Low volatile silicone rubber

1. The basic models: LIM39XXAD/BD

2. The product description

This series product is a two-component liquid silicon rubber, platinum catalyst using mixed proportion

Is 1:1, has the characteristics of low volatility.

3. The main features

Low volatile

Excellent transparency

Excellent tensile strength and tear strength (35 n/mm) or

Excellent resilience

Excellent thermal stability and weather resistance (temperature 60 ℃ ~ 250 ℃)

Resistance to yellowing

Heat aging

Comply with the USA FDA CFR 21. Part. 177.2600 and European EN14350-2

4. The main application

Mainly for the production of silicone rubber products in contact with the food

5. Storage: according to the original factory packaging, storage in the highest do not exceed 27 ℃ in a cool, dark places, this series of products storage valid for not less than 360 days (to date), the product after use, if not finished, please seal immediately, otherwise affect the storage period of validity

6. Method of use: A component and B components through the metering and mixing equipment in accordance with the proportion of 1:1 into the injection machine screw cavity, and then directly by screw injection into the preheat to 160 ℃ to 200 ℃ within the mold, after A few seconds, get the elastomer cured.

7. Packing

20 kg/barrel or 200 kg/barrel

8. Typical physical properties table

The test conditions

Physical properties

Numerical (LIM3956AD/BD)

Numerical (LIM3960AD/BD)

Numerical (LIM3946AD/BD)

appearance

Transparency in the preferences

Transparent without impurities

Transparent without impurities

For the first time vulcanization is 140 ℃ for 10 minutes

Hardness (° A)

49.0

60.0

60.0

Tensile strength (Mpa)

8.0

7.0

7.50

Elongation (﹪)

500 ﹪

400 ﹪

450 ﹪

Tear strength (KN/m)

35.0

35.0

27.0

Deformation rate (﹪)

Acuities were 5.0 ﹪

Acuities were 5.0 ﹪

Acuities were 8.0 ﹪

Line shrinkage (﹪)

1.60 ~ 2.50 ﹪

1.60 ~ 2.50 ﹪

1.60 ~ 2.50 ﹪

160 ℃ by two minutes

The second vulcanization

Tc90 (s)

29 s

28 s

28 s

Inflection point (S)

26 ~ 30 s

26 ~ 30 s

25 to 30 s

Weightlessness rate (﹪)

1.3 ﹪

1.3 ﹪

1.3 ﹪