ARADUR® 125-3

In combination with solid epoxy resins or their solutions for cold-curing, solvent-containing coatings, presenting the following features:

• Long working times
• Non-tacky films after pre-reaction
• Very good adhesion and flexibility
• Very high degree of anti-corrosion protection

Reactivity increases throughout the Aradur 115-3, 125-3, 140-3 hardeners. The degree of sensitivity to high atmospheric humidity increases in proportion with the amine content.

In combination with liquid or (preferably) solid epoxy resins or their solutions, such as Araldite® GZ 7071 X 75, Aradur 125-3 is suitable for the formulation of cold-curing, solvent containing coatings, for application to steel and mineral substrates. Its main areas of application are in ship-building, anti-corrosion protection and the construction industry. When used along with liquid epoxy resins such as Araldite GY 250, GY 720, GY 783, it is possible to formulate mastics and reaction adhesives with large proportions of solids.

The mix ratio of Araldite GZ 7071 X 75 to Aradur 125-3 should be selected as 100:25 parts by weight.The mix ratio of Araldite GY 250 to Aradur 125-3 should be selected as 100:65 parts by weight.Deviations from this of up to 15% are acceptable. In such cases a higher proportion of Aradur provides increased flexibility and adhesion, while improved chemical resistance is achieved with a reduced proportion of Aradur.

Aradur 125-3 should be stored in a dry place, preferably in the sealed original container, at temperatures between 2 and 40°C. The product should not be stored exposed to direct sunlight. Keep this product from heat or ignition sources.  Shelf life (at storage temperature between 2 - 40°C) (see expiry date on original container) several years