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Master Bond adhesives

CHT ALPATEC 5663/20 RTV Silicone Adhesive Sealant
Categories: Polymer; Thermoset; Silicone; Silicone, RTV, Adhesive/Sealant Grade

Material Notes: Description: This is a 1-part, RTV (Room Temperature Vulcanizing) silicone adhesive sealant. It is one in a range of Acetoxy cure products which are solvent free. During cure, it liberates a very small amount of acetic acid, giving rise to the familiar ‘vinegar’ odour, which quickly dissipates after cure. It exhibits good primer-less adhesion to many substrates including but not limited to; aluminium, nonferrous metals, steel, glass, enamelled surfaces, fabrics ceramics, thermosetting, thermoplastics and wood and cures rapidly at room temperature when in contact with atmospheric moisture. This product is not to be recommended for use with galvanized metals, ferrous metals, copper and its associated alloys or in electronic assemblies.

Key Features

  • Flowable, high self-levelling characteristics
  • Quick tack-free skin formation
  • Excellent latex release
  • Good temperature stability from – 60 °C/-76°F to + 200°C/392°F
Key Applications:
  • Excellent weatherability, remain flexible
Application: Sealing and bonding of glass panes to metal, coating conveyor belts

Information provided by CHT Group

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Physical PropertiesMetricEnglishComments
Density 1.10 g/cc0.0397 lb/in³DIN 53 479, 23
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 1515DIN 53 505
Tensile Strength 1.00 MPa145 psiDIN 53 504, S 3 A
Elongation at Break 350 %350 %DIN 53 504, S 3 A
Modulus of Elasticity 0.000350 GPa
@Strain 100 %
0.0508 ksi
@Strain 100 %
DIN 53 504, S 3 A
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 200 °C392 °F
Minimum Service Temperature, Air -60.0 °C-76.0 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 16.0 min0.267 hourSkin formation; DIN 50 014 - 23/50-2
Shelf Life 12.0 Month12.0 Month
 
Descriptive Properties
ColorBlack
Cure typeAcetate
Flow105 mm10 ml
Self BondingYes

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.

PCHTSIL178 / 314661

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