Liquid Silicone Rubber (LSR) Materials

Benefits of Silicone
Liquid silicone rubber
Benefits of Silicone

Silicone is an extremely versatile material that lends itself to a broad range of application conditions. As a liquid raw material, silicone offers advantages in processing that render it a premier choice of material for technical components in high volumes.

  • Available in hardnesses from 10 – 80 Shore A
  • Platinum curing gives the highest purity material
  • Excellent low and high temperature resistance
  • Offers excellent resistance to ozone, weather and UV rays
  • Water repellant
  • Offers excellent mechanical damping properties
  • Possesses outstanding electrical properties:

Availability of UL94 listed types

  • Specific to food contact applications:
    1. Compliant with FDA, BfR, NSF
    2. Neutral in taste and odor
  • Specific to potable water applications:
    1. Compliant with WRAS, KTW, ACS, NSF
  • Specific to biomedical and pharmaceutical applications:
    1. Highest purity
    2. Bio compatibility to ISO 10993 and USP Class VI
    3. Compliant with European Pharmacoepia 3.2.9
    4. Withstands common sterilization methods such as steam, y-radiation,EtO

Trelleborg Calls it 2C LSR Technology - The Ultimate LSR Process

LSR membrane

One of Trelleborg's most outstanding capabilities is the simultaneous injection of LSR in combination with technical plastics, 2C LSR technology. In what is commonly also referred to as 2K, 2-shot, multi-component injection molding, or co-injection, Trelleborg employs highly advanced and sophisticated tool and process engineering to develop the most innovative solutions, combining two, three or more individual materials into one fully bonded, robust component.

General advantages of LSR

  • Enables production of part geometries and technical solutions not possible otherwise
  • Flashless, wasteless product quality
  • Provides the highest consistency in product dimensions, precision, and overall quality due to lean manufacturing processes
  • Enables highest volume production as a result of short cycle times
  • Offers the lowest TCQ (Total Cost of Quality)

Advantages of 2C LSR technology

  • Offers designers much more latitude in design solutions
  • Can integrate multiple components into one fully-bonded solution
  • Single component is more robust than an assembly of individual parts
  • Provides lighter weight components
  • Risks and costs associated with secondary assembly can be avoided
  • Enables more hygienic design solutions
  • Lowers cost by reducing the number of components in the customer’s supply chain