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Standard Fumed Silicone Rubber For Extrusion

This series of Methyl Vinyl Silicone Rubber Compound is standard silicone rubber(fumed silica) has excellent properties:

- Conform to FDA and LFGB;

- Excellent yellowing resistance and stable processability;

- Excellent transparency and mechanical characteristics;


Applications:

Transparent silicone tubes & E-tubes and wire rods with smooth surface



Typical Technical Properties:


Item

LR-6240

LR-6250

LR-6260

LR-6270

LR-6290

Appearance

Transparent, no mechanical impurities

Density, g/cm3

1.09-1.15

1.12-1.18

1.14-1.20

1.17-1.23

1.18-1.25

Curing

Hardness,

Shore A

40±3

50±3

60±3

70±3

80±3

Tensile Strength,

MPa ≥

8.5

9.0

9.0

9.0

8.5

Elongation at Break,% ≥

600

500

400

300

200

Tensile Set, % ≤

8

Tear Strength, kN/m ≥

20

25

25

25

20

Post-Curing

Hardness, Shore A

45±3

57±3

68±3

76±3

85±3

Tensile Strength, MPa ≥

7.5

8.5

8.5

8.0

8.0

Elongation at Break,% ≥

520

450

340

260

200

Tear Strength, kN/m ≥

18

20

20

20

18

Compression Set, 180*22h≤

45

35

35

35

25

Rebound Resilience, % ≥

50

50

50

45

40

Volume Resistivity, Ωcm≥

1*1015

Dielectric Strength, kV/mm≥

20


●The physical property data listed in the above table are for reference only.

●Curing conditions: 175*5min; Post-curing condition: 200*4h;

●Ratio of curing agent: 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane: 0.65%.



Instructions for industrial use:

◆The user is obliged to understand the scope of application and purpose of the product used;

◆Please do not use the above products for transplantation or injection into the human body;

◆The test report accompanying the goods is only the test result of the quality inspection department based on the company's vulcanization conditions and test methods;

◆Due to the difference in vulcanization conditions and test methods, we cannot guarantee that both parties can obtain the same test results. It is recommended that users use the test data obtained under their own test conditions as a reference for performance;

◆Any of the above performance data and applicable suggestions are only a reference for the performance of the company's products, and are not a guarantee of the effectiveness or versatility of the company's products in specific applications.



Package &Storage:

In 20kg carton packing with two layers, the inner packaging is a polyethylene plastic bag, and the outer packaging is a carton.

Keep in cool, dry and ventilated place. When transporting the product, it should be protected from rain, moisture, sun, acid, alkali and other impurities, and away from fire and heat sources. Keep in unopened containers, shelf life is 12 months from the date of production. It is shipped as non-hazardous substance.

Storage beyond the shelf life does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.


Silicone Rubber
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Your Professional Silanes & Silicones Supplier
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