What are 4 ways of preventing rust?

Answer 1

A coat of weather resistant varnish, paint, zinc tin or chrome plating will help keep the metal in question from rust causing air and moisture. You may also keep a packet of silica gel to absorb rust causing humidity. You may also go for a material that does not corrode, such as plastic or stainless steel

Answer 2

PreventionRust is permeable to air and water, therefore the interior iron continues to corrode. Rust prevention thus requires coatings that preclude rust formation. Stainless steel forms a passivation layer of chromium(III) oxide. Similar passivation behavior occurs with magnesium, titanium, zinc, zinc oxides, aluminium, polyaniline, and other electroactive conductive polymers. GalvanizationAn important approach to rust prevention entails galvanization, which typically consists of an application, on the object to be protected, of a layer of zinc by either hot-dip galvanizing or electroplating. Zinc is traditionally used because it is cheap, adheres well to steel, and provides a cathodic protection to the steel surface in case of damage of the Zinc layer. In more corrosive environments (such as salt water), cadmium is preferred. Galvanization often fails at seams, holes, and joints where the coating is pierced. In these cases, the coating provides cathodic protection to metal, where it acts as a galvanic anode rusting in preference. More modern coatings add aluminium to the coating as zinc-alume; aluminium will migrate to cover scratches and thus provide protection for longer. These approaches rely on the aluminium and zinc oxides protecting the once-scratched surface rather than oxidizing as a sacrificial anode. In some cases, very aggressive environments or long design life, both zinc and a coating are applied to provide corrosion protection. Cathodic protectionCathodic protection is a technique used to inhibit corrosion on buried or immersed structures by supplying an electrical charge that suppresses the electro-chemical reaction. If correctly applied, corrosion can be stopped completely. In its simplest form, it is achieved by attaching a sacrificial anode, thereby making the iron or steel the cathode in the cell formed. The sacrificial anode must be made from something with a more negative electrode potential than the iron or steel, commonly zinc, aluminium, or magnesium. Coatings and painting

Flaking paint, exposing a patch of surface rust on sheet-metal

Rust formation can be controlled with coatings, such as paint, that isolate the iron from the environment. Large structures with enclosed box sections, such as ships and modern automobiles, often have a wax-based product (technically a "slushing oil") injected into these sections (see Rustproofing). Such treatments also contain rust inhibitors. Covering steel with concrete can provide some protection to steel by the high pH environment at the steel-concrete interface. However rusting of steel in concrete can still be a problem.

Plating

Rusting can completely degrade iron. Note the galvanization on the unrusted portions.

• Zinc plating (galvanized iron/steel): iron or steel coated with zinc metal layer. Hot-dipped method or zinc-blasting method may be used.
• Tin plating: mild steel sheet coated with a tin layer.
• Chrome plating: wherein a thin layer of chromium is electrolytically applied to the steel, providing both rust protection and a highly polished, bright appearance. Often used on the silver-coloured components of bicycles, motorbikes, and automobiles.

BluingBluing is a technique that can provide limited resistance to rusting for small steel items, such as firearms; for it to be successful, water-displacing oil is rubbed onto the blued steel. HumidityRust can be avoided by controlling the moisture in the atmosphere. An example of this is the use of silica gel. InhibitorsCorrosion inhibitors, like gas-phase or volatile inhibitors, can be used to prevent corrosion in closed systems.

Answer 3

• Painting, oiling, coating with wax or something else to stop oxygen from reaching the metal
• Coating with zinc, if done electrically it is also known as galvanizing
• Plating with other metals such as copper followed by nickel or chromium
• Keeping the metal dry

hope this helps!!

Answer 4

They include: greasing, oiling and painting. Galvanizing is also a method of rust prevention, whereby the iron or steel object is coated in a thin layer of zinc.

Answer 5

The three ways are: Ø Painting Ø Galvanizing Ø Oiling