RXSOL PASSIVATION is highly conc and acidic product , It does not give Black or Yellow stain marks after washing with water. It simultaneously removes annealing colours, ferritic contamination & weld burns.
Spray is very safe & easy to use for cleaning of large equipments like S.S. vessels, dryers, agitators, dairy machinery, fermentators, internals as well as externals of pipes by pressurised spray bottle or pump. passivation process improve the corrosion resistance of metal parts / surface.
Concentrated up to 20% dilution materials are suitable for use only on stainless steel. While diluted more then 50% is suitable for cleaning aluminum.
Chlorides: are present in many cleaning agents. This entails risk of pitting corrosion of stainless steel. If a cleaner containing chlorine, chlorides, bleaches orhypochlorites is used it must be afterwards promptly and thoroughly cleaned off.
OTHER SUITABLE PRODUCT ::: For VERTICAL surface area.
Passivating Pickling Paste ::: RXSOL-68-6801-005
DENGEROUS FOR ALL BODY PART
NB. Before disposing the passivating fluid it should be neutralized. ( Caustic / Soda ash / slaked lime )
In accordance with the latest E.E.C Council directives
R 34 : Causes burn
S2 : Keep out of reach of children
S 26 : In case of contact with eyes rinse immediately with plenty of wate and seek medical advice
It also helps to detect pinholes after welding.
Why Passivation required ?
1. Stainless Steel owes its corrosion resistance to the formation of a chromium oxide surface layer but this happened due to presence of oxygen , And if the oxide has been stripped, perhaps by pickling, then the oxide layer takes a short time to reach its full thickness and this can be accelerated by passivation.
2. The heat tint produced by welding is not only unsightly but the thicker oxide layer includes chromium from the surface of the metal, lowering its corrosion resistance. Pickling both removes the oxide layer causing the colour tints and a thin layer of the underlying metal to restore the original properties.
3. Iron Contamination
A major cause of corrosion in service is iron contamination which can arise from a variety of sources. These include using tools made of mild or constructional steels like fork lifts being a common cause for abrasives that contain iron and any tool that has previously been used on non stainless steel. Cross contamination can also arise from grindings and debris created whilst working close by on steel, either in the workshop or on site. Iron contamination is not always obvious, if it is suspected it can be detected using the ASTM A380, ferroxyl test. This is a rapid test in which a solution turns blue in the presence of iron. Pickling is a very effective method of removing this iron contamination from the surface.
PASSIVATION LIQUID RX Supplier Oman Muscat Barka Salalah Sohar Ruwi Mutrah Nizwa Al Hamra Manah
Email:- mail@muscatchemical.com
