Properties and Characteristics - 28 materials and 17 different shapes are available.

Properties and Characteristics

Urethane

Material	Features
Ether Polyurethane	Excels in mechanical strength, has low heat resistance and chemical resistance. Superior water resistance compared to Ester Polyurethane. Has high impact resilience.
Ester Polyurethane	Excels in mechanical strength but has low heat resistance and chemical resistance. Has 30〜100% more mechanical strength to Ether Polyurethane. Superior in oil resistance to Ether type. Has low impact resilience.
Item	Unit	Urethane Rubber
Hardness	Shore A	95	90	70	50	30
Specific Gravity	-	1.13	1.13	1.2	1.15	1.2
Tensile Strength	MPa	44.1	44.6	31.3	27.4	18.5
Elongation	％	400	530	650	690	600
Heat Resistance	℃	70	70	70	70	70
Low Temperature Resistance	℃	-40	-20	-20	-20	-20

Material	Features
Super Abrasion Resistant Urethane (Vulkollan®)	Vlukollan® is a super abrasion resistant urethane which is far superior to conventional urethanes in abrasion resistance and load bearing. It is 6 times stronger in abrasion resistance and 1.5 times in mechanical strength compared to the standard urethane.(MISUMI's internal test)
Abrasion-Resistant Urethane	Unique composition results in abrasion resistance that is 2.5 times higher than general urethane at low cost. Product color is dark brown.
Item	Unit	Super Abrasion Resistant Urethane	High Abrasion Resistant Urethane
Hardness	Shore A	92/68	90/70
Specific Gravity	-	1.26	1.13
Tensile Strength	MPa	46.5/60.0	44.6/31.3
Elongation	％	690/650	530/650
Heat Resistance	℃	80（short time120）	70
Low Temperature Resistance	℃	-20	-20
Results of Taber Abrasion Test
	General Urethane	Super Abrasion Resistant Urethane	High Abrasion Resistant Urethane
Abrasion Test (Taber) Abrasion Volume (mm3)	197.3	73.8	33.9

Material	Features
Heat Resistant Urethane	This urethane has greater heat resistance up to 120°C (general urethane withstands up to up to 70°C). Suitable for use in applications where high mechanical strength is required in high-temperature range, such as work receiver for hot air dryer. Product color is brown.
Item	Unit	Heat Resistant Urethane
Hardness	Shore A	1.13
Specific Gravity	-	90
Tensile Strength	MPa	44.6
Elongation	％	530
Heat Resistance	℃	120
Low Temperature Resistance	Shore A	-20

Material	Features
Low Repulsion Urethane	It has the same properties as urethane, and excels in shock absorption. With more resistance to compression than normal urethane, it is hard to deform. Not suitable for the absorption of large impact energy because its tensile strength and elongation is weaker than that of urethane of the same hardness.
Extra Low Hardness Urethane	High physical strength that cannot be obtained from conventional soft materials. It is MISUMI original material that suppresses self-adhesion, which is the problem of soft material. This material is highly resistant to impact and it compresses little.
Item	Unit	Low Repulsion Urethane	Extra Low Hardness Urethane
Hardness	Shore A	70	15
Specific Gravity	-	1.03	1.02
Tensile Strength	MPa	11.8	0.6
Elongation	％	250	445
Heat Resistance	℃	70	80
Low Temperature Resistance	℃	-20	-40

Material	Features
Shock Absorbing Gel	Shock absorbing gel is extremely soft gel with Asker F hardness. Being an urethane-based synthetic rubber, it has high material strength. A major characteristic is the three-dimensional slow recovery - the function to recover after compression slowly and in multiple directions.
Item	Unit	Shock Absorbing Gel
Hardness	Asker F	75
Specific Gravity	-	1
Tensile Strength	MPa	0.81
Elongation	％	885
Heat Resistance	℃	100
Low Temperature Resistance	℃	-10

Rubber

Material	Features
Nitrile Rubber	Inexpensive and excels in abrasion resistance and oil resistance. Being inferior in weather resistance, avoid using it under direct sunlight and near electrical equipments that generate ozone.
Item	Unit	Nitrile Rubber
Hardness	Shore A	70	50
Specific Gravity	-	1.6	1.3
Tensile Strength	MPa	12.7	4.4
Elongation	％	370	400
Heat Resistance	℃	90	99
Temperature of Continuous Use	℃	80	80
Low Temperature Resistance	℃	-10	-10

Material	Features
Chloroprene Rubber	Inexpensive and excels in abrasion resistance and oil resistance. Being inferior in weather resistance, avoid using it under direct sunlight and near electrical equipments that generate ozone.
Non-staining Chloroprene Rubber	General rubbers may contaminate the contact materials with their cross-linker or oil. Non-staining chloroprene rubber is uniquely compounded so that it minimizes such damages.
Item	Unit	Chloroprene Rubber
Hardness	Shore A	65
Specific Gravity	-	1.6
Tensile Strength	MPa	13.3
Elongation	％	460
Heat Resistance	℃	100
Temperature of Continuous Use	℃	80
Low Temperature Resistance	℃	-35

Material	Features
Ethylene Rubber	Excels in weather resistance and alkali・ketone・ozone resistance. Inferior in oil resistance and fire resistance.
Item	Unit	Ethylene Rubber
Hardness	Shore A	65
Specific Gravity	-	1.2
Tensile Strength	MPa	12.8
Elongation	％	490
Heat Resistance	℃	120
Temperature of Continuous Use	℃	80
Low Temperature Resistance	℃	-40

Material	Features
Low Elastic Rubber (Hanenaito®)	It is used as cushioning material for pallet damper, conveyor machine, precision instrument etc, because of its good elongation and shock absorption. Also it is used as vibration absorption materials of various precision instruments because of its excellent vibration absorption.
Item	Unit	Low Elastic Rubber (Hanenaito®)
Hardness	Shore A	57	32
Specific Gravity	-	1.3	1.2
Tensile Strength	MPa	8.3	10.3
Elongation	％	810	840
Heat Resistance	℃	60	60
Temperature of Continuous Use	℃	30	30
Low Temperature Resistance	℃	10	10

Material	Features
Silicon Rubber	Excels in heat, low temperature and weather resistance. Compliant with Food Sanitation Act, Ordinance of the Ministry of Health and Welfare No. 85. Inferior in mechanical strength.
Item	Unit	Silicon Rubber
Hardness	Shore A	70	50
Specific Gravity	-	1.2	1.2
Tensile Strength	MPa	7.4	8.8
Elongation	％	300	330
Heat Resistance	℃	200	200
Temperature of Continuous Use	℃	150	150
Low Temperature Resistance	℃	-70	-70

Material	Features
Fluoro-Rubber	Has excellent chemical resistance and the best heat resistance among rubbers.
Item	Unit	Fluoro-Rubber
Hardness	Shore A	80	60
Specific Gravity	-	1.8	1.9
Tensile Strength	MPa	12.5	10.8
Elongation	％	330	270
Heat Resistance	℃	230	230
Temperature of Continuous Use	℃	210	210
Low Temperature Resistance	℃	-10	-10

Material	Features
Butyl Rubber	Excels in weather, chemical and gas permeability resistance. Suited for inner tube of air tire. Inferior in oil resistance and fire resistance.
Item	Unit	Butyl Rubber
Hardness	Shore A	65
Specific Gravity	-	1.2
Tensile Strength	MPa	12.8
Elongation	％	490
Heat Resistance	℃	120
Temperature of Continuous Use	℃	80
Low Temperature Resistance	℃	-40

Material	Features
Amber Color Rubber	Mainly made of natural rubber. Superior in mechanical strength and excellent in abrasion resistance. It is highly elastic and tensile and fits well with work shapes. Inferior in chemical resistance and weather resistance.
Item	Unit	Amber Color Rubber
Hardness	Shore A	45
Specific Gravity	-	0.9
Tensile Strength	MPa	16.1
Elongation	％	730
Temperature of Continuous Use	℃	70
Low Temperature Resistance	℃	0

Material	Features
TPE (Thermoplastic Elastomer)	Olefinic Type Thermoplastic Elastomer which excels in heat and chemical resistance. Generates low dust and releases less outgas. Recommended for use in clean rooms. Excels in ozone resistance. Low density contributes to weight saving.
Item	Unit	TPE (Thermoplastic Elastomer)
Hardness	Shore A	65
Specific Gravity	-	0.96
Tensile Strength	MPa	8.7
Elongation	％	720
Heat Resistance	℃	80
Low Temperature Resistance	℃	-10

Material	Features
Viscoelastic Elastomer	Olefinic Type Thermoplastic Elastomer which excels in heat and chemical resistance. Generates low dust and releases less outgas. Recommended for use in clean rooms. Excels in ozone resistance. Low density contributes to weight saving.
Item	Unit	Viscoelastic Elastomer
Hardness	Asker F	65
Specific Gravity	-	0.9
Tensile Strength	MPa	0.17
Elongation	％	＞2000
Heat Resistance	℃	70
Low Temperature Resistance	℃	-10

Sponge

Characteristics of Sponges

Item	Unit	Polyurethane Sponge	Chloroprene Rubbers Sponge	EPDM Sponge	NBR Sponge	Silicon Rubber Sponge			Fluoro Rubber Sponge
						Hs35	Hs22	Hs15
Apparent Density	g/c㎥	0.022	0.18	0.13	0.21	0.35〜0.37	0.35〜0.37	0.3	0.45
Air Bubble	ー	Continuous Air Bubble	Independent Air Bubble	Independent Air Bubble	Independent Air Bubble	Independent Air Bubble			Independent Air Bubble
Tensile Strength	MPa ｛kgf/cm²｝	≧0.076 ｛≧0.77｝	0.9 ｛9｝	0.5 ｛5｝	0.8 ｛8｝	1.6〜1.8 ｛16〜18｝	0.7 ｛7｝	1 ｛10｝	2.7 ｛27｝
Elongation	% ｛kgf/cm²｝	≧120	170	200	200	200〜250		250	280
25% Compression Load	MPa ｛kgf/cm²｝	ー	5.3×10-2 ｛0.54｝	3.1×10-2 ｛0.32｝	6.5×10-2 ｛0.66｝	-（※1）		8	-（※1）
Temperature of Continuous Use※2	℃	-10〜70	-35〜130	-40〜130	-40〜140	-70〜200			-40〜230
Abrasion Resistance		Excellent	Good	Good	Excellent	Acceptable			Excellent
Anti-Aging		Good	Excellent	Excellent	Good	Excellent			Excellent
Water Resistance		Acceptable	Good	Good	Good	Good			Excellent
Chemical Resistance	Oil (Gasoline)	Good	Good	Not Acceptable	Excellent	Acceptable			Excellent
	Acid	Not Acceptable-Acceptable	Good	Not Acceptable-Acceptable	Acceptable-Good	Acceptable-Good			Excellent
	Alkali	Not Acceptable	Excellent	Good	Good	Excellent			Acceptable-Good
	Organic Solvent	Not Acceptable	Not Acceptable-Acceptable	Not Acceptable	Not Acceptable-Acceptable	Not Acceptable			Not Acceptable-Good

For Adhesive Type, the adhesion strength decreases under high temperature (at approx. 80℃ or more).
*1 Compression Set (40% compression) (100°C/24h) 71%
*2 The temperature of continuous use is the temperature where long-term use does not cause a sharp decline in quality.

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