Songhan Plastic Technology Co.,Ltd.

NuSil MED-5440 Specialty Liquid Silicone Rubber - Unrestricted Medical Use

Category Polymer , Thermoset , Silicone , Silicone Rubber
Manufacturer NuSil
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF NuSil MED-5440 Specialty Liquid Silicone Rubber - Unrestricted Medical Use.pdf
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Material Notes:
Description: Liquid silicone rubbers, or LSRs, are elastomer systems reinforced with silica. They contain functional polymers of lower average molecular weight and viscosity when compared to high consistency rubbers (HCRs). They are typically supplied as two-component systems and formulated in a 1:1 mix ratio. Because their consistency is akin to petroleum jelly, they are often pumped with injection molding equipment to form molded components such as o-rings, gaskets, valves, seals, and other precision molded parts.Important Properties of Adhesives: LSRs are designed for liquid injection molding (LIM) processes which may utilize single or multi-cavity molds, or for overmolding processes. Originally designed for automated systems, they are developed with high volume applications in mind and benefit from their high strength. Features of liquid silicone rubbers include the following: Ideal for high throughput manufacturingPlatinum cure system—no post cure requiredTypical work time in excess of 72 hoursCure rapidly at elevated temperaturesEasily pigmented using NuSil color masterbatchesComments: FluorosiliconeCure System: PlatinumInformation provided by NuSil
Physical Properties Metric English Comments
Specific Gravity 1.39 g/cc
1.39 g/cc
Mechanical Properties Metric English Comments
Hardness, Shore A 40
35 - 50
35 - 50
Tensile Strength at Break 5.50 MPa
798 psi
7.90 MPa
1150 psi
Elongation at Break 175 %
175 %
335 %
335 %
Tear Strength 3.51 kN/m
20.0 pli
10.5 kN/m
60.0 pli
Processing Properties Metric English Comments
Extrusion Rate 3.75 g/min
3.75 g/min
Cure Time 30.0 min

@Temperature 150 °C
0.500 hour

@Temperature 302 °F
>= 1440 min

@Temperature 25.0 °C
>= 24.0 hour

@Temperature 77.0 °F
Work Time
Descriptive Properties Value Comments
Mix Ratio 1:1
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