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ELASTOSIL® LR 3170/40 A/B

Chemical Family
Silicones

ELASTOSIL® LR 3170/40 A/B is a self-adhesive liquid silicone rubber of the ELASTOSIL® LR 3170 series. It is a paste-like, low-inflammable, two-component compound with an extremely short curing time. The vulcanizates of this product are noted for their excellent mechanical and electrical properties.

Properties

Physical Form
Paste

Product families

Elastomers — Specialty Elastomers
  • Silicone Elastomers

Other characteristics

Brand
ELASTOSIL® LR
End Uses
Automobile Door Seals
Features

Cost Effective, Fast Curing, Flame Retardant, Good Electrical Properties, Good Mechanical Properties, Heat Resistance, Low Flammability, Low VOC, Low Volatility

Polymer Name
Liquid Silicone Rubber (LSR)
Tear Strength
23.0 - 23.0 kN/m
Processing Methods
Injection Molding, Liquid Injection Molding
Note
Cure conditions : 5 min / 165°C in press.
Markets
  • Automotive & Transportation
  • Industrial
Properties

ELASTOSIL® LR 3271 series are primerless, selfbonding grades that adhere to various plastic substrates (e.g. PET, PBT) and metals, but not in the mold. The bonding is improved by a subsequent heat treatment process (e.g. four hours at 100°C). Because of the individual surface properties each substrate must be tested before mass production. If necessary one has to check the development of adhesive properties over time and/or in an environment relevant to the application.

Flame Rating
UL 94 V0
Technology
Elastomers
Packaging Type
  • Drums
  • Pails
Specific Features
  • Food-contact
  • Hot water resistant
  • Reduced volatile contentSelf-adhesive
Material Features
  • Cost Effective
  • Fast Curing
  • Flame Retardant
  • Good Electrical Properties
  • Good Mechanical Properties
  • Heat Resistance
  • Low Flammability
  • Low VOC
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 2

9 rows
CharacteristicValueUnitMethod
Compression Set (at 22 hours, 125°C)29%DIN ISO 815-1 type B method A
Density1.12g/cm³DIN EN ISO 1183-1 A
Dielectric Strength (1mm sheet)29kV/mmIEC 60243-1
Elongation (at break)590%ISO 37 Type 1
Loss on Ignition35%EN ISO 4589-2 / ASTM D2863
Shore Hardness A45—DIN ISO 48-4
Tear Strength23N/mmASTM D 624 B
Tensile Strength9.8N/mm²ISO 37 Type 1
Volume Resistivity5 x 10¹⁵Ohm-cmIEC 62631-3-1

Table 2 of 2

2 rows
CharacteristicValueUnitMethod
Dynamic Viscosity (Shear rate 1 s⁻¹)1600000mPa·sDIN EN ISO 3219
Dynamic Viscosity (Shear rate 10 s⁻¹)400000mPa·sDIN EN ISO 3219

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