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Metal adhesives

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Master Bond MasterSil 803 One component Room Temperature Curing Non- Corrosive Silicone Elastomer
Categories: Polymer; Adhesive; Thermoset; Silicone; Silicone, RTV, Adhesive/Sealant Grade

Material Notes: Key Features:
  • Easy to handle
  • Room temperature curing
  • Exceptionally wide service temperature range
  • Bonds well to a wide variety of substrates
Product Description: MasterSil 803 is a one component, neutral curing oxime type silicone system for high performance bonding, sealing, coating and formed-in-place gaskets. MasterSil 803 has a paste consistency and a non-drip application feature, and upon curing is translucent in color. Most noteworthy is the exceptionally wide temperature range which extends from -180°F to +500°F. It bonds well to a wide variety of substrates including glass, metals, many plastics, composites and various rubber materials including silicone. This system is a very good electrical insulator as well. MasterSil 803 can be used in a wide variety of aerospace, electronic, optical and specialty OEM type applications where special low and/or high serviceability is desirable.

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.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.10 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 45 - 50
Tensile Strength 550 - 650 psi
Elongation at Break 250 - 300 %
Adhesive Bond Strength 200 - 250 psiTensile Lap, Aluminum to Aluminum
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cm
Dielectric Constant 2.8
@Frequency 60 Hz
Dielectric Strength 500 V/mil
@Thickness 3.17 mm
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 500 °F
Minimum Service Temperature, Air -180 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 120 - 168 hour
Tack-Free Time 20.0 - 30.0 min75°F, >50% humidity
Shelf Life 6.00 Month
@Temperature <=23.9 °C
in original, unopened containers
 
Descriptive Properties
Colortranslucent
Viscositypaste

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PMASTM937 / 185530

Metal adhesives

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