Polyurethane Sponge
This special urethane sponge has a continuous fine pore structure, high porosity and excellent water absorption, heat resistance, and chemical resistance allowing it to be used in a wide range of environments.
■Excellent water absorption / retention and wear resistance:
Special urethane sponge of continuous pore structure that does not readily hydrolyze.
■Flexible in shape and size:
The sponges is applicable in all sorts of production machineries and devices in shape of roller, sheet and block form.
■Rigidity that PVA sponges cannot match:
It is capable of removing foreign materials that are almost fixed to the item to be cleaned.
■Softness:
Unlike PVA sponges, it remains soft when dried, sustaining water absorption and retention properties.
■Heat resistance:
Its heat resistance property allows the application at an ambient temperature of 100℃ or in hot water at 100℃.
| Washing | : | Electronic components (Hard disks, silicon wafers, semiconductor devices, photomasks, glass panels for LCD, FPD, etc.) |
|
Moisture absorption |
: | Glass (construction and automotive), electronic components (printed circuit boards and lead frames), vehicles (tires and floor mats), food products (packaged foods, glass bottles and laver), resin and film |
| Surface Coating | : | Resin, film (release agent and antistatic agent), paper (water-soluble adhesive) |
|
Material protection |
: | Optical Parts, Precision Parts |
| Item | Value |
|---|---|
| Avg. Pore Diameter (μm) | 25 |
| Apparent Density (g/cm3) |
0.21 |
| Porosity (%) | 83 |
| C Hardness (Roller/Sheet) | 11/7 |
| Water Retention (%) | 400 |
| Heat Resistance (AIR) (℃) | 130 |
| Heat Resistance (WATER) (℃) | 100 |
*Basic Physical Properties are not be guaranteed, just for your reference.
| Chemicals | Availability | |
|---|---|---|
| Sulfuric Acid 35% or less | ○ | |
| Hydrochloric Acid 15% or less | ○ | |
| Nitic Acid 5% or less | ○ | |
| Phosphoric Acid 35% or less | ○ | |
| Sodium Hypochlorite 1% or less | ○ | |
| Methanol | ○ | |
| Ethanol | ○ | |
| MEK | × | |
| Methyl Cellosolve | × | |
| Toluene | × | |
| Liquid Paraffin | ○ | |
| Silicone Oil | ○ | |
Sheet: 480 x 270 x 1~24 mm (Thickness can be provided by 1mm unit.)
Roller: Unit:mm
|
A: Outer Diameter |
B: Inner Diameter (Approximate inner diameter or PVC core) |
C: Length |
D: Length of PVC core |
|---|---|---|---|
| 40 | 22(16) | 600 | 660 |
| 50 | 26(20) | 600 | 660 |
| 60 | 26(20) |
600 |
660 |
(Dimensions listed above are only a part of our standard dimensions.)
(Please consult us about the custom sizes.)
Other Shapes:
*Please consult us for any customized version (size, hardness, pore diameter, etc.) you desire.
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