What is the difference between Silicone rubber heat shrinkable sleeve and fluoro rubber heat shrinkable sleeve
The heat-shrinkable tube made of rubber has a rubber heat shrinkable sleeve, an ethylene-propylene rubber heat shrinkable sleeve, and a fluororubber heat shrinkable sleeve. From the appearance, the rubber heat shrinkable tube is not much different from the fluororubber heat shrinkable tube. Its characteristics are soft, high temperature resistant, elastic and so on, so the two can be substitutes for each other. So what is the difference between the rubber heat shrinkable sleeve and the fluororubber heat shrinkable sleeve?
1. Differences in constituent elements:
Silicone Rubber heat shrinkable sleeve is made of rubber and polymer elastomer by radiation modification. It can be used at high temperature for a long time, resistant to acid, solvent and external mechanical damage. It can be used for the protection of cable terminals and separation joints in military vehicles, high-speed rail trains, ship equipment or electrical machinery.
The fluororubber heat shrinkable sleeve is made of fluororubber and polymer elastomer by radiation modification. It can be used at high temperature for a long time, and is resistant to diesel, aviation fuel and high temperature resistant fluid. It can be used for protection of military vehicles, high-speed rail trains, ship equipment or commercial cable terminals, separation joints, etc.
2. Shrinkage ratio difference
The heat shrinkage ratio of the fluororubber is 2:1, and the heat shrinkage ratio of the ruthenium rubber is 1.7:1; that is, the tensile strength of the fluororubber heat shrinkable tube is higher than that of the Silicone rubber heat shrinkable tube.
3. Use temperature difference
Whether it is a rubber heat-shrinkable tube or a fluororubber heat-shrinkable tube, the shrinkage temperature is 90 ° C ~ 170 ° C; but the temperature of the fluoro rubber heat shrinkable tube is resistant to low temperature to -65 ° C, and the Silicone rubber is -55 ° C.
4. Feature difference
The fluororubber heat shrinkable sleeve has better oil and chemical resistance than the bismuth rubber heat shrinkable sleeve.