Silopren® LSR 2650

About
Silopren LSR 2650 is a two-component liquid silicone rubber for injection molding processes. In comparison to Silopren LSR 2050, Silopren LSR 2650 shows a lower viscosity, improved tear resistance and a higher reactivity. Therefore, it is also possible to reduce the vulcanization temperature while maintaining a standard crosslinking rate. The increased reactivity does not affect the properties of the vulcanizate. Key Features and Benefits Vulcanizates of Silopren LSR 2650 are typically distinguished by the following properties: High reactivity, lower viscosity, shorter cycle time Excellent thermal stability Biocompatible Sterilizable with ethylene oxide, steam and gamma radiation High stability and flexibility at low temperatures Good rubber-like properties, high tear resistance Long service life at dynamic stress High stability to ozone and ultraviolet light Outstanding resistance to aging Excellent dielectric behavior over a wide range of temperatures Easily pigmentable with LSR color pastes KTW approved Potential Applications Because of its outstanding properties, Silopren LSR 2650 is an excellent candidate to consider for the following elastomeric articles: Sealing elements O-rings Stoppers Diaphragms Keypads Bellows Catheters Pacifiers Baby teats Respiratory devices Vibration dampers Air vent flaps Switch cover Breast shields Nose pads Pressure cookers parts Spark plug boots Cable connectors Catheters, parts of medical technical equipment s.o.&&

About

Silopren LSR 2650 is a two-component liquid silicone rubber for injection molding processes. In comparison to Silopren LSR 2050, Silopren LSR 2650 shows a lower viscosity, improved tear resistance and a higher reactivity. Therefore, it is also possible to reduce the vulcanization temperature while maintaining a standard crosslinking rate. The increased reactivity does not affect the properties of the vulcanizate. Key Features and Benefits Vulcanizates of Silopren LSR 2650 are typically distinguished by the following properties: High reactivity, lower viscosity, shorter cycle time Excellent thermal stability Biocompatible Sterilizable with ethylene oxide, steam and gamma radiation High stability and flexibility at low temperatures Good rubber-like properties, high tear resistance Long service life at dynamic stress High stability to ozone and ultraviolet light Outstanding resistance to aging Excellent dielectric behavior over a wide range of temperatures Easily pigmentable with LSR color pastes KTW approved Potential Applications Because of its outstanding properties, Silopren LSR 2650 is an excellent candidate to consider for the following elastomeric articles: Sealing elements O-rings Stoppers Diaphragms Keypads Bellows Catheters Pacifiers Baby teats Respiratory devices Vibration dampers Air vent flaps Switch cover Breast shields Nose pads Pressure cookers parts Spark plug boots Cable connectors Catheters, parts of medical technical equipment s.o.&&

Product Description
Supplier	Momentive
Generic	硅橡胶,LSR
Material Status	Commercial: Active
Features	Weather resistance is good,Steam sterilized,noise reduction,Biocompatible,Low temperature toughness,Good tear strength,Radiation disinfection,Good stability,Ozone resistance,Heat Stabilized,Ethylene oxide disinfection,Good coloring,High reactivity
Availabilitys	Africa & Middle East ,North America,Latin America,Asia Pacific,Europe
Process Methods	Injection Molding

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density	1.12	g/cm³	DIN 53479

MECHANICAL	Nominal value	Unit	Test method
Shore hardness
Shaw’s A	52		DIN 53505

elastic body	Nominal value	Unit	Test method
tensile strength	10.0	MPa	DIN 53504
Tensile strain
fracture	550	%	DIN 53504
Compression deformation
175℃，22 hr	25	%	DIN 53517

THERMAL	Nominal value	Unit
Thermosetting components
Component A	按重量计算的混合比: 1.0
Component B	按重量计算的混合比: 1.0
Post curing time
200℃	4.0	hr

Supplementary information	Nominal value	Unit	Test method
Vulcanization（175℃）	10.0	min

Uncured Properties	Nominal value	Unit	Test method
colour
—	Translucent
—	Translucent
viscosity			DIN 53018
20℃	450	Pa·s	DIN 53018
20℃	450	Pa·s	DIN 53018
storage stability
20 ℃	4300	min

Notes
1. Typical properties: these are not to be construed as specifications.
2. Part B
3. Part A
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