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

Our products

Silbione™ HCR used in general Healthcare applications

	Silbione™ Products	Shore A Hardness	Tensile Strength MPa / psi	Elongation %	Tear Strength kNm-1 / ppi	Density	Appearance	Biocompatibility support *
Platinum curing 2K, Extrusion, High performance	HCRA 4520	20	8,6 / 1250	1000	39 / 225	1,11	Clear	♦
	HCRA 4530	30	11,7 / 1700	1000	44 / 250	1,12	Clear	♦
	HCRA 4540	40	11,4 / 1650	975	44 / 250	1,13	Clear	♦
	HCRA 4550	50	11,4 / 1650	950	52 / 300	1,14	Clear	♦
	HCRA 4560	60	10,7 / 1550	775	46 / 265	1,15	Clear	♦
	HCRA 4565	65	10,3 / 1500	725	44 / 250	1,17	Clear	♦
	HCRA 4570	70	10,0 / 1450	700	41 / 235	1,18	Clear	♦
	HCRA 4580	80	8,6 / 1250	650	39 / 225	1,2	Clear	♦

Platinum curing 2K, Extrusion, general purpose	HCRA 4250	50	8,2 / 1200	400	21 / 120	1,14	Hazy	♦
Platinum curing 2K, Extrusion, general purpose	HCRA 4265	65	8,8 / 1275	600	30 / 170	1,16	Hazy	♦

Peroxide curing**	HCRU 4440	48	> 8,5 / >1160	> 450	>2 5 / > 142	1,1	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™ Biomedical HCR M series used in Long Term Implantation

Silbione™ Biomedical HCRA Series	Shore A Hardness	Tensile Strength MPa / psi	Elongation %	Tear Strength kNm-1 / ppi	Room temperature pot life	Density	Appearance	Biocompatibility support *
HCRA M520	20	8,6 / 1250	1000	39.4 / 225	≥ 2hr	1,11	Clear	♦
HCRA M530	30	11,7 / 1700	1000	43.8 / 250	≥ 3hr	1,12	Clear	♦
HCRA M540	40	11,4 / 1650	975	43.8 / 250	≥ 4hr	1,13	Clear	♦
HCRA M550	50	11,4 / 1650	950	52.5 / 300	≥ 4hr	1,14	Clear	♦
HCRA M560	60	10,7 / 1550	775	46.4 / 265	≥ 4hr	1,15	Clear	♦
HCRA M565	65	10,3 / 1500	725	43.8 / 250	≥ 4hr	1,17	Clear	♦
HCRA M570	70	10,3 / 1500	700	41.2 / 235	≥ 4hr	1,18	Clear	♦
HCRA M580	80	8,6 / 1250	650	39.4 / 225	≥ 4hr	1,2	Clear	♦