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Address: Room 1920 Building 4, Jianfa Fortune Plaza, 191 Tongyi St., Qingyang District, Chengdu, China
Contact name:Chen
Chenguang Fluoro & Silicone Polymer Co.,Ltd |
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Vacuum Interrupter Potting Silicone Rubber
R626 5Mpa Thermally Curable Vacuum Interrupter Potting Silicone
Rubber for Insulation Coating
DESCRIPTION
Characteristics:
Typical Properties
| Properties | Test Method | Unit | R-626 | ||
| Uncured | Appearance | Visual | A | Translucent | |
| B | Transparent | ||||
| Viscosity, after stirred at 23°C | GB/T 2794-1995 | Pa.s | 40 | ||
| Mixing ratio | A:B | 10:1 | |||
| Pot life, 25°C | h | 6 | |||
| Cured | Tensile strength | GB/T 528-2009 | MPa | 5.0 | |
| Elongation at break | GB/T 528-2009 | % | 350 | ||
| Tear strength | GB/T 529-2008 | kN/m | 15 | ||
| Hardness, Shore A | GB/T 531-1999 | 30±5 | |||
| Dielectric strength | GB/T 1408.1-2006 | MV/m | 20 | ||
| Volume resistivity | GB/T 1410-2006 | Ω.cm | 1.0×1013 | ||
These figures are only intended as a guide and should not be used
in preparing specifications.
How to use
If the injection molding equipment will have a long time to leave
unused, please clean remained rubber timely, or keep them in sealed
packing under low temperature (-10℃ at least).
Curing Conditions
The vulcanization can be heat accelerated.
The curing time depends on mold size.
The necessary time of thermal conduction should be fully counted in
case of the mold size is big enough. The cooling and demold time
also depend on the article size and the curing temperature.
Packing, Storage & Shipping
Compatibility
Certain materials, chemicals, curing agents and plasticizers can
inhibit the cure of product. Most notable of these include:
If a substrate or material is questionable with respect to potentially causing inhibition of cure, it is recommended that a small scale compatibility test be run to ascertain suitability in a given application. The presence of liquid or uncured product at the interface between the questionable substrate and the cured gel indicates incompatibility and inhibition of cure.
As components of group A and group B have been confirmed without
toxic and aggressive substances over past years, no need special
preventive measure, only requests to use the general industrial
health standard.
It should avoid contacting with nitrogen, phosphorus, sulfur
compound and organic tin or other heavy metal compound because of
being easy to be inactivated. The containers should be keeping
clean.
Temperature will impact pot life of mixed rubber, the higher
temperature, the shorter pot life.
The data presented in this leaflet are in accordance with the
present state of our knowledge, but do not absolve the user from
carefully checking all supplies immediately on receipt. We reserve
the right to alter product constants within the scope of technical
progress or new developments. The recommendations made in this
leaflet should be checked by preliminary trials because of
conditions during processing over which we have no control,
especially where other companies’ raw materials are also being
used. The recommendations do not absolve the user from the
obligation of investigating the possibility of infringement of
third parties’ right and, if necessary, clarifying the position,
recommendations for use do not constitute a warranty, either
express or implied, of the fitness or suitability of the products
for a particular purpose.
