Master Bond MasterSil 153Med Black Two Component Silicone

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Master Bond MasterSil 153Med Black Two Component Silicone
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Key Features: Meets ISO 10993-5 for cytotoxicity Self priming feature Serviceable from -65°F to +400°F Exceptionally high tensile lap shear strength Product Description: Master Bond MasterSil 153Med Black is a two component silicone compound with a paste consistency for high performance bonding and sealing. It passes ISO 10993-5 for cytotoxicity and can be used in medical device applications. MasterSil 153Med Black is an addition cured system and does not require exposure to air for cross-linking. It has a convenient one to one mix ratio by weight, and will not outgas while curing. It is 100% solids and contains no solvents. MasterSil 153Med Black exhibits typical silicone flexibility and high temperature resistance. MasterSil 153Med Black has an exceptionally long working life and very low exotherm. It bonds well to a wide variety of substrates including most metals, many plastics, glass and ceramic. Most importantly, it will bond well to cured silicone rubber. It has superb electrical insulation properties. Its remarkable flexibility allows it to withstand severe thermal cycling and resist vibration and shock. It has a self priming feature that enhances the bonding properties of the system. Also, it is very water resistant. MasterSil 153Med Black is translucent and is serviceable over the broad temperature range of -65°F to +400°F. It is widely used in medical device applications where high flexibility and splendid temperature resistance are required. Product Advantages: Addition cured, no by-products released during cure, does not require air for curing Low exotherm, very long pot life Bonds well to many substrates, including silicone rubber Exceptionally high tensile lap shear strength Meets ISO 10993-5 specifications Information provided by Master Bond, Inc.
Vendors:	Master Bond is a leading manufacturer of adhesives, sealants, coatings and potting compounds. Master Bond’s vast product line consists of over 3,000 epoxy, polyurethane, silicone, cyanoacrylate and latex adhesives that vary in viscosity, cure speed, strength, chemical resistance, electrical properties, etc. Our custom adhesives offer design flexibility and provide excellent bonding performance. Visit www.masterbond.com. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Viscosity	50000 - 250000 cP	50000 - 250000 cP	Part B, thixotropic
	150000 - 300000 cP	150000 - 300000 cP	Part A, thixotropic

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	20.0 - 35.0	20.0 - 35.0
Tensile Strength	2.76 - 3.45 MPa	400 - 500 psi
Elongation at Break	400 - 500 %	400 - 500 %
Adhesive Bond Strength	3.79 - 5.17 MPa	550 - 750 psi	lap shear, aluminum to aluminum

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+14 ohm-cm	1.00e+14 ohm-cm
Dielectric Constant	3.20 @Frequency 1e+6 Hz	3.20 @Frequency 1e+6 Hz
Dielectric Strength	17.7 kV/mm @Thickness 3.17 mm	450 kV/in @Thickness 0.125 in

Thermal Properties	Metric	English	Comments
CTE, linear	350 - 400 µm/m-°C	194 - 222 µin/in-°F
Maximum Service Temperature, Air	204 °C	399 °F
Minimum Service Temperature, Air	-54.0 °C	-65.2 °F

Processing Properties	Metric	English	Comments
Cure Time	120 - 180 min @Temperature 93.3 °C	2.00 - 3.00 hour @Temperature 200 °F	option
	2880 - 4320 min @Temperature 23.9 °C	48.0 - 72.0 hour @Temperature 75.0 °F	option
Working Life	300 - 420 min	300 - 420 min	after mixing, 100 gram batch
Shelf Life	6.00 Month	6.00 Month	in original, unopened containers

Descriptive Properties
Mixing ratio	1:1		Part A to B
Optimum cure schedule	Overnight at room temperature followed by 1 hour at 150-200°F

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PMASTM5804 / 323321

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