Project cost ($):
1 day to prepare, 4 weeks for observation
Table of Contents
Using polymer sealants will help a carís paintwork last longer by providing a protective layer over the paint, preventing damage by various contaminating substances such acid rain.
Using polymer sealants will help a car paint last longer by providing a protective layer over the paint, preventing damage by various substances such as water and acid rain.
Corrosion is actually the process by which the surface of a substance (such as metal) undergoes a chemical reaction with elements in its surrounding. One example, is the process of oxidation - this occurs when metal is placed in the presence of water and oxygen. This is how rust forms. Painting is one of the most common methods used to prevent rust from occurring. However paint itself is vulnerable to damage by industrial and naturally-produced chemicals and therefore additional coatings such as wax or polymer sealants are applied over the paint to protect it. This prevents the paintwork itself from corroding.
The materials required for the experiment:
You should observe that some of the materials used to induce corrosion were very effective in doing so even in the presence of the polymer sealant. Eggs, Clorox and shaving cream are very harmful to paintwork.
The hypothesis is proven to be true.
The paintwork on the metal sheets without the polymer coating began to corrode sooner than those which had coating. Use of polymer sealants on car surfaces do not prevent rust from occurring but only delays the process of corrosion. The protective coating acts as a first line of defense against corrosion-inducing chemicals, by allowing the protective coating to be damaged first before the corrosion is able to reach the surface of the paint.
The protective coating industry for automobile and shipping is very big business. A lot of money is spent in research and development to create new and improved products that provide much better protection under different environments
What would happen if the experiment was performed using other brands of paint.
What if other metals such as zinc or aluminium were used?
How will different types of protective coatings, such as wax affect the results?
What if the metal sheets were exposed to intense ultra violet rays? Or what would be the effect of increasing the room temperature?