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Wynca XHG-6221

Wynca XHG-6221 is a two-component liquid silicone rubber for coating processes. The finished coating is smooth and low tack with high physical properties, good aging property, good dielectric property and good flame retardancy.

Polymer Name: Liquid Silicone Rubber (LSR)

End Uses: Cables, Wires

Features: Flame Resistant, Good Aging Behavior, Good Smoothness, High Dielectric Strength, Long Seal Life, Low Tack

Technical Data Sheet

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Identification & Functionality

Chemical Family
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Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses
Typical Applications
  • Wire and cable sleeve coating
  • Fabric coating
  • Low hardness rubber articles
How to Use

A static metering and mixing unit is recommended to feed the mixture of part A and part B in the ratio 1:1. If air bubbles are entrapped during mixing, the mixture must be thoroughly degassed under vacuum. The product can be used with coating machine or diluted to meet processing need. The standard curing temperature is 120-150℃ and the curing time also depends on the thickness of rubber products.

Processing
  • Please exactly control the mixing ratio of part A and part B, otherwise curing process and product properties may be affected.
  • The curing time, which depends on curing temperature and the thickness of rubber products, should be adjusted to meet the production needs.
  • Please strictly avoid the contact with certain materials such as amines, sulfur, phosphor and tin, which will adversely affect the curing process or even result in no curing.

Properties

Appearance
Translucent
Typical Properties
ValueUnitsTest Method / Conditions
Solids Content100%
Viscosity300Pa.s
Hardness (2mm thickness slabs molded 8 minutes at 150°C)25shore A
Tensile Strength (2mm thickness slabs molded 8 minutes at 150°C)6mPa
Tear Strength (2mm thickness slabs molded 8 minutes at 150°C)14kN/m
Elongation (2mm thickness slabs molded 8 minutes at 150°C)800%
Electrical Properties
ValueUnitsTest Method / Conditions
Dielectric Strength (1mm thickness slabs molded 8 minutes at 150°C)24kV/mm
Volume Resistivity (1mm thickness slabs molded 8 minutes at 150°C)10^16Ohm.cm
Dissipation Factor (1mm thickness slabs molded 8 minutes at 150°C)0.01
Tracking Resistance (1mm thickness slabs molded 8 minutes at 150°C)3.5
Cured Properties
ValueUnitsTest Method / Conditions
T10 5 minutes at 150°C10s
T90 5 minutes at 150°C30s

Packaging & Availability

Packaging Type
Packaging

20kg PE lined plastic pails or 200kg PE lined metal drums.

Packaging
  • Keep in cool and well ventilated place from rain, moisture and sunlight. When stored in the original unopened containers, this product has a shelf life of 6 months from the date of manufacture. The containers should be sealed tightly after use.
  • This product can be shipped as non-hazardous goods. Avoid fall, upside down and collision with hard objects during transportation.