SILIKON Base rubber mixes

SILIKON base mixes are based on high molecular weight SKTV and SKTV-1 siloxane rubber. SILIKON base rubber mixes grades 100/30, 100/40, 100/50, 100/60, 100/70, 200/50, 200/60, 200/70, 300/30, 300/40, 300/50, 300/60, 300/70 are designed for production of electrical insulating tubes, heat and frost-resistant insulation and sheaths of wires, cables, as well as sealing gasket materials, profiles and various rubber products, and sealing parts. Working temperature of products is from -50 °C to +200 °C. Color can be according to customer’s request. SILIKON mixes can be used both independently and with the addition of various fillers. SILIKON mixes are produced both with and without a curing agent in the form of up to 10 kg pieces

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Application Characteristics

Application

SILIKON base rubber mixes grades 100/30, 100/40, 100/50, 100/60, 100/70, 200/50, 200/60, 200/70, 300/30, 300/40, 300/50, 300/60, 300/70 are designed for manufacture of electrical insulating tubes, heat and frost-resistant insulation and sheaths of wires, cables, as well as sealing gasket materials, profiles and various rubber products, and sealing parts.

Working temperature range of products is from -50 °C to +200 °C.

Characteristics

Specification 2512-046-05766764-2005

Technical characteristics

Parameters	200/50	200/60	200/70	100/30	100/40	100/50	100/60	100/70	300/30	300/40	300/50	300/60	300/70
				After the second stage of curing
Density, g/cm³	1.1± 0.05	1.19± 0.05	1.2± 0.05	1.1± 0.05	1.12± 0.05	1.15± 0.05	1.19± 0.05	1.2± 0.05	1.1± 0.05	1.12± 0.05	1.15± 0.05	1.19± 0.05	1.2± 0.05
Working temperature range, °C	– 50 to +200
Nominal tensile strength, MPa, minimum	3.5	5.0		6.0		7.0			4.5		5.5	7.5	7,0
Elongation at break, %, minimum	250	200	150	450				350	450		350		300
Shore A hardness, units	50±5	60±5	70±5	30±5	40±5	50±5	60±5	70±5	30±5	40±5	50±5	60±5	70±5
Tear strength, kN/m, minimum	8.0			10.0	11.0	15.0		12.0	10.0		12.0
Relative residual deformation at 25% compression in air environment for 22 hours and at (177±5) °C, maximum	40	50	50	—
Electrical performance after soaking in water at +20°C for 24 hours
Volume resistivity, Ohm·cm·10¹⁴, minimum	—	—	—	5
Tan δ, maximum				0.03
Dielectric strength at 50 Hz, kV/mm, minimum				22
Permittivity, maximum				3.5				4.0	3.5				4.0

Packing:

In the form of up to 10 kg pieces. The pieces are wrapped in polyethylene film and placed in a polyethylene bag. Then polyethylene bag with rubber mix is packed in synthetic fabric bags. Net weight of one bag is not more than 30 kg.

Guaranteed shelf life:

Rubber mix with added curing agent – 3 months,

Rubber mix without added curing agent— 6 months.

Guarantee:

The product is manufactured according to the Specification. The product meets the stated information within the shelf life and subject to storage conditions.