
|---|---|
| Percentage change of elongation at break（%） | ≦-30 |
| Change in hardness | -5〜+15 |
Others
| Water absorption rate(wt%) | ≦5.0 |
|---|---|
| Ozone resistance | No cracks |
※The testing are performed in accordance with the methods specified in JIS K 6251, JIS K 6253-3, JIS K 6257, JIS K 6258, JIS K 6259 standard.
Water absorption rate: Immersion in purified water, 23℃×24hrs
Ozone resistance: 50pphm, 40℃×72hrs, 20% extension
KARU-SPO
Ultra-low-hardness rubber offers stable sealing performance due to the inherent softness, flexibility and conformability. KARU-SPO appears to be a perfect replacement material for many applications where softness and resilience are required.
Application
Sealing material, waterstop, shock absorber
Characteristics
Hardness = Zero (0) by durometer type E
Ultra-soft and ultra-lightweight for easy integration.
KARU-SPO features low compression set that is critical for long term sealing performance.
Ozone resistance
EPDM with excellent ozone resistance.
EPDM have wheather resistance even at outdoor environments.
Continuous vulcanizing by extrusion process
Longer lengths are possible to be manufactured.
Its bring good cost performance due to low specific gravity.
Physical Properties
| Unit | Measured value | Service conditions | |
|---|---|---|---|
| Compressive hardness (20% compression) |
MPa | 0.0052 | Test Piece：15×15 |
| g/㎡ | 53.4 | ||
| Compressive hardness (50% compression) |
MPa | 0.0139 | Test Piece：15×15 |
| g/㎡ | 142.1 | ||
| Tensile strength | MPa | 0.31 | JIS K 6251、No. 1 Dumbbell |
| Elongation at break | % | 330 | JIS K 6251、No. 1 Dumbbell |
| Ozone resistance | - | No cracks | JIS K 6259、40℃×96hr 50pphm、20% extraction |
| Specific gravity | - | 0.20 | |
| Compression set | % | 12 | JIS K 6262、Normal temperature×24hr |
The testing are performed in accordance with the methods specified in JIS K 6251, JIS K 6259-1, JIS K 6262 standard.
Ozone resistance: 50pphm, 40℃×96hrs, 20% extension
GETA★SPO
Effective airtight sealer for shutter bottom.
It can be cut into a necessary length or butted together to suit the width of the shutter.
Proper Application
- Shutters of Factories, Warehouses, Shops and Garages
- Airtight sealing material to fill up a opening under a shutter
Characteristics
With Double-Sided Tape
We apply double-sided adhesive tape along the entire length of the underside of "GETA★SPO".
Easy installation by just peeling off the backing sheet and sticking.
High Airtight and Adhesion to the Floor
It has excellent rubber elasticity properties and airtight ability at uneven floor.
It prevents unpleasant insects and dust from intruding to the inside of shutters by filling up shutter bottom.
Double Sided Tape on the Backside
Easy to Cut
Standard Specification
For Outdoor
| Material | EPDM |
|---|---|
| Size (Width x Height) |
30mm x 10mm、 50mm x 10mm、 50mm x 28mm、 75mm x 28mm |
| Standard Length | 12m |
| Double Sided Tape | Rubber Type Adhesive Tape |
All Products
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Rubber & Flake Lining
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Rubber Hose
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Rubber & Plastic Extrusion
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Rubber Molding