|SURFACE TREATMENT TECHNOLOGIES|
Acidic Degreasers / Cleaners
Acidic cleaning is commonly preffered for the metal parts aslo need rust removal. Rust, scale and soot cleaning can be made by acidic type degreasers. Iý is suitable to treat various kind of metals such as aluminium, steel, iron...etc.
However acidic degreasing baths can work at ambient temperatures, it is advantagous to work at higher temperatures to have more efficient degreasing and derusting. Acidic degreasing products include surfdactants, emulfifying agents, inhibitors and acids (phosphoric, sulfuric, hydrochloric, hydrofluoric acids). Treating solution has strong acidic nature, hence bath material must be made of stainless steel or PP. It must be avoided to work too high concentration of chemicals.
Treatment bath can be prepared in the range of % 5 - 50 concentration depending on grease / oil on the metal surface. Treating time can prolong up to 1 - 2 hours while working with low concentrations. Important parameters in acidic degreasing baths are total acid and treating time. Reduce in total acid indicates reduce in concentration, at this point chemical addition is needed. Excessive amount of metal wearing is prevented by using of inhibitors. Inhibitors provide raw metal protection after rust and scale removal and prolong bath life. For the treament of aluminium, acid inhibitors are not used because it is a desired thing to have etched surface for subsequent applications.
CLEANOL A 38 - Degreaser / Rust Remover
It is an effective acidic degreasing product including acid mixtres, enulgators, inhibitor and surfactants. Suitable for iron and steel. It can work at room temperature, at higher degrees it is more effective. Degreasing and rust removing can be done at the same time. Use concentration can be in the range of % 10 - 40 according to grease or rusting on the surface. It can be employed between degreasing bath and phosphating bath in phosphte coating lines for rust removal operation after alkaline degreasing.
CLEANOL ALK 20 T - Acidic Degreaser
It is an immersion type acidic degreaser for aluminium surfaces prior to chromate coating. It can work at room temperature, at higher degrees it is more effective. It provides a proper degreasing alongwith a light etching on the surface which prepares the surface for following chromate coating operation. Treatment is made under conditions of % 3 - 5 chemical concentration, 20 - 50 °C degree temperature and 2 - 10 minutes of treating time.
CLEANOL ALK 90 T - Acidic Degreaser
CLEANOL ALK 90 T is an acidic degreaser for aluminium surfaces prior to chromate coating working at ambient temperatures. Beside a good degreasing, it makes a light etching on the surface which prepares the surface for subsequent chromating operation. Treatment is made under following conditions; % 3 - 5 chemical concentration, 20 - 50 °C degree temperature and 2 - 7 minutes of treating time.
CLEANOL A 18 - Rust Remover
It is a acidic degreasing / rust - scale remover product for iron and steel applied by dipping. Including inhibitors prevent excessive raw metal and provide long lasting working ability. It is especially effective in scale and carbon soot removal.
CLEANOL ETC - Aluminium Degreaser
CLEANOL ETC is an immersion type acidic degreaser for the treatment of aluminium working at room temperatures. Beside degreasing, it has a good etching on the surface which is considered as pre-conditioning before chromating.
CLEANOL A 28 - Degreaser / Rust Cleaner
It is a degreaser - rust remover product applied by dipping or brushing working at ambient temperature. Chemical concentration can vary in the range of % 10 - 20 depending on grease or rusting on the surface. At higher working temperatures it makes more effective cleaning.
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