ARADUR® 140-3

Systems based on, for example, Araldite GY 720 and Aradur 140-3 make it possible to formulate heat-resistant epoxy resin mortars. In combination with solid epoxy resins or their solutions for cold-curing, solvent-containing lacquers featuring adequate working times, non-tacky films after the pre-reaction, very high degrees of adhesion and flexibility along with good anti-corrosion protection. Reactivity increases throughout the Aradur 115-3, 125-3 and 140-3 hardeners. The degree of sensitivity to high atmospheric humidity increases in proportion with the amine content.

Mainly with liquid epoxy resins such as Araldite GY 250, GY 720, GY 783 for solvent-free or heavy-filled mastics, epoxy resin mortars or reaction adhesives. For application to steel or mineral substrates. When used with liquid or (preferably) solid epoxy resins or their solutions, such as Araldite GZ 7071 X 75, for the formulation of cold-curing, solvent-containing coatings. Main applications in the construction industry, but also in ship-building and for anti-corrosion protection.

The optimum mix ratio of Araldite GY 250 and Aradur 140-3 is 100:50 parts by weight. The mix ratio of Araldite GZ 7071 X 75 to Aradur 140-3 should be selected as 100:18 parts by weight. Deviations from this of up to 10% are acceptable. In such cases a higher proportion of hardener provides increased flexibility and adhesion, while improved chemical resistance is achieved with a reduced proportion of hardener.

Aradur 140-3 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