Application of adhesive

The resin/hardener mix may be applied manually or robotically to the pretreated and dry joint surfaces. Huntsman's

technical support group can assist the user in the selection of an suitable application method as well as suggest a

variety of reputable companies that manufacture and service adhesive dispensing equipment.

A layer of adhesive 0.05 to 0.10 mm thick will normally impart the greatest lap shear strength to the joint. Huntsman

stresses that proper adhesive joint design is also critical for a durable bond. The joint components should be

assembled and secured in a fixed position as soon as the adhesive has been applied.

For more detailed explanations regarding surface preparation and pretreatment, adhesive joint design, and the dual

syringe dispensing system, visit www.araldite2000plus.com.

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 acetone are used for cleaning, operatives should take the appropriate precautions and, in addition,

avoid skin and eye contact.

Times to minimum shear strength (laboratory conditions: 40-60% RH)

Temperature C 10 15 23 40 60 100

Cure time to reach hours 14 8 4

LSS > 1MPa minutes 85 15 < 5

Cure time to reach hours 46 26 10 2.5

LSS > 10MPa minutes 40 8

LSS = Lap shear strength.

Typical cured

properties

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 of aluminium alloy. The joint area was 12.5 x 25 mm in each case.

The figures were determined with typical production batches using standard testing methods. They are provided solely

as technical information and do not constitute a product specification.