High Resilience Low Pressure Variable Fluorosilicone Rubber

 

High resilience low pressure variable fluorosilicone rubber is referred to as FVMQ. Generally, 0.2% to 0.4% vinyl siloxane copolymerization modification is also introduced into the molecular chain. Colorless transparent high viscosity plastic linear polymer compound, the main chain is composed of silicon and oxygen atoms, the side groups connected to silicon are methyl, vinyl and trifluoropropyl groups, the molecular weight is between 500,000 and 800,000. With various additives, it can be mixed into homogeneous rubber. Under the action of organic peroxide, it can be vulcanized into various elastic rubber products. In addition to the characteristics of general silicone rubber, it also has excellent resistance to fuel oil, hydraulic oil, transformer oil, engine oil, and chemical solvents. It can work for a long time at -60℃～+230℃.

 

 

Aluda high resilience low pressure variable fluorosilicone rubber is a translucent or milky white high resilience fluorosilicone compounded rubber with good physical properties and processing properties, good resilience, low pressure change, fast vulcanization speed and good fluidity, suitable for Used to make seal products.

 

Item/Grade	Test Method	Performance Index
Model		G1030	G1040	G1050	G1060	G1070	G1080
Appearance		Translucent or grayish white, smooth, without impurities
Hardness/shore A	ATSM D2240	30±5	40±5	50±5	60±5	70±5	80±5
Tensile Strength/MPa	ATSM D412	9.5	10.2	10.2	10.2	10.2	8.9
Elongation at break,%	ATSM D412	430	410	355	332	270	205
Tear strength,KN/m	ATSM D624	16	17	17	18	18	17
Compression at set,177℃,22h	ATSM D395	6.0	6.1	6.1	6.3	6.8	6.9
Rebound Resistance,%	ATSM D2632	31	31	44	36	34	32
Heat Resistance Strength,225℃,72h,%	ATSM D573	-17	-17	-17	-17	-17	-17
Heat Resistance Elongation,225℃,72h,%	ATSM D573	-10	-10	-10	- 10	-10	-10
Fuel C Volume Change,23℃,72h,%	ATSM D471	22	20	18	17	17	17
Fuel C Strength Change,23℃,72h,%	ATSM D471	-20	-20	-20	-20	-20	-20
Fuel C Elongation Change,23℃,72h,%	ATSM D471	-20	-20	-20	-20	-20	-20

Note:

1. Vulcanizing agent: DBPH. The dosage is 0.53gDBPH/100g premixed glue.

2. One stage vulcanization: 170℃*10Min. Two stage vulcanization: 200℃*4H.

 

 

1. Mixing: Remix several times on the open mill, add vulcanizing agent, and then adjust back to 0.5mm-1mm thin pass 8-10 times after the material is finished, and then leave the tablet and park it.

2. Vulcanization: After re-milling the fluorosilicone compounded rubber with the vulcanizing agent, it is sliced or cut into the desired shape, and then molded and vulcanized on the molding machine.

 

 

1. Aviation industry: seals and contacts of fuel oil and lubricating oil on aircraft, such as various O-rings, gaskets, sealing rings, sensor materials, diaphragms, wire clamps for fluorosilicon gaskets, and can also be used in aircraft fuel tanks overall seal.

2. Automobile industry: all kinds of vehicle sealing rings, oil seals, diaphragms, conduits, valve linings, etc.

3. Medical and health: used for medical devices and artificial organs, such as medicinal catheters, drainage tubes, artificial valves, etc.

4. Military industry: used in harsh environments requiring low temperature resistance, oil resistance, and acid resistance, such as hydraulic system infusion bellows of military aircraft, doors and windows of special vehicles, back cover sealing strips, and sensing materials for sensors.

5. Petrochemical industry: all kinds of high temperature resistant, low temperature resistant, chemical corrosion resistant pumps, valves, oil tanks and other equipment seals.

 

 

 

Compared with methyl vinyl silicone rubber, high resilience low pressure variable fluorine silicone rubber has excellent oil resistance, solvent resistance and chemical resistance. Compared with fluororubber, oil resistance and solvent resistance are also good. After dipping in the same medium, temperature and time, they all show excellent performance. It can be said that fluorosilicone rubber is the only elastomer that can withstand non-polar media at -60°C to 230°C. The gasoline resistance of fluorosilicone rubber is also relatively good. Even in the gasoline/methanol mixed system, the hardness, tensile strength, and volume changes of the vulcanized rubber are very small. After 600h long-term immersion test, the physical properties change Also very small.

Storage method: store in a dry environment at room temperature, valid for one year.

Packing: Packed in plastic bags, 10 kg per bag, two bags per carton.

Shipping: This product is shipped as a non-hazardous chemical.

 

 

1. This product should be kept neutral and avoid contact with acidic and alkaline substances.

2. This product will flow under its own weight. During transportation and use, pay attention to the packaging to avoid flowing around.

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