DuPont™ Liveo™
Medical-Grade
High-Consistency Rubbers (HCRs)
DuPont™ Liveo™
Medical-Grade
High-Consistency Rubbers (HCRs)
Choose DuPont™ Liveo™ High-Consistency Rubber (HCR) for unmatched reliability and innovation. Backed by six decades of healthcare expertise, Liveo™ delivers medical-grade silicone elastomers with exceptional tear resistance, biocompatibility and consistent quality. Manufactured in dedicated healthcare facilities under rigorous regulatory standards, Liveo™ HCR ensures superior performance for critical applications like tubing and molded components – helping you create safer, smarter medical devices with confidence.
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What is high-consistency rubber (HCR)?
High-consistency rubber (HCR) is a type of silicone elastomer known for high molecular weight and excellent mechanical properties, including durability, flexibility and resistance to extreme temperatures. HCRs are millable thermoset silicone elastomers that can be extruded continuously to form desired sizes and shapes before curing to create robust, biocompatible parts. While HCRs are particularly ideal for silicone tubing and medical devices, other common applications include seals, gaskets and components for healthcare and other industrial sectors.
Our product portfolio
Biomedical-grade HCRs with sustained performance for critical long-term implant applications (>29 days)*
| Product name | Key characteristics/ certifications | Typical applications | Durometer, Shore A | Cure, components & mix ratio |
Enhanced tear resistance, pigmentable; 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
35 |
1-part Base suitable for Peroxide or Platinum cure |
|
Enhanced tear resistance, pigmentable; 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
50 |
1-part Base suitable for Peroxide or Platinum cure |
|
Enhanced tear resistance, pigmentable; 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
65 |
1-part Base suitable for Peroxide or Platinum cure |
|
Enhanced tear resistance, pigmentable; 21CFR177.2600, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
24 |
Platinum-catalyzed; 2-part; 1:1 |
|
Enhanced tear resistance, pigmentable; 21CFR177.2600, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
35 |
Platinum-catalyzed; 2-part; 1:1 |
|
Enhanced tear resistance, pigmentable; 21CFR177.2600, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
50 |
Platinum-catalyzed; 2-part; 1:1 |
|
Enhanced tear resistance, pigmentable; 21CFR177.2600, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
65 |
Platinum-catalyzed; 2-part; 1:1 |
|
Enhanced tear resistance, pigmentable; 21CFR177.2600, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
78 |
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 HCRs with sustained performance for critical short-term implant and non-implant applications (<30 days)**
| Product name | Key characteristics/ certifications | Typical applications | Durometer, Shore A | Cure, components & mix ratio |
| Liveo™ C6-135 Class VI HCR | Pigmentable, 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
35 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-150 Class VI HCR | Pigmentable, 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
50 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-165 Class VI HCR | Pigmentable, 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
65 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-180 Class VI HCR | Pigmentable, 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
78 |
Platinum-catalyzed; 2-part; 1:1 |
| Liveo™ C6-235 Class VI HCR | Pigmentable, 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
35 |
1-part Base suitable for Peroxide or Platinum cure |
| Liveo™ C6-250 Class VI HCR | Pigmentable, 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
50 |
1-part Base suitable for Peroxide or Platinum cure |
| Liveo™ C6-265 Class VI HCR | Pigmentable, 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
65 |
1-part Base suitable for Peroxide or Platinum cure |
| Liveo™ C6-350LH Class VI HCR | Pigmentable, 21CFR177.2600, USP VI, Select ISO10993 and European Pharmacopeia |
Extrusion, sheet extrusion, calendering, transfer molding, compression molding |
50 |
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.
HCR applications & uses
Millable thermoset silicone elastomers that combine enhanced tear resistance with superior extrusion capabilities, Liveo™ High-Consistency Rubbers can be processed to precise sizes and shapes before curing.
These advanced materials are ideal for a variety of applications, including:
- Silicone tubing
- Fabrication of extruded parts
- Fabrication of molded medical/surgical/diagnostic devices and components
HCR benefits & advantages
Liveo™ HCR materials are available with attributes to address specific needs and applications:
- Qualified to meet or exceed test requirements of select U.S. Pharmacopeia Class VI, European Pharmacopoeia (Ph. Eur.), ISO 10993-1
- Excellent batch-to-batch reproducibility for critical applications
- Lower hysteresis options for demanding applications (e.g., peristaltic pump tubing)
