PO Sponge

Product Name

PO Sponge

Piolas

Overview

An olefin sponge with excellent liquid absorption that can be used with strong acid or strong alkaline liquids.

Characteristics

In addition to resistance to strong acids and strong alkalis, it can also be used with oxidizing agents and some solvents.

It is suitable as absorption, holding material of various liquids.

As it is an integral structure, there is no fluffing or shedding unlike the fiber type.

In addition to filter applications, it can be applied to various applications using fine continuous pores.

By minute continuous pore structure, we show superior liquid absorptivity.

As it is a soft sponge, it has excellent followability to the workpiece.

  

Piolas Sheet

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, etc.

Wiping material

Material

Product type Material
Piolas PE Sheet Polyethylene (LLDPE)
Piolas EVA sheet Ethylene / vinyl acetate copolymer

Basic Physical Properties

Item\Part number PE EVA
Average pore size (μm) 25 25
Porosity (%) 74 77
保水率 (wt%) 290 340
C hardness 60 35
Tensile strength (MPa) 0.6 0.4
Tensile elongation (%) 70 70
Heat resistance (℃) 80 50
Apparent specific gravity (g/cm3) 0.26 0.23

*Values are reference values, not standard values.

Standard imensions

PE  :  300 x 500 x 1~7 mm
EVA  :  100 x 500 x 1~7 mm

*For other sizes, please contact us.

Chemical Resistance

Chemical name Evaluation
PE EVA
Sulfuric acid (50%)
Nitric acid (60%)
Sodium hydroxide (30%)
Sodium hypochlorite (5%)
Potassium permanganate (5%) ×
Ethanol
Acetone
MEK
Ethyl acetate
PGMEA
(propylene glycol monomethyl
ether acetate)
Toluene ×
Kerosene
Test conditions: Judgment by soaking for 2 weeks at room temperature (about 20°C)
Judgment Criteria: ○ = Strength retention rate of 80% or more and dimensional change rate of less than 5%
△ = Strength retention rate of 60% or more and dimensional change rate of less than 10%
× = 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.

  

Piolas Roller

Application

Plating and etching processes for printed circuit boards, lead frames, shadow masks, etc.

Drainage, transport, and cleaning in the cleaning process of glass substrates for flat panels

Draining, conveying, and applying chemicals in various manufacturing processes

Material:Polyolefin sponge

Basic Physical Properties

Item Physical property value
Average pore size (μm) 25
Porosity (%) 63
C hardness 15
Tensile strength (MPa) 0.4
Tensile elongation (%) 600
Heat resistance (℃) 100
Water absorption speed (sec) <1

*Values are reference values, not standard values.

Roller Standard Size

Outer diameter φ30 ~ 60 mm
Thickness 15 mm以下
Length 1000 mm以下

*For other sizes, please contact us.

Chemical Resistance

Chemical name Concentration(%) Evaluation
Sulfuric acid 50
Hydrochloric acid 36
Nitric acid 60
Acetic acid 30
Phosphoric acid 85
Sodium hydroxide 30
Ammonia 10
Ferric chloride 40
Cupric chloride 10
Sodium hypochlorite 5
Potassium permanganate 5 ×
Hydrogen peroxide 30
Methanol 100
Ethanol 100
Acetone 100
MEK
(methyl aryl ketone)
100 ×
Toluene 100 ×
Ethyl acetate 100 ×
Kerosene 100 ×
Benzene 100 ×
Test conditions: Judgment by soaking for 2 weeks at room temperature (about 20°C)
Judgment Criteria: ○ = Strength retention rate of 80% or more and dimensional change rate of less than 5%
△ = Strength retention rate of 60% or more and dimensional change rate of less than 10%
× = 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.


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