Non-Conductive Sealing Elastomer

Sealing elastomer is a polymer material with excellent flexibility, scalability and electrical insulation properties. With small elastic modulus, high elongation, good resistance to air permeability, resistance to various chemical dielectric and electrical insulation properties, sealing elastomer by Nystein is developed for shock absorption, sealing, flexing, abrasion resistance, corrosion resistance, insulation and other needs. Silicone elastomer can be mixed or blended with other materials and made into synthetic elastomer with different performance and costs, resistant to bending and bending deformation. In accordance with different application needs and the environment, Nystein has developed a series of materials for customers to choose. The differences in physical and chemical properties of series of products are demonstrated in temperature resistance, resilience, insulation, oil resistance, pressure resistance, wear resistance and so on. Non-conductive sealing elastomer is usually installed as a filler gasket between the metal and the shell. The main role of elastomer gasket is to make the enclosure, gaskets and cover plate excellently sealed to prevent dust, liquid or gas from penetrating into the product.

Product Description SR300 is a wide operating temperature range non-conductive sealing elastomer developed by Nystein. It can stand low temperature at -70℃ for extended period. with its tensile strength, elongation at break and hardness remaining almost the same as in room temperature.

This military-grade product has been used in a large-scale in defense and industrial products. Nystein often requests a series of reliability testing by third parties to verify its performance. The basic third party tests are:

·Compression Stress Relaxation Test

·Xenon Lamp Illumination Aging Test

·Ozone Aging Test

·High and Low Temperature Aging Test

·Shore Hardness + Compression Set

·Thermal Shock Test

·Tensile Strength + Elongation + Tear Strength Test

·Anti-Fungal (International)

·Anti-Fungal (North America)

·Cold Resistance

·Water Resistance + Flame Retardant Test

·RoHS + Halogen Free

SR200 is a specially developed high resilience elastomer. It is able to restore to status quo even in large deformation, which is the most advanced feature compared with ordinary rubber. High resilience means high deformation capacity and better sealing performance.

Elastomer Material Properties SR200 Series Test Method

Silicone

1.1

55

300

8

High Resilience

650

80

-55~170

SR300_1213x400_P

Non-Conductive Sealing Elastomer Ordering Guide:

Special processing suffix: J: closed-loop without PSA;P: closed-loop with PSA;O: not looped, with PSA, delivery in meters;L: not looped, without PSA, delivery in meters.

Product section part code 1213. As a result of tooling sharing, the part code list can be referred to COE extrusion part code list; same rule is applied to elastomer sheet stock size code.

SR300 is the non-conductive gasket material number

Elastomer Material Properties SR300 Series

Substrate3Density (g/cm )

Compression set (%)

Hardness (Shore A)

Tensile Strength (PSI)

Elongation (%)

Tear Strength (PPI)

Test Method

Temperature Range (℃)

Characteristics

Silicone

1.2

55

300

30

Heat and Cold Resistant

900

60

-70~220

N/A

ASTM D792

ASTM D2240

ASTM D412

ASTM D395-B

ASTM D1329

N/A

ASTM D412

ASTM D624

N/A

ASTM D792

ASTM D2240

ASTM D412

ASTM D395-B

ASTM D1329

N/A

ASTM D412

ASTM D624

Substrate3Density (g/cm)

Compression set (%)

Hardness (Shore A)

Tensile Strength (PSI)

Elongation (%)

Tear Strength (PPI)

Temperature Range (℃)

Characteristics

Non-conductive elastomer strip length: 400mm

SR300 Series:

SR300 Series:

Elastomer - EMI Shielding SolutionsConductive/Non-Conductive

SR280 is a modified EPDM sealing elastomer, and has been greatly improved in anti-

aging performance. As a low-density filling material, SR280 has stable performance and

is for all-weather conditions, resistant to heat, vapor and ozone, with good color stability;

it is able to work under high load at 120℃ high temperature, with instantaneous ambient

temperature of 150 - 200℃. With lack of polarity, low degree of unsaturation, is

resistance to a variety of polar chemicals such as alcohols, acids, alkalis, oxidants,

refrigerants, detergents, animal fat and vegetable oils and ketones.

SR280 Series:

To meet the application needs in different fields, Nystein is able to completely

customize material formulations to satisfy specific requirements in temperature,

flexibility, oil resistance, color and cost. There are a wide range of selection in this

section; designated material number for specific material is indicated as SR1xx.

SR100 Series:

绝缘密封橡胶

SR100 Series

N/A

N/A

N/A

N/A

N/A

Customizable

N/A

N/A

N/A

SR280 Series

EPDM

1.4

70

150

18

Anti-Aging

200

100

N/A

ASTM D792

ASTM D2240

ASTM D412

ASTM D395-B

ASTM D1329

N/A

ASTM D412

ASTM D624

-55-150

Elastomer Material Properties

Substrate3Density (g/cm)

Compression set (%)

Hardness (Shore A)

Tensile Strength (PSI)

Elongation (%)

Tear Strength (PPI)

Temperature Range (℃)

Characteristics

Test Method

N/A

ASTM D792

ASTM D2240

ASTM D412

ASTM D395-B

ASTM D1329

N/A

ASTM D412

ASTM D624

Elastomer Material Properties

Substrate3Density (g/cm)

Compression set (%)

Hardness (Shore A)

Tensile Strength (PSI)

Elongation (%)

Tear Strength (PPI)

Temperature Range (℃)

Characteristics

Test Method

Elastomer - EMI Shielding SolutionsConductive/Non-Conductive