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Metal adhesives

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Permabond 268 Cyanoacrylate, General purpose
Categories: Polymer; Adhesive; Thermoset; Acrylic/Cyanoacrylate Adhesive

Material Notes: PERMABOND® 268 is a medium-high viscosity cyanoacrylate for large gap fill applications. Permabond® 268 provides faster set times and improved gap-filling capability compared to conventional cyanoacrylates. The adhesive bonds to a wide range of substrates including metals, ceramics, plastics and elastomers. It is excellent for bonding difficult-to-bond plastics such as polyacetals. It can also be used on passivated metal surfaces.

Features & Benefits:

  • Versatile and general purpose
  • Good gap fill ability
  • Instant setting

Information provided by Permabond.

Key Words: A-46060C Type II, Class 3
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Specific Gravity 1.10 g/ccUncured
Viscosity 1200 - 2400 cP
@Temperature 25.0 °C
Uncured
Storage Temperature 2.00 - 7.00 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 85ISO 868
Adhesive Bond Strength 20.0 - 22.0 MPaSteel, Shear; ISO 4587
Impact 3.0 - 5.0kJ/m2 Adhesive Impact Strength; ASTM D950
 
Thermal PropertiesOriginal ValueComments
CTE, linear 90.0 µm/m-°C
Thermal Conductivity 0.100 W/m-K
Maximum Service Temperature, Air 180 °F
Minimum Service Temperature, Air -80.0 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 5.00 - 10.0 secSteel, handling time
 5.00 - 10.0 secBuna N Rubber, handling time
 5.00 - 10.0 secPhenolic, handling time
 24.0 hourfull strength
 
Descriptive Properties
AppearanceColorlessUncured
Maximum Gap Fill (mm)0.43
Strength Retention10% at 150°CRelative to 0°C
 100% at 0°CRelative to 0°C
 30% at 100°CRelative to 0°C
 55% at -50°CRelative to 0°C
 90% at 50°CRelative to 0°C

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PPERMA34 / 56142

Metal adhesives

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