This product has good physical and mechanical properties and processability. This product can be divided into two sub-categories: rubber for molding and rubber for extrusion. The rubber for molding is vulcanized with 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane as vulcanizator, applicable to manufacturing of industrial miscellaneous parts such as keypads, sealing rings and sealing gaskets; and the rubber for extrusion is vulcanized with vulcanizator DCBP (Di-(2,4-dichlorobenzoyl) Peroxide), applicable to manufacturing of various electric wires, cables, hoses and tapes.
Typical Properties:
Category |
Item |
Appearance |
Hardness Shore A |
Tensile strength MPa≥ |
Elongation at break %≥ |
Breaking set %≤ |
Tear strength B KN/m≥ |
Specific density 25°C g/cm³ |
Compression set 180*22h %≤ |
Resilience %≥ |
For molding |
MY D7125 |
Ivory light yellow |
25±3 |
3.5 |
700 |
8 |
10 |
1.05±0.05 |
- |
- |
MY D7130 |
30±3 |
5.0 |
450 |
7 |
15 |
1.08±0.05 |
35 |
65 |
||
MY D7140 |
40±3 |
6.5 |
400 |
7 |
16 |
1.13±0.05 |
30 |
60 |
||
MY D7150 |
50±3 |
7.5 |
320 |
8 |
18 |
1.15±0.05 |
30 |
60 |
||
MY D7160 |
60±3 |
7.5 |
280 |
8 |
18 |
1.19±0.05 |
30 |
50 |
||
MY D7170 |
70±3 |
7.0 |
200 |
7 |
17 |
1.22±0.05 |
30 |
45 |
||
MY D7180 |
80±3 |
7.0 |
150 |
6 |
16 |
1.25±0.05 |
25 |
45 |
||
MY D7190 |
86±2 |
4.0 |
80 |
6 |
10 |
1.26±0.05 |
25 |
40 |
Physical data in the above table is for reference only.
Vulcanization condition: 175℃× 5Min.
Ratio of curing agent 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane:0.65%.
Advantage:
- Good processability
- Stable comprehensive physical properties
Applications:
- General industrial and civil silicone rubber products
Category |
Item |
Appearance |
Hardness Shore A |
Tensile strength MPa≥ |
Elongation at break %≥ |
Breaking set %≤ |
Tear strength B KN/m≥ |
Specific density 25°C g/cm³ |
Dielectric strength kV/mm ≥ |
Volume resistivity Ω.cm≥ |
For extrusion |
MY D7240 |
Ivory light yellow light gray |
40±2 |
6.5 |
450 |
14 |
16 |
1.13±0.05 |
18 |
1.0 x 10¹⁴ |
MY D7250 |
50±3 |
7.5 |
450 |
14 |
18 |
1.18±0.05 |
18 |
1.0 x 10¹⁴ |
||
MY D7260 |
60±3 |
7.5 |
360 |
14 |
20 |
1.20±0.05 |
18 |
1.0 x 10¹⁴ |
||
MY D7270 |
70±3 |
7.0 |
250 |
14 |
20 |
1.22±0.05 |
18 |
1.0 x 10¹⁴ |
||
MY D7280 |
80±3 |
6.5 |
150 |
10 |
18 |
1.25±0.05 |
18 |
1.0 x 10¹⁴ |
Physical data in the above table is for reference only.
Vulcanization condition: 175℃× 5Min.
Ratio of curing agent:DCBP (Di-(2,4-dichlorobenzoyl) Peroxide) 0.65%.
Advantage:
- Common grade for extrusion
- Flexible processability
- Flexible comprehensive physical properties
Applications:
- General industrial pigmented wires and cables
Packing & Storage:
- 20kg/ carton lined with plastic bags or sheets.
- The products have a shelf life of 9 months from date of manufacture depending on the shore hardness if stored at room temperature in the originally sealed container.