company tower banner
Wacker Chemie AG Company Logo

POWERSIL® 740 Light Gray A/B

1 of 35 products in this brand
POWERSIL® 740 Light Gray A/B is a paste-like, two-component compound with short curing times. When cured, it forms vulcanizates that exhibit remarkable properties such as high tracking and erosion resistance. The material also demonstrates good mechanical properties, including high tear strength, and exhibits excellent dielectric behavior.

Processing Methods: Injection Molding

End Uses: Cable Accessories, Cables, Insulators, Wires

Features: Easier Processing, Electrically Insulating, Excellent Dielectric Properties, Excellent Hydrophobic Properties, Fast Curing, Good Erosion Resistance, Good Mechanical Properties, Good Tear Strength, Good Weather Stability, High Elongation, Outdoor Durability, Tracking Resistant, UV Resistant

Tear Strength: 35.0 - 35.0 kN/m

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Technologies

Features & Benefits

Specific Features

Resistant to tracking and erosion

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Applications
  • Cable accessories
  • Insulators
  • Outdoor and indoor use
Application Details
  • The A and B components are delivered ready-to-use in 20 l and 200 l drums. They can be pumped by means of standard metering equipment from these drums and mixing in a static mixer straight into the heated mold. The mixing ratio is 1 : 1.
  • At room temperature, mixtures of A and B components have a pot life of at least three days.

Properties

Color
Physical Form
Catalyst Properties
ValueUnitsTest Method / Conditions
Dynamic Viscosity (Shear rate 10 s⁻¹)425000mPa·sDIN EN ISO 3219
Kick-Off Temperature (A+B)116°C
Pot Life (A+B, at 23°C)3days
Cured Properties
ValueUnitsTest Method / Conditions
Arc Resistance300secondsIEC 61621
Density1.14g/cm³DIN EN ISO 1183-1 A
Dielectric Strength (1mm sheet)23kV/mmIEC 60243-1
Dissipation Factor (tan δ, at 50Hz)4 x 10⁻³IEC 62631-2-1
Elongation (at break)650%ISO 37 Type 1
FlammabilityFV-0IEC 60695-11-10
Limiting Oxygen Index (LOI)31%ASTM D 2863
Permittivity (at 50Hz)2.9IEC 62631-2-1
Shore Hardness A40DIN ISO 48-4
Tear Strength35N/mmASTM D 624 B
Tensile Strength9.8N/mm²ISO 37 Type 1
Tracking Resistance1A 4.5IEC 60587
Volume Resistivity10¹⁶ Ohm-cmIEC 62631-3-1
Uncured Properties
ValueUnitsTest Method / Conditions
Dynamic Viscosity (Component A, Shear rate 10 s⁻¹)500000mPa·sDIN EN ISO 3219
Dynamic Viscosity (Component B, Shear rate 10 s⁻¹)430000mPa·sDIN EN ISO 3219
Mix Ratio (A:B)1:1parts by weight
Properties
  • Very easy to process
  • Excellent dielectric properties
  • High tear strength and high elongation
  • Best suitable for outdoor applications (uv & weathering resistance, excellent hydrophobic properties)
Note

Cure conditions: 5 min / 165 °c and post-cured for 4 h at 200 °C.

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • Middle East
  • North America
  • Oceania