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Acid Etch Sequence

S o a k e l C a n r e A d i c c t E h L o w C a u c i t s e t S p

l A
Caustic Etch Sequence
Machining

S o a k e l C a n r e C a u c i t s c t E h D e s m t u

Pretreatment sequences for anodizing aluminum.

the aluminum will enter the pretreatment process. Soak cleaners can be emulsifying or non-emulsifying depending
The most popular pretreatment sequences for anodizing alumi- on the product. Emulsifying cleaners will keep the removed oils in
num are shown above. solution as a colloid while non-emulsifying cleaners do not
The primary step for both sequences is an immersion cleaner, or disperse the oils in solution and as a result the removed oils will
soak cleaner. The soak cleaner is intended to remove any soils on the split out of the solution.
surface of the part introduced through manufacturing or transport. Emulsifying cleaners are great when parts are not overly soiled
The most popular soak cleaners are high detergency, mildly alkaline and when there is no oil skimmer available. These cleaners are easy
solutions. These cleaners ensure that the aluminum surface is not to use; however, their longevity is rooted in the amount of oil they
etched while removing oils from the surface of the part. remove. Once an emulsifying cleaner is saturated with oil, the

THERMA-TRON-X, INC.

Industrial Turn-key

Powder Coating Systems

At TTX, we fabricate equipment in

our plant as complete as it can be
shipped, already wired, piped, and
tested.

System Options Include:
• TTX ACC®
• SST®
• Monorail
• Programmable Hoist
• Power and Free
• Custom Combinations

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