ARADUR® 140-2

Systems based on, for example, Araldite PY 720 and Aradur 140-2 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 pre- reaction, very high degree of adhesion and flexibility along with good corrosion protection.

Mainly with liquid epoxy resins such as Araldite GY 250, PY 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 corrosion protection.

The optimum mix ratio of Araldite GY 250 and Aradur 140-2 is 100:50 parts by weight. For increased flexibility and therefore increased bond strength in adhesives, mix ratios of 100 parts of resin to 100 parts of Aradur 140-2 are possible but result in clear decrease in thermal stability – further testing of formulation strongly recommended.The mix ratio of Araldite GZ 7071 X 75 to Aradur 140-2 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® 140-2 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.  Shelf life (at storage temperature between 2 - 40 °C) (see expiry date on original container) - several years