DuPont™ Liveo™
Medical-Grade
Liquid Silicone Rubbers (LSRs)
DuPont™ Liveo™
Medical-Grade
Liquid 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.
Our product portfolio
Biomedical-grade LSRs with sustained performance for critical long-term implant applications (>29 days)*
| Product name | Key characteristics/ certifications | Processing methods | Durometer, Shore A | Cure, components & mix ratio |
| Liveo™ Q7-4840 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia | Injection molding |
43 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ Q7-4850 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
50 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ 7-4860 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
60 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ 7-4870 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
70 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ 7-6830 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
30 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ 7-6840 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
40 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ 7-6860 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
60 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ Q7-7840 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
40 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ Q7-7850 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
50 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ Q7-7870 BioMedical Grade LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
70 |
Platinum-catalyzed; 2-part; 1:1 |
*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)**
| Product name | Key characteristics/ certifications | Processing methods | Durometer, Shore A | Cure, components & mix ratio |
| Liveo™ C6-530 Class VI LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia | Injection molding |
30 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-540 Class VI LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
40 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-550 Class VI LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
50 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-560 Class VI LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
60 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-570 Class VI LSR | Pigmentable; 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
70 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-720 Class VI LSR | Pigmentable; reduced fouling, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
20 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-740 Class VI LSR | Pigmentable; reduced fouling, 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
40 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-750 Class VI LSR | Pigmentable; reduced fouling, 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
50 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-770 Class VI LSR | Pigmentable; reduced fouling, 21CFR177.2600, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
70 |
Platinum-catalyzed; 2-part; 1:1 |
NEW! |
Improved rheology; Pigmentable, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
30 |
Platinum-catalyzed; 2-part; 1:1 |
NEW! |
Improved rheology; Pigmentable, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
40 |
Platinum-catalyzed; 2-part; 1:1 |
NEW! |
Improved rheology; Pigmentable, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
50 |
Platinum-catalyzed; 2-part; 1:1 |
NEW! |
Improved rheology; Pigmentable, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
60 |
Platinum-catalyzed; 2-part; 1:1 |
NEW! |
Improved rheology; Pigmentable, USP VI,Select ISO10993 and European Pharmacopeia |
Injection molding |
70 |
Platinum-catalyzed; 2-part; 1:1 |
**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
Resources
Application & Product Selector Guide - DuPont™ Liveo™ Liquid Silicone Rubber
Application & Product Selector Guide - Silicone elastomers for medical device applications
Application & Product Selector Guide - DuPont™ Liveo™ High-Consistency Rubber application & product selection guide
Application & Product Selector Guide - DuPont™ Liveo™ Liquid Silicone Rubber (LSR) for Medical Devices
C6-8XX Liquid Silicone Rubber: Improved-rheology LSR for process flexibility