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DuPont™ Liveo™Medical-GradeLiquid Silicone Rubbers (LSRs)
DuPont™ Liveo™ Medical-Grade Liquid Silicone Rubber (LSR) combines precision, safety and performance for critical healthcare applications. Our platinum-catalyzed elastomers are engineered for liquid injection molding – delivering fast cure, consistent quality and superior mechanical properties without peroxides or plasticizers. Backed by decades of silicone expertise and rigorous regulatory compliance, Liveo™ LSR helps you design reliable, biocompatible components for medical devices with confidence.
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What is liquid silicone rubber (LSR)?
Liquid silicone rubber (LSR) is a two-part, platinum-catalyzed silicone elastomer designed for liquid injection molding. It offers excellent flexibility, durability and resistance to a wide range of temperatures and providing biocompatibility and chemical stability. LSR is widely used for high-volume production of precision parts in medical devices, in which consistent quality and safety are critical.
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Biomedical-grade LSRs with sustained performance for critical long-term implant applications (>29 days)*
*Use of this material for implantation ≥30 days requires indemnification. It is the user’s responsibility to ensure the safety and efficacy of these materials for all intended uses. While these materials have passed screening tests that are applicable to products intended for implantation, DuPont makes no representation concerning the suitability of these products for applications of greater than 29 days of implantation in the human body.
Class VI LSRs with sustained performance for critical short-term implant and non-implant applications (<30 days)**
**It is the user’s responsibility to ensure the safety and efficacy of these materials for all intended uses. While these materials have passed screening tests that are applicable to products intended for implantation for up to 29 days, DuPont makes no end-use representation based on such testing. Nor does DuPont make any representation concerning the suitability of these products for applications of greater than 29 days of implantation in the human body.
LSR applications & uses
Our liquid silicone rubber elastomers are well-suited for a variety of specialized medical applications, including:
- Intricate designs and close-tolerance parts; can be used for spacers, sheets, housing or protection
- Mesh or fabric coating
- Injection molding of precision and intricate parts of medical devices (e.g., O-rings, stoppers and closures)
- Short-term implants, such as wound drains and gastric feeding tubes that are in place for <30 days
- Class III medical devices or long-term (90+ days) implantation
LSR benefits & advantages
Medical-grade Liveo™ LSRs are manufactured to deliver attributes to meet demanding applications:
- Solventless; easy processing
- Highly reproducible and stable materials
- Contains no peroxides, peroxide by-products, chlorophenyls or PCBs
- No organic plasticizers, phthalates or latex additives
- Fast cure and batch-to-batch consistency
- Qualified to meet or exceed test requirements of Select U.S. Pharmacopeia Class VI, European Pharmacopoeia (Ph. Eur.), ISO 10993-1
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