Alfisatin – products
for a decorative, pickled satin finish (E6)
What can Alfisatin products do for you?
Alfisatin products are used in combination with sodium hydroxide to achieve a decorative pickled surface on aluminium. The higher the aluminium content, the matter the surface will appear - and the better material irregularities can be concealed. It goes without saying that the decorative E6 satin finish generated in this way is facilitated by a process that is both simple and safe. Excessive pickling foam would cause just as much trouble as poor draining behaviour on the products loaded as this makes the downstream rinsing process more difficult, and an unnecessarily large amount of pickling solution is lost. Besides this, a decorative finish on special alloys is a frequent requirement. The wide range of Alfisatin products available will enable you to rise to such challenges. Why not put us to the test!
Advantages:
Liquid, thus ideal for automatic dosing; analysable
The product to be pickled has optimal draining properties as a result of low viscosity in the bath
Pickling foam is reduced to an absolute minimum - no more overflowing pickling baths
A decorative pickled satin finish (E6) is achieved, determined by the aluminium content
Outstanding stabilisation of dissolved aluminium; an Al content of more than 200 g/l is possible
Pickling solution drains off fast enabling a higher aluminium content in the bath (= very matt finish)
Unwanted tramp metals (alloy constituents) are effectively removed
Pickling solutions can later be reused as recyclable material, e.g. for phosphate precipitation
Which Alfisatin pickling additive for which application?
Additive
Alfisatin 338
Alfisatin 339/1
Alfisatin 339/4
Alfisatin 339/6
Alfisatin 357
Alfisatin 358/1
Application
Standard product , for simple pickling applications, Al content up to 150 g/l
Standard product, Al content over 140 g/l,
for normal alloys
Over 140 g/l Al, for maximum loads of goods with standard alloys
Over 140 g/l Al, for maximum loads of
goods with low-alloyed aluminium
Over 140 g/l Al, effective removal of alloy constituents
Over 140 g/l, for maximum loads of goods with special alloys
Specifics
For surfaces that are not so highly satinised
Optimised for preserving pickling solutions
Extremely low-foaming, optimised for preserving pickling solutions
Extremely low-foaming, optimised for preserving pickling solutions
For special alloys, optimised for preserving pickling solutions
Extremely low-foaming
Typical pickling parameters for achieving a decorative satin finish
Example - Alfisatin 339/4 – for maximum product loads with standard alloys:
50 - 80 g/l
Min. 22 points
160 ~ 200 g/l
Bath temperature
Pickling time
Removal by pickling
sodium hydroxide
Alfisatin 339/4
aluminium
60 – 70 °C
10 – 20 min. depending on alloy and degree of matting
70 – 80 g/m² *12 Min.