Chemical Resistance Dioctyl phthalate, Chemical Resistance: Solvent, Gasoline, Motor oil, Chemical resistance Application Type Bond, Adhesive: Instant Adhesives 1 Part or 2 Part 1-Part Material Form Liquid Substrate Aluminum , Ceramics, Passivated Metals, Difficult-to-bond plastics, Rubber, Steel , Polyacetals, Elastomers, Plastics Manufacturer PermaBond Chemistry Cyanoacrylate, Ethyl Cure Method Moisture Cure Temperature (°C) 25 Cure Time (min) 1,440 Viscosity (cPs) High, 1,200 to 2,400 Color Colorless High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -54 Other Resistance Thermal Resistance Key Specifications Mil-Spec (United States Military Standard): A-46050C: MIL-A-46050C Type II Class 3
Technical Data for PermaBond 268
- Chemical Resistance - Dioctyl phthalate, Gasoline, Motor oil
- Chemical Resistance : Relative Solvent Resistance - Solvent
1 Part or 2 Part
- Industrial - Large gap fill
- Cyanoacrylate (CA) - Cyanoacrylate
- Other - Ethyl
- Dispenser - Automatic dispensing equipment
- Moisture / Condensation Cure - Moisture
- Clear / Transparent - Colorless
- Mil-Spec (United States Military Standard) : A-46050C : Type II, Class 3 - MIL-A-46050C Type II Class 3
Cure Temperature (°C) 25 Cure Time (min) 1,440 Viscosity (cPs) High, 1,200 to 2,400 Test Method Fixture or Handling Strength Time (min) 0.08 to 0.17, 0.08 to 0.17, 0.08 to 0.17 Test Method Set Time (min) Instant, 0.17, 0.17, 0.17 Test Method
Shear Strength (psi) High, 2,900 to 3,200 Test Method Impact Strength (psi) 3-5 (kJ/m²) Test Method
High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -54 Other Resistance Thermal Resistance
Dielectric Strength (V/mil) 250 Thermal Conductivity (W/m°K) 0.10
Shore A Hardness 85 Test Method Shore D Hardness 85 Test Method
Specific Gravity 1.100 Coefficient of Thermal Expansion (CTE) 90 x 10-6 (mm/mm/°C) Flash Point (°F) 181.4
Shelf Life Details Shelf Life stored at 2°C – 7°C (35°F – 45°F), 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 268
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.
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.
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.
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.
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Fixture or Handling Strength Time Test Methods
|Fixture or Handling Strength Time||Fixture-Handling Strength Test Method|
|0.08 to 0.17 min||Steel|
|0.08 to 0.17 min||Buna N Rubber|
|0.08 to 0.17 min||Phenolic|
Set Time Test Methods
|Set Time||Set Temperature||Test Method|
|0.17 min||25°C||Buna N Rubber|
Viscosity Test Methods
|1,200 to 2,400 cPs||25°C|
Impact Strength Test Methods
|Impact Strength||Cure Time||Cure Temperature||Test Method|
|3-5 (kJ/m²)||1,440 min||25°C||ASTM D-950|
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|
Shore A Hardness Test Methods
|Shore A Hardness||Shore Hardness Test Method|
|85||ISO868 (Shore D)|
Shore D Hardness Test Methods
|Shore D Hardness||Shore Hardness Test Method|
|85||ISO868 (Shore D)|