airfin® is lacquered foil to be used for the production of fins for heat exchangers with a high corrosion resistance.
airfin® is an excellent solution of coating against corrosion of the fin. Epoxy resins based on highly specific to this application, airfin® provides the desired protection in a wide range of colours.
Its advantages are:
ALUCOAT supplies its product airfin® in reels of wide until 1.600 mm, with core of steel or carboard up to 500 mm and maximum weight of 6 tonnes. The lacquered aluminim coils airfin® are ideal for developing different applications:
Product description: Aluminium foil from 100 to 300 μm with epoxy based lacquer, PU based lacquer, or EPPU double layer for both sides.
|PROPERTY||METHOD||airfin® 100||airfin® 300||airfin® 400||airfin® 500|
|Colors||gold, grey, black||blue, grey||gold, grey||gold, black|
|Wettability||UNE EN 546-4||E||E||E||E|
|Bending||ECCA 7 (0 ≤ T BEND ≤ 1)||O.K.||O.K.||O.K.||O.K.|
|Drawing||ECCA T6-ISO 1520 (5mm)||O.K.||O.K.||O.K.||O.K.|
|Curing||Resistance to MEK||> 50 d.f.||> 50 d.f.||> 50 d.f.||> 50 d.f.|
|Heat resistance||200ºC/5 min.||O.K.||O.K.||O.K.||O.K.|
|Solvent resistance||TRICHLOROETHYLENE (85ºC/5 min.)||Weight loss < 1%||PWeight loss < 1%||Weight loss < 1%||Weight loss < 1%|
|PERCHLOROETHYLENE (120ºC/30 min.)||Weight loss < 1%||Weight loss < 1%||Weight loss < 1%||Weight loss < 1%|
|Corrosion resistance (Neutral salt spray)||ASTM B117 (NaCl 5%/35ºC)||Up to 1000 h (According to specification)||Up to 1000 h (According to specification)||Up to 1000 h (According to specificationn||> 1.000 h.|
|Kesternich Test Resistance||ISO 3231 (0.2 l SO2)||Up to 15 cycles (According to specification)||Up to 15 cycles (According to specification)||Up to 15 cycles (According to specification)||> 15 cycles|
|Humidity test||DIN 50017 / 1000 h||No modification, no corrosion||No modification, no corrosion||No modification, no corrosion||No modification, no corrosion|
|U.V. Resistance||ASTM G154 (500 h.;UV-313 4h. 60ºC / Condensation 4h. 40ºC)||–||O.K.||O.K.||O.K.|
Recommended alloys: EN AW 8011A, EN AW 8006, EN AW 1100 (according to European Standards (EN 573-3)). Customer can specifiy its needs in order to choose the best thickness, alloy and temper of the metal.
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