Many materials react with oxygen to form a chemical compound that is a combination of that material and oxygen. When iron combines with oxygen, it forms iron oxide, or rust. Iron oxide is a larger molecule than iron, so if iron oxidizes, it often puffs up and may even flake. This is because the rust requires more physical space than the original iron.

Some things cause steel or iron to rust faster than others. Water will cause iron and steel to rust. Dissimilar metals rust faster than single metals because of electrochemical reactions, so steel rusts faster than iron, and joints between dissimilar metals rust very quickly. Salt water will cause rust faster than water because salt water is a better electrical conductor. Like most chemical reactions, heat also speeds rust.

If steel starts to rust, it will puff up because iron oxide is a larger molecule than iron. The puffing causes cracks and voids, which expose more bare metal to the environment. So the rusting of iron can progress and is only limited by destruction of all solid iron. Other metals oxidize, but the oxides of some other metals are no larger than the metal themselves, so they don't puff up or flake. For example, aluminum doesn't puff up when it oxidizes.  Rust is really Fe2O3, a reddish form of iron oxide.    

 

Many people say that rust lives and that you have to kill rust to stop metal from continuing to rust. The real significance is that once rust is formed, there is mobile oxygen in the metal, and the oxygen can move deeper into the metal causing further rust .

The best way to remove and prevent rust is that dissolving rust or converting rust into black oxide and then coating the metal with something that inhibits the formation of more rust.

 

Mr. Expert Rust Enemy

 

 

  
                                   




          

Description  : Mr. Expert Rust Enemy is new generation rust removing sand preventing chemical based on low ph chemicals and zinc compounds.

Mr. Expert Rust Enemy converts rust in black color ferric phosphate which can be removed easily.

 

Salient features

• Ready to use
• safe to handle
• Removes rust fast
• Lead free
• Fine salt resistant
• Ideal for ferrous and non ferrous metals
• Very effective
• Economical
• Fine rust prevention properties

Application: Apply Mr.Expert Rust Enemy by brush/swab/spray on rusted part,tools,machinery. Let it for 2-5 minutes.Rub it by brush/cloth and clean.

For large size item/part soak the item in Mr.Expert Rust Enemy for 5-1o minutes. Then clean the same.

Repeat the procedure if required.

The rust removed surface may coated,painted further for ongoing rust formation.

 

Specifications

state                           Liquid with typical acid odor

Ph                               3

Boiling point                  160 C

 

Packing                        1 ltr,5 ltr,10 ltr,20 ltr,210 ltr 

 

Precautions : Keep out of reach of children. Avoid direct skin contact.If,indigested, call doctor immidiately.

 

 

 

GAYO RE    (PAINT REMOVER)

 

 

                                  

 

The principle of paint removers is penetration of the paint film by the molecules of the active ingredient, causing its swelling; this volume increase causes internal strains, which, together with the weakening of the layer's adhesion to the underlying surface, leads to separation of the layer of the paint from the substrate.

 

Mr.Expert Gayo Re is high performance paint removers which removes paint,coatings from wall,construction,wood,metal,steel etc.

 

It is vailable in various packings.

 

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