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ELASTOSIL® LR 6240 A/B

Chemical Family
Silicones

ELASTOSIL® LR 6240 A/B is a solvent-free, free-flowing, addition-curing two-component silicone rubber for textile coatings (e.g. electrical sleevings). This low-viscosity compound is used to produce flexible textile coatings. It is especially suitable for the manufacture of conveyor belts and electrical insulation tubing.

Properties

Physical Form
Liquid

Product families

Applications

Industrial — Leather & Textiles
  • Textile Manufacturing

Product Families

CASE Ingredients — Resins & Binders
  • Other Resins & Binders

Other characteristics

Brand
ELASTOSIL® LR
End Uses
2K (2 component) Coating
Features

Excellent Flow, High Modulus, Improved Flexibility, Low Viscosity

Compatible Substrates & Surfaces
Textiles
Note

Cure conditions: mixture of LR 6240 A/B in ratio 1 : 1, 5 min / 165°C for cured properties.

Markets
Industrial
Properties
  • High flexibility and resilience
  • High modulus
Coating Type
2K (2 component) Coating
Technology
CASE Ingredients
Packaging Type
  • Drums
  • Pails
Labeling Claims
Solvent-free
Storage Information

Once opened, containers should always be resealed after use to prevent the platinum catalyst from being poisoned by amines, sulfur or phosphorus compounds.

Technical data

Table 1 of 3

1 row
CharacteristicValueUnit
Pot Life (at 23°C)3Days

Table 2 of 3

10 rows
CharacteristicValueUnitMethod
Density1.07g/cm³DIN EN ISO 1183-1 A
Dielectric Strength (1mm sheet)19kV/mmIEC 60243-1
Dissipation Factor (tan δ, at 50Hz)140 × 10⁻⁴—IEC 62631-2-1
Elongation (at break)290%ISO 37 Type 1
Oxygen Index (LOI)26%ASTM D 2863
Permittivity (at 50Hz)2.9—IEC 62631-2-1
Shore Hardness A30—DIN ISO 48-4
Tear Strength4.9N/mmASTM D 624 B
Tensile Strength1.7N/mm²ISO 37 Type 1
Volume Resistivity5 x 10¹⁴Ohm-cmIEC 62631-3-1

Table 3 of 3

2 rows
CharacteristicValueUnitMethod
Dynamic Viscosity (at 2.5 rpm, Component A)25000mPa·sBrookfield
Dynamic Viscosity (at 2.5 rpm, Component B)25000mPa·sBrookfield

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