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Description
PMQ, PVMQ, VMQ or SILICONE RUBBER.
Properties
• Excellent resistance to heat (dry air), at +200º C continuous and +220º C intermittent.
• Remains flexible at low temperatures of -70ºC.
• Resistant to ultra-violet light, ozone and weathering.
• Exhibits low flammability and low smoke toxicity.
• Good electrical insulation properties.
• Silicone rubber is physiologically inert, thus making it the preferred choice of the medical, pharmaceutical and food processing industries.
• Silicones have comparatively low mechanical properties, tensile strength, elongation and tear strength, however they keep constant even at high temperatures but should not be used with high pressure
steam.
• Resistance to chemicals; its resistance to oils and hydrocarbon products is fairly limited and similar to that of Chloroprene rubbers. Reasonable resistance to a whole range of general chemical products,
but acids, alkalis, esters and ketone should be avoided.
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| Ref. |
Specific Gravity |
Hardness |
Tens. Stren. |
Elong. |
Tear. Stren |
Compres. Set |
Working
Temp. |
| |
g/cm3 |
Shore A |
M Pa |
% |
N/mm |
C |
h |
% |
º C |
| S550 Semitrans. |
1,12 |
50 |
7 |
350 |
17 |
70 |
22 |
40 |
-70/200 |
| S650 Semitrans. |
1,16 |
60 |
8 |
350 |
20 |
70 |
22 |
40 |
-70/200 |
| S750 Semitrans. |
1,19 |
70 |
8 |
300 |
20 |
70 |
22 |
40 |
-70/200 |
| S850 Semitrasn. |
1,40 |
80 |
8 |
250 |
20 |
70 |
22 |
40 |
-70/200 |
| S561 White |
1,15 |
50 |
6,5 |
300 |
17 |
70 |
22 |
45 |
-70/200 |
| S661 White |
1,30 |
60 |
7,5 |
300 |
17 |
70 |
22 |
45 |
-70/200 |
| S761 White |
1,33 |
70 |
7,5 |
300 |
20 |
70 |
22 |
45 |
-70/200 |
| S861 White |
1,48 |
80 |
7,5 |
250 |
20 |
70 |
22 |
45 |
-70/200 |
| S562 Red |
1,15 |
50 |
6,5 |
300 |
17 |
70 |
22 |
45 |
-70/200 |
| S662 Red |
1,30 |
60 |
7,5 |
300 |
17 |
70 |
22 |
45 |
-70/200 |
| S762 Red |
1,33 |
70 |
7,5 |
300 |
20 |
70 |
22 |
45 |
-70/200 |
| S862 Red |
1,49 |
80 |
7,5 |
250 |
20 |
70 |
22 |
45 |
-70/200 |
| S764 Grey |
1,33 |
70 |
7,5 |
300 |
20 |
70 |
22 |
45 |
-70/200 |
| S864 Grey |
1,48 |
80 |
7,5 |
250 |
20 |
70 |
22 |
45 |
-70/200 |
| S763 Blue |
1,32 |
70 |
7,5 |
300 |
20 |
70 |
22 |
45 |
-70/200 |
| S863 Blue |
1,47 |
80 |
7,5 |
250 |
20 |
70 |
22 |
45 |
-70/200 |
| S565 Black |
1,12 |
50 |
6,5 |
300 |
17 |
70 |
22 |
45 |
-70/200 |
| S665 Black |
1,28 |
60 |
7,5 |
300 |
17 |
70 |
22 |
45 |
-70/200 |
| S765 Black |
1,31 |
70 |
7,5 |
300 |
20 |
70 |
22 |
45 |
-70/200 |
| S865 Black |
1,47 |
80 |
7,5 |
250 |
20 |
70 |
22 |
45 |
-70/200 |
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