PO (Polyolefin) Sponge Sheets
An olefin sponge with excellent liquid absorption tough enough to handle the strongest acidic or alkaline liquids.
Applications
Properties
| Item/Grade | PE | EVA |
|---|---|---|
| Average pore size (μm) | 25 | 25 |
| Porosity (%) | 74 | 77 |
| Water Retetion (wt%) | 290 | 340 |
| C hardness | 60 | 35 |
| Tensile strength (MPa) | 0.6 | 0.4 |
| Tensile elongation (%) | 70 | 70 |
| Heat resistance (Degree C) | 80 | 50 |
| Apparent specific gravity (g/cm3) | 0.26 | 0.23 |
*Values are reference values, not standard values.
Chemical Resistance
| Chemical name | Evaluation | |
|---|---|---|
| PE | EVA | |
| Sulfuric acid (50%) | Excellent | Excellent |
| Nitric acid (60%) | Excellent | Excellent |
| Sodium hydroxide (30%) | Excellent | Excellent |
| Sodium hypochlorite (5%) | Excellent | Excellent |
| Potassium permanganate (5%) | Excellent | Not compatible |
| Ethanol | Excellent | Conditional |
| Acetone | Excellent | Excellent |
| MEK | Excellent | Excellent |
| Ethyl acetate | Excellent | Excellent |
| PGMEA (propylene glycol monomethyl ether acetate) | Excellent | Excellent |
| Toluene | Conditional | Not compatible |
| Kerosene | Conditional | Conditional |
Standard Sizes
PE: 300 x 500 x 1 to 7 mm
EVA: 100 x 500 x 1 to 7 mm
Please contact us for custom parts or other sizes.
Test conditions: Judgment by soaking for 2 weeks at room temperature (about 20°C)
Judgment Criteria:
Excellent = Strength retention rate of 80% or more and dimensional change rate of less than 5%
Conditional = Strength retention rate of 60% or more and dimensional change rate of less than 10%
Not compatible = Less than 60% strength retention or 10% or more dimensional change
*Depending on the application and usage, please perform an immersion confirmation test in advance.
**Wash (according to the cleanliness control level) before use, depending on the application.
Filtration and absorption of gasses and liquids, liquid transition material (inspection kit), spacers for electronic components, humidity adjustment material (liquid volatilization), ink absorber, ink supply for stationery, wiping material.