Adding as little as 500 ul at once will result in uneven solution, which is not usable any more. Mix for another 15 min. Mix for another 30 min. Aliquot the araldite in 10-20 ml disposable syringe. Mix CY 212, HY 964, and DY 964 in this order.
Araldite monomer is harmful.
Use gloves while handling. Wipe out with acetone in case of an accident. After use, wipe the glass cup and mixing rotor with acetone and keep them at 63 C over night until remaining araldite become polymerized.