company tower banner
Wacker Chemie AG Company Logo

ELASTOSIL® LR 34004/50 A/B

ELASTOSIL® LR 34004/50 A/B is a paste-like, white, two-component liquid silicone rubber with a very short curing time. Vulcaniates are noted for their radio-opaqueness. ELASTOSIL® LR 34004/50 A/B contains barium sulfate as a radio-opaque additive, which meets the requirements of the US and European Pharmacopeia.

Brand: ELASTOSIL® LR (114 products)

Polymer Name: Liquid Silicone Rubber (LSR)

Processing Methods: Injection Molding

End Uses: Bathroom Accessories, Medical Devices, Medical/Healthcare Applications

Features: Cost Effective, Fast Curing, Food Contact Acceptable, Low VOC, Low Volatility, Radiopaque, X-Ray Shielding

Tear Strength: 26.0 - 26.0 kN/m

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Features & Benefits

Labeling Claims
Materials Features
Special Features
  • Food-contact
  • Reduced volatile content
  • X-ray opaque

Applications & Uses

Markets
Applications
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Applications

Medical Equipment

Application Details
  • ELASTOSIL® LR 34004/50 A/B is particularly suitable for the economical production of large series of injection-molded articles.
  • ELASTOSIL® LR 34004/50 A/B is designed for medical and pharmaceutical applications.
  • Properly cured and post-cured vulcanizates of ELASTOSIL® LR 34004/50 A/B can be used for food contact applications and are suitable for use under the Recommendation "XV. Silicones" of the BfR and FDA 21 CFR §177.2600 "Rubber Articles Intended for Repeated Use" considering any given limitations on extractable and volatile substances.

Properties

Color
Physical Form
Cured Properties
ValueUnitsTest Method / Conditions
Density1.23g/cm³DIN EN ISO 1183-1 A
Elongation (at break)450%ISO 37 Type 1
Shore Hardness A50-DIN ISO 48-4
Tear Strength26N/mmASTM D 624 B
Tensile Strength7.8N/mm²ISO 37 Type 1
Uncured Properties
ValueUnitsTest Method / Conditions
Dynamic Viscosity (Shear rate 1 s⁻¹)980000mPa·sDIN EN ISO 3219
Properties

ELASTOSIL® LR 34004/50 A/B contains barium sulfate as a radio-opaque additive which meets the requirements of the US and European Pharmacopeia.

Note

Cure conditions: 5 min / 165 °C in press, post-cured 4 h / 200 °C for cured properties.

Regulatory & Compliance

Technical Details & Test Data

Test Results

The following studies were performed on vulcanizates of ELASTOSIL® LR 34004/50 A/B according to ISO 10993:

  • Cytotoxicity (ISO 10993-5)
  • Sensitation LLNA (ISO 10993-10)
  • Pyrogenicity (ISO 10993-11)

The following studies were performed on vulcanizates of ELASTOSIL® LR 34004/50 A/B according to USP class VI:

  • Acute systemic toxicity
  • Intracutaneous toxicity
  • Implantation test

No adverse effects have been detected at any of the studies performed.

Packaging & Availability

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

This product is available in 20 kg pail and 200 kg drum kits.

Storage & Handling

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.