Urethane Rubber Sponge
View the MISUMI urethane, rubber, and sponge material properties.
Urethane, Rubber, and Sponge Properties
The values shown are representative values, not guaranteed values.
Urethane Properties
| item | unit | Urethane | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| standard | Brucolan® | Abrasion resistance | Antistatic urethane | Heat resistant | Memory foam | Ultra low hardness | Ceramic urethane | ||||||||||||||
| hardness | Shore A | 95 | 90 | 70 | 50 | 30 | 92 | 68 | 90 | 70 | 90 | 70 | 50 | 90 | 70 | 15 | 95 | 90 | 70 | 50 | |
| specific gravity | - | 1.13 | 1.13 | 1.2 | 1.2 | 1.2 | 1.26 | 1.2 | 1.13 | 1.2 | 1.2 | 1.13 | 1.03 | 1.02 | 1.13 | 1.13 | 1.2 | 1.2 | |||
| Tensile strength | MPa | 44 | 27 | 56 | 47 | 27 | 46.5 | 60 | 44.6 | 31.3 | 26 | 53 | 45 | 44.6 | 11.8 | 0.6 | 42 | 26 | 53 | 45 | |
| Growth | % | 380 | 470 | 720 | 520 | 600 | 690 | 650 | 530 | 650 | 440 | 680 | 490 | 530 | 250 | 445 | 360 | 440 | 680 | 490 | |
| Volume specific resistivity | (Ω ・ cm) | 10 9-12 | - | - | 2.1 × 10 8 | - | - | - | - | - | |||||||||||
| Heat-resistant | ℃ | 70 | 80 (120 degrees for a short time) | 70 | 70 | 120 | 70 | 80 | 70 | 70 | |||||||||||
| Cold resistance | ℃ | -40 | -20 | -20 | -20 | -20 | -20 | -20 | -40 | -40 | -20 | ||||||||||
Each characteristic value of tensile strength and elongation is tested based on JIS standard K6251.
Rubber Properties
| item | unit | Nitrile rubber | Chloroprene rubber | Ethylene rubber | Butyl rubber | Fluorine rubber | Silicon rubber (SI) | Low elasticity rubber | Natural rubber | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (NBR) | (CR) | (EPDM) | (IIR) | (FPM) | standard | High strength | (Hane Night ®) | (NR) | ||||||
| hardness | Shore A | 70 | 50 | 65 | 65 | 65 | 80 | 60 | 70 | 50 | 50 | 57 57 | 32 | 45 |
| specific gravity | - | 1.6 | 1.3 1.3 | 1.6 | 1.2 | 1.5 | 1.8 1.8 | 1.9 | 1.2 | 1.2 | 1.3 1.3 | 1.2 | 0.9 | |
| Tensile strength | MPa | 12.7 | 4.4 | 13.3 | 12.8 | 7.5 7.5 | 12.5 | 10.8 | 7.4. | 8.8 | 7.8 | 8.3 | 10.3 | 16.1 |
| Growth | % | 370 | 400 | 460 | 490 | 380 | 330 | 270 | 300 | 330 | 400 | 810 | 840 | 730 |
| Volume resistivity | (Ω ・ cm) | 10 10 | 10 9 | 10 8 | 10 8 | 10 6 | 10 6 | 10 11 | 10 13 | 10 14 | - | - | - | |
| Maximum operating temperature | ℃ | 90 | 90 | 100 | 120 | 120 | 230 | 230 | 200 | 200 | 60 | 60 | 70 | |
| Continuous operating temperature | ℃ | 80 | 80 | 80 | 80 | 80 | 210 | 210 | 150 | 150 | 30 | 30 | 70 | |
| Cold resistance | ℃ | -Ten | -Ten | -35 | -40 | -30 | -Ten | -Ten | -70 | -50 | Ten | Ten | 0 | |
Each characteristic value of tensile strength and elongation is tested based on JIS standard K6251.
The characteristic value of volume resistivity is tested based on JIS-K6271-1.
Sponge Properties
| item | unit | Polyurethane sponge |
Chloroprene rubber sponge |
EPDM sponge |
NBR sponge |
Silicone rubber sponge | Fluorine rubber sponge |
|
|---|---|---|---|---|---|---|---|---|
| HS35 | HS15 | |||||||
| Apparent density | g / cm 3 | 0.022 | 0.18 | 0.09 to 0.15 | 0.21 | 0.35 ~ 0.37 | 0.3 | 0.45 |
| Bubbles | - | Open cell | Closed cell | Closed cell | Closed cell | Closed cell | Closed cell | Closed cell |
| Tensile strength | MPa {kgf / cm 2 } |
≧ 0.076 {≧ 0.77} |
0.9 {9} |
0.4 {4} |
0.8 {8} |
1.6-1.8 {16-18} |
1 {10} |
2.7 {27} |
| Growth | % | ≧ 120 | 170 | Over 180 | 200 | 200-250 | 250 | 280 |
| 25% compressive load | MPa {kgf / cm 2 } |
- | 5.3 × 10 -2 {0.54} |
3.1 × 10 -2 {0.32} |
6.5 × 10 -2 {0.66} |
-(* 1) | -(* 3) | -(* 1) |
| Continuous use temperature * 2 | ℃ | -10-70 | -35-130 | -40-130 | -10 to 140 | -70-200 | -20-230 | |
| Abrasion resistance | ◎ | ○ | ○ | ◎ | △ | ◎ | ||
| Aging resistance | ○ | ◎ | ◎ | ○ | ◎ | ◎ | ||
| water resistant | △ | ○ | ○ | ○ | ○ | ◎ | ||
| chemical resistance | Oil (gasoline) | ○ | ○ | × | ◎ | △ | ◎ | |
| acid | × ～ △ | ○ | × ～ ○ | △ ～ ○ | △ ～ ○ | ◎ | ||
| alkali | × | ◎ | ○ | ○ | ◎ | △ ～ ○ | ||
| Organic solvent | × | × ～ △ | × | × ～ △ | × | × ～ ○ | ||
In the case of the type with a seal, the adhesiveness of the seal decreases at high temperatures (about 80 ° C or higher)
- *1 Compressed permanent strain <40% compression> (100 ° C / 24h) 29%
- *2 The continuous use temperature is a temperature at which there is no sudden deterioration in quality even after long-term use.
- *3 Compressed permanent strain <40% compressed> (150 ° C / 24h) 8% (based on JIS K 6250)
| item | unit | Low elasticity rubber sponge | Memory foam sponge | Low strain sponge |
|---|---|---|---|---|
| Apparent density | g / cm 3 | 0.3 | 0.097 | 0.26 |
| Bubbles | - | Closed cell | Closed cell | Closed cell |
| Tensile strength | MPa {kgf / cm 2 } |
0.9 {9} |
0.9 {9} |
0.32 {3.2} |
| Growth | % | 480 | 210 | 73 |
| 25% compression permanent strain * 1 | % | 62 | 5.1 | 0.2 |
| Continuous use temperature * 2 | ℃ | 20-60 | 10-50 | -40-150 |
| Abrasion resistance | ○ | ○ | △ | |
| Aging resistance | △ | △ | ◎ | |
| water resistant | △ | ◎ | ◎ | |
| chemical resistance | Oil (gasoline) | × | × | × |
| acid | × | ○ | ◎ | |
| alkali | × | ○ | ◎ | |
| Organic solvent | × | × | × | |
- *1 Compressed permanent strain JIS K6262
- 2 The continuous use temperature is a temperature at which there is no sudden deterioration in quality even after long-term use.
