ARALDITE® 2080-05 A/B

• Low odor
• Snap-curing
• High strength
• High flexibility
• Non-flammable

• The resin/hardener mix may be applied manually or robotically to the pretreated and dry joint surfaces.
• A layer of adhesive 0.25 mm thick will normally impart the greatest lap shear strength to the joint.
• The joint components should be assembled and secured in a fixed position as soon as the adhesive has been applied.
• Warning: the cure reaction can generate a high amount of heat; it is not recommended to mix large amounts of material at room temperature.

Pretreatment :

• The strength and durability of a bonded joint are dependent on proper pretreatment of the surfaces to be bonded; however the methacrylate adhesives can be used effectively with little surface preparation.
• Ideally joint surfaces should be cleaned with a good degreasing agent such as acetone, iso-propanol (for plastics) or other proprietary degreasing agents in order to remove all traces of oil, grease and dirt.
• Low grade alcohol, gasoline (petrol) or paint thinners should never be used.
• The strongest and most durable joints are obtained by either mechanically abrading or chemically etching (“pickling”) the degreased surfaces.

Equipment maintenance

• All tools should be cleaned with hot water and soap before adhesives residues have had time to cure.
• The removal of cured residues is a difficult and time-consuming operation.
• If solvents such as MEK are used for cleaning, operatives should take the appropriate precautions and, in addition, avoid skin and eye contact.

Pretreatment

The strength and durability of a bonded joint are dependent on proper pretreatment of the surfaces to be bonded; however acrylic adhesives can be used effectively with little surface preparation. Ideally joint surfaces should be cleaned with a good degreasing agent such as acetone, iso-propanol (for plastics) or other proprietary degreasing agents in order to remove all traces of oil, grease and dirt. Low grade alcohol, gasoline (petrol) or paint thinners should never be used. The strongest and most durable joints are obtained by either mechanically abrading or chemically etching (“pickling”) the degreased surfaces. 

Typical times to minimum shear strength on sandblasted aluminum / contact pressure

Unless otherwise stated, the figures given below were all determined by testing standard specimens made by lapjointing 114 x 25 x 1.6 mm strips. The joint area was 12.5 x 25 mm in each case. The figures were determined with typical production batches using standard testing methods. 
Average lap shear strengths of typical metal-to-metal joints (ISO 4587) (typical average values) Cured for 24 hours at RT and tested at 23°C, metals sandblasted and degreased with acetone. 


Average lap shear strengths of typical plastic-to-plastic joints (ISO 4587) (typical average values)

Cured for 24 hours at RT and tested at 23°C. Plastics abraded and degreased with isopropanol.



(*) : PMMA, PVC, ABS, substrate failure observed.

Tensile Properties (ISO 527) (Typical average values) Cure 7 days at RT and test at 23°C.

Lap shear strength versus temperature (ISO 4587) (typical average values)

Substrates sandblasted and degreased with acetone. Cure: 7 days at RT

Lap shear strength after coating post-cure cycle at 200°C (typical average values)

Cure: 7 days at RT. Test at 23°C. Substrates sandblasted and degreased with acetone.
Aging with a simulated coating post-cure cycle of 20 minutes at 200°C in a oven. Test performed at 23°C


Lap shear strength versus cataplasma aging (typical average values)

Cure: 7 days at RT. Test at 23°C. Substrates sandblasted and degreased with acetone.
Cataplasma aging according to ISO 9142/E2 (x days 70C in soaked cotton / 15 hours -20°C / 24 hours recovery).
Test: at 23°C



Lap shear strength versus immersion in various media (ISO4587) (typical average values)

On aluminum, pretreatment: sandblasting. Cure: 7 days at RT. Tesled al 23°C.
LSS was determined after immersion for 30, 60 days at 90 days at 23°C.

• Cured for 7 days at RT, then Cataplasma aged per ISO 9142/E2 on Aluminum L 165.
• Tested at 73°F.

• Substrates sandblasted and degreased with acetone.
• Cured 7 days at RT.

• Cured 7 days at RT and tested at 23°C.
• Substrates sandblasted and degreased with acetone.
• Ageing with a simulated coating post-cure cycle of 20 minutes at 200°C in an oven.
• Test performed at 23°C

• On Aluminum L165, pretreatment: sandblasting.
• Cure: 7 days at RT. Tested at 23°C.
• LSS was determined after immersion for 30 days at 23C.

• Cured for 7 days at RT and tested at 73°F.
• Substrates sandblasted and degreased with acetone.
• They are typical values only, and do not constitute a product specification.

• Cured for 7 days at RT and tested at 73°F.
• Substrates abraded and degreased with isopropanol.
• 

• ARALDITE® 2080-05 A/B may be stored during 24 months at 2 - 8°C provided the components are stored in the original sealed containers.
• The expiry date is indicated on the packaging. The product may be placed at room temperature before use, the total time at room temperature should not exceed 9 months.
• Long term exposure above 25°C will reduce the shelf life of the product.

• ARALDITE® 2080-05 Structural Adhesive should be stored in a dry place, in the original sealed containers, at temperatures between 2°C and 8°C (36°F and 46°F).
• Under these storage conditions, the product has a shelf life of 24 months (from date of manufacture).
• The product should not be exposed to direct sunlight.
• The product may be placed at room temperature before use, but the total time at room temperature should not exceed 9 months.
• Long term exposure above 25°C (77°F) will reduce the shelf life of the product.