Medical grade High Consistency Rubber for Healthcare Applications

Elkem Silicones understands the importance of durability and processability when producing parts for the healthcare market. Silbione™ High Consistency Rubbers (HCRs) are two component platinum-catalyzed heat cure rubbers designed for high strength molding and extrusion processes.

The excellent mechanical characteristics of Silbione™ HCRs make them ideal for a variety of medical device applications including molded medical device parts, balloon catheters and extruded tubing. Our expanding Silbione™ product line offer advantages for producing high quality parts for the healthcare market including easy milling and extrusion, good clarity, high mechanical strength, temperature resistance and high-performance physical properties.

Elkem Silicones offers the following ranges for High Consistency Rubber (HCR) under the Silbione™ brand:

Our HCR Series	Characteristics	LONG TERM IMPLANTATION *	MEDICAL GRADE**
Silbione™ Biomedical HCRA M5 Series	Extrusion, high perf. Polyaddition 2K	♦
Silbione™ HCRA 45 Series	Extrusion, high perf. Polyaddition 2K		♦
Silbione™ HCRA 42 Series	Extrusion, general Polyaddition 2K		♦
Silbione™ HCRU 44 Series	Peroxyde curing		♦

* 30 days and more inside the body

** less than 29 days inside the body

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Platinium Curing 2K, Extrusion, High Performance for Long Term Implantation

Silbione™ poduct	Durometer ShA	Tensile MPa / psi	Elongation %	Tear Strength kNm-1 / ppi	Specific density	Appearance	Long Term Implantation support*
HCRA M520 A+B	20	8,6 / 1250	1 000	39 / 225	1,11	Clear	♦
HCRA M530 A+B	30	11,7 / 1700	1 000	44 / 250	1,12	Clear	♦
HCRA M540 A+B	40	11,4 / 1650	975	44 / 250	1,13	Clear	♦
HCRA M550 A+B	50	11,4 / 1650	950	52 / 300	1,14	Clear	♦
HCRA M560 A+B	60	10,7 / 1550	775	46 / 265	1,15	Clear	♦
HCRA M565 A+B	65	10,3 / 1500	725	44 / 250	1,17	Clear	♦
HCRA M570 A+B	70	10 / 1450	700	41 / 235	1,18	Clear	♦
HCRA M580 A+B	80	8,6 / 1250	650	39 / 225	1,20	Clear	♦

Platinium Curing 2K, Extrusion, High Performance

Silbione™ poduct	Durometer ShA	Tensile MPa / psi	Elongation %	Tear Strength kNm-1 / ppi	Specific density	Appearance	Biocompatibility support*
HCRA 4520 A+B	20	8,6 / 1250	1 000	39 / 225	1,11	Clear	♦
HCRA 4530 A+B	30	11,7 / 1700	1 000	44 / 250	1,12	Clear	♦
HCRA 4540 A+B	40	11,4 / 1650	975	44 / 250	1,13	Clear	♦
HCRA 4550 A+B	50	11,4 / 1650	950	52 / 300	1,14	Clear	♦
HCRA 4560 A+B	60	10,7 / 1550	775	46 / 265	1,15	Clear	♦
HCRA 4565 A+B	65	10,3 / 1500	725	44 / 250	1,17	Clear	♦
HCRA 4570 A+B	70	10 / 1450	700	41 / 235	1,18	Clear	♦
HCRA 4580 A+B	80	8,6 / 1250	650	39 / 225	1,20	Clear	♦

Platinium Curing 2K, Extrusion, General Purpose

Silbione™ poduct	Durometer ShA	Tensile MPa / psi	Elongation %	Tear Strength kNm-1 / ppi	Specific density	Appearance	Biocompatibility support*
HCRA 4250 A+B	50	8,2 / 1200	400	21 / 120	1,14	Hazy	♦
HCRA 4265 A+B	65	8,8 / 1275	600	30 / 170	1,16	Hazy	♦

Peroxyde Curing**

Silbione™ poduct	Durometer ShA	Tensile MPa / psi	Elongation %	Tear Strength kNm-1 / ppi	Specific density	Appearance	Biocompatibility support*
HCRU 4440	48	>8,5 / >1160	> 450	>25 / >142	1,10	Clear	♦
HCRU 4460	62	>8,5 / >1160	> 360	>28 / >160	1,15	Clear	♦
HCRU 4470	70	>8,5 / >1160	> 330	>30 / >170	1,18	Clear	♦

*Silbione™ grade materials have been tested for biocompatibility according to applicable ISO 10993 and/or USP Class VI standards. They are not supported for implantation over 30 days.
**HCRU is an uncatalyzed base: typical properties were achieved with the addition of a peroxide catalyst.The typical properties listed above are not intended for use in preparing specifications. For test methods and specifications, please contact an Elkem representative.
User has sole responsibility to determine product suitability for intended uses and applications.