Skip to main content

Painting of Automobiles

How painting of automobiles and cars is done and which ingredients are used in paint of a car? An automobile is mostly made from steel sheets. When it is exposed to air, the steel tends to produce rust on it. Once rust starts to grow over the steel objects, it becomes difficult to keep the characteristics of steel like its strength and even its original shape. Thus by painting over it, rust is prevented from growing on it and it becomes possible to retain its original characteristics much longer than without being painted.

The paint is a liquid of a high viscosity made up from the various ingredients evenly mixed up. Normally, the paint is used after it is diluted with an appropriate amount of thinner so that it can be easily applied. The ingredients of paint are as follows:

1. Pigments

The pigment is a powder of extremely tiny particles insoluble in water, oil and any other solvent. It gives colour and a filling up effect to the paint.

2. Resins

The resin is a main constituent of paint, together with pigment it forms a paint layer which is normally a sticky transparent liquid. After being painted on an object (automobile) and dry hardened, it becomes a paint layer. The quality of resin affects the finish (luster, brightness), the easiness of work (drying, polishing), and the quality of paint layer (hardness, anti-solution, weather proofing).

3. Solvent

It is a liquid for melting resin to make pigments and resin mix easily. Since various kinds of resins are used in paint, therefore, to dissolve them all, different kinds of solvents must be used.

4. Thinner

The thinner is a mixture of several solvents and is added in paints to optimize its viscosity so that paint can be applied easily. It is made up of several different soluble liquids. The solvents and thinner evaporates as the paint dries and does not remain in the paint layer.

5. Additives

These are added to improve the characteristics and quality of paint and paint layers.

6. Hardener

It is used to make paint film hard. Acrylic urethane paint is mainly used for car paint repair along with isocyanine chemical as hardener.


Popular posts from this blog

Are Engineers Favourite Among Girls?

What do girls think about men who are engineers and what type of engineers are most favourite among girls? A survey was conducted by a team of aboutmech with members chosen from different countries. Each team member carried out a neutral survey in his/ her country to evaluate what females think about most of the engineers from different engineering branches. An overview of different questions asked in survey is given below: Question: Which male engineers do you find more attractive as a husband? Almost 50% women voted for mechanical engineers to be the most attractive husbands among other engineers. So mechanical engineers are most favourite among girls as a husband. They find them more trustworthy, intelligent, and creative. A married women from California said, “If your husband is a mechanical engineer, he will help you in everyday tasks. Because mechanical engineers are good team players and they have creative ideas about everything.” Which male engineers do you find mo

Best CV Format for Mechanical Engineers

Fifty percent engineers fail to grab a dream job because of basic faults in their CVs/ Resume. This article tells you about best CV format for mechanical engineers and how you are supposed to design your CV when applying for jobs. You CV is your first impression on future employer. He/ she does not know you. Your CV is the only representation of your personality. He/ she may select or reject you after first glance on your resume.  I have experienced shortlisting and interviewing candidates for different jobs. I was astonished to learn that most of the candidates simply copy paste each others CVs without any changes at all. These types of CVs are rejected immediately. I am not trying to tell you that you should avoid copying, rather i ma telling you to refrain from giving your CV to your friends. An ideal CV consists of following portions: Name/ Address of the applicant Objective Education Record Employment History Professional Skills Awards & Achievements Co

Engineering Mechanics - Introduction

The Engineering Mechanics is that branch of Engineering-science which deals with the principles of mechanics along with their applications to engineering problems. It is sub-divided into the following two main groups: (a) Statics, and (b) Dynamics The Statics is that branch of Engineering Mechanics which deals with the forces and their effects, while acting upon the bodies at rest. The Dynamics is that branch of Engineering Mechanics which deals with the forces and their effects, while acting upon the bodies in motion. It is further sub-divided into the following two branches: (i) Kinetics, and (ii) Kinematics The Kinetics is that branch of Dynamics, which deals with the bodies in motion due to the application of forces. The Kinematics is that branch of Dynamics which deals with the bodies in motion without taking into account the forces which are responsible for the motion.