PermaBond 108 Datasheet PermaBond 108

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  • Description for PermaBond 108

    An intermediate viscosity cyanoacrylate that is used to bond through intermediate gaps. It is fast setting and suitable for use on plastics, rubber and metals.

    *See Terms of Use Below

    Chemical Resistance Dioctyl phthalate, Chemical Resistance: Solvent, Gasoline, Motor oil
    Application Type Bond, Adhesive: Instant Adhesives
    1 Part or 2 Part 1-Part
    Material Form Liquid
    Substrate Phenolic, Metals, Nylon, Plastics, Polyethylene, PTFE, Polyesters, Polypropylene, Polyurethane, Buna N Rubber, Grit blasted steel, Silicone, Rubber, Steel
    Industry Printed circuit boards (PCBs)
    Manufacturer PermaBond
    Chemistry Ethyl cyanoacrylate, Solvent-free
    Cure Method Moisture
    Cure Temperature (°C) 25
    Gap Fill (in) Intermediate gaps, 0.25 mm
    Cure Time (min) Rapid, 1,440
    Viscosity (cPs) Intermediate, 400 to 600
    Color Colourless
    High Temperature Resistance (°C) 82
    Low Temperature Resistance (°C) -54
    Other Resistance Thermal Resistance
    Key Specifications CID (United States Government Commercial Item Description): A-A-3097: CID A-A-3097 Type II Class 3 (new designs), Mil-Spec (United States Military Standard): A-46050C: MIL-A-46050C Type II Class 3 (existing designs)

  • Technical Data for PermaBond 108

    *See Terms of Use Below

    Overview
    • Chemical Resistance
      • Chemical Resistance - Dioctyl phthalate, Gasoline, Motor oil
      • Chemical Resistance : Relative Solvent Resistance - Solvent
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Liquid
    • Substrate
    • Industry
      • Printed Circuit Board (PCB) - Printed circuit boards (PCBs)
      • Industrial - Molded parts
      • Other - Film
    • Chemistry
    • Application Method
      • Dispenser - Automated dispensing
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Clear / Transparent - Colourless
    • Key Specifications
      • CID (United States Government Commercial Item Description) : A-A-3097 : Type II, Class 1 - CID A-A-3097 Type II Class 3 (new designs)
      • Mil-Spec (United States Military Standard) : A-46050C : Type II, Class 3 - MIL-A-46050C Type II Class 3 (existing designs)
    Specifications
    Cure Specs
    Cure Temperature (°C) 25
    Gap Fill (in) Intermediate gaps, 0.25 mm
    Cure Time (min) Rapid, 1,440
    Viscosity (cPs) Intermediate, 400 to 600 Test Method
    Fixture or Handling Strength Time (min) 0.17, 0.17, 0.17 Test Method
    Set Time (min) Fast Test Method
    Bond Strength
    General Bond Strength (psi) Strong
    Shear Strength (psi) 2,900 to 3,200 Test Method
    Impact Strength (psi) 3-5 (kJ/m²) Test Method
    Material Resistance
    High Temperature Resistance (°C) 82
    Low Temperature Resistance (°C) -54
    Other Resistance Thermal Resistance
    Conductivity
    Dielectric Strength (V/mil) 2.5 (kV/mm) Test Method
    Thermal Conductivity (W/m°K) 0.10 Test Method
    Dielectric Constant 2.50 Test Method
    Hardness
    Shore D Hardness 85 Test Method
    Other Properties
    Specific Gravity 1.100 Test Method
    Coefficient of Thermal Expansion (CTE) 90e-6 (mm/mm/°C) Test Method
    Flash Point (°F) 181.4
    % Solids (%) 100
    Business Information
    Shelf Life Details Cyanoacrylate adhesives are subject to an aging process and have a limited shelf life. When stored in the original unopened container in a refrigerator between 2°C and 7°C (35°F and 45°F), the shelf life is 12 months from the date of shipment from Permabond. It could be less when stored at ambient environment depending on conditions of temperature and humidity.
    Shelf Life Temperature (°F) 36 to 45
    Shelf Life Type From the date of shipment
    Shelf Life (mon) 12

  • Best Practices for PermaBond 108

    *See Terms of Use Below

    1. Surface Preparation

      Surfaces should be clean, dry and grease-free before applying the adhesive. Use a suitable solvent (such as acetone or isopropanol) for the degreasing of surfaces. Some metals such as aluminium, copper and its alloys will benefit from light abrasion with emery cloth (or similar), to remove the oxide layer

    2. Application

      Directions for Use: Apply the adhesive sparingly to one surface.

      Bring the components together quickly and correctly aligned.

      Apply sufficient pressure to ensure the adhesive spreads into a thin film

      Do not disturb or re-align until sufficient strength is achieved, normally in a few seconds.

      Any surplus adhesive can be removed with Permabond CA solvent, nitromethane or acetone.

    3. Curing

      The cure rates of cyanoacrylates are dependent on the substrate used, gap, and relative humidity. Cyanoacrylate adhesives have limited gap-filling capability. The speed of cure and the ultimate strength might decrease as the gap increases. The cure speed of cyanoacrylates will depend on the ambient relative humidity

      the cure rate generally increases with increasing humidity. The cure rate of cyanoacrylates can be increase by applying activator QFS16. However, the application of the activator might decrease the ultimate strength of the bond.

    4. Clean-Up

      When large quantities of cyanoacrylate adhesives are accidentally spilled, the area should be flooded with water that will cause the liquid cyanoacrylate to cure. The cured material can then be scraped from the surface. NOTE: The liquid adhesive should not be wiped up with rags or tissue. The fabric will cause polymerization and large quantities of adhesive will generate heat on cure, causing smoke and strong irritating vapors. ALWAYS FLOOD WITH EXCESS WATER TO CLEAN UP SPILL CONDITIONS.

  • Comparable Materials for PermaBond 108

    *See Terms of Use Below

    Spec Engine® Results

    • PermaBond
      799(PermaBond)

      • Single component • Ethyl cyanoacrylate • High viscosity • Fast cure •Surface insensitive • Extremely fast setting • Rapidly bond • No solvents • Colourless.

    • PermaBond
      795(PermaBond)

      Surface insensitive – cures rapidly on most surfaces, wide range of viscosities, fast setting, rapid cure.

    • PermaBond
      170(PermaBond)

      Medium viscosity, maximum gap fill. Fast setting with rapid development of high strength.

    • Compare All
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Set Time Test Methods
Set Time Test Method
Fast
Fixture or Handling Strength Time Test Methods
Fixture or Handling Strength Time Fixture-Handling Strength Test Method
0.17 min Handling times can be affected by temperature, humidity and specific surfaces being bonded. Larger gaps or acidic surfaces will also reduce cure speed but this can be overcome by the use of Permabond C Surface Activator (CSA) or Permabond QFS 16., (0.3 N/mm² shear strength is achieved), (Steel), Curing
0.17 min Handling times can be affected by temperature, humidity and specific surfaces being bonded. Larger gaps or acidic surfaces will also reduce cure speed but this can be overcome by the use of Permabond C Surface Activator (CSA) or Permabond QFS 16., (0.3 N/mm² shear strength is achieved), ((Buna N Rubber), Curing
0.17 min Handling times can be affected by temperature, humidity and specific surfaces being bonded. Larger gaps or acidic surfaces will also reduce cure speed but this can be overcome by the use of Permabond C Surface Activator (CSA) or Permabond QFS 16., (0.3 N/mm² shear strength is achieved), (Phenolic), Curing
Viscosity Test Methods
Viscosity Test Method Temperature
Intermediate
400 to 600 cPs Uncured 25°C
Shear Strength Test Methods
Shear Strength Cure Time Cure Temperature Substrate Test Method
2,900 to 3,200 psi 1,440 min 25°C Steel ISO4587, Cured, Strength results will vary depending on the level of surface preparation and gap.
Impact Strength Test Methods
Impact Strength Cure Time Cure Temperature Test Method
3-5 (kJ/m²) 1,440 min 25°C ASTM D-950, Cured
Dielectric Strength Test Methods
Dielectric Strength Test Method
2.5 (kV/mm) Cured
Thermal Conductivity Test Methods
Thermal Conductivity Test Method
0.10 W/m°K Coefficient of thermal conductivity, Cured
Dielectric Constant Test Methods
Dielectric Constant Test Method
2.50 Cured, @10kHz
Shore D Hardness Test Methods
Shore D Hardness Shore Hardness Test Method
85 ISO868, Cured
Specific Gravity Test Methods
Specific Gravity Test Method
1.100 Uncured
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) CTE Test Method
90e-6 (mm/mm/°C) Cured