Summer training project report at kansai nerolac paints....

1. PRESENTATION ON SUMMER TRAINING
AT
KANSAI NEROLAC PAINTS LIMITED
ON
MANUFACTURING OF PAINTS AND RESINS
PRESENTED BY:
HIMANSHU YADAV
12001005016

2. INTRODUCTION
• Paint is any liquid, liquefiable, or mastic composition which after
application to a substrate in a thin layer is converted to an opaque
solid film.
• Paint is used to protect, preserve, decorate, or add functionality to an
object or surface by covering it with a pigmented coating.
• An example of protection is to retard corrosion of metal. An example
of decoration is to add festive trim to a room's interior.

3. TYPES/CLASSIFICATION OF PAINT
• Enamel
• Gen Industrial
• HPC
• Cement Plus
• Emulsion
• Distemper
• Automotive
• Marine Paints
• Powder Coatings
50
40
30
20
10
0
Product Share
%Prod…

4. COMPOSITION OF PAINT
• Pigments :- Pigments provide the paint its color and finish.
Apart from this , it also protect the surface underneath from
corrosion and weathering as well as helping to hold the paint
together
• Binders :- The binder exists to hold the pigment to the surface.
The binder is a polymeric substance, and is either dissolved in
the paint or suspended in it by emulsifiers such as drying oils,
alkyd resins, epoxy resins etc.
• Solvent :- A solvent is nothing more then a medium in which
binder is soluble and the binder should not be so much
soluble in solvent that it won’t polymerize.
• Additives :- An additive is a compound which provides
additional properties to the paint such as resistance to

5. EQUIPMENTS/MACHINES USED IN PAINT INDUSTRY
• Premixer :- In premixers raw materials are mixed in an early stage in
the manufacturing and distribution process.
• Sand Mill :- Sand mill is used for grinding purposes and also for
proper blending/mixing of pigments and solvent, raisin. Apart from
paint industry, sand mill is also used in Inks, Pigments, Foodstuff,
Dyestuffs, Cosmetic, Electric industry...etc. mid-viscosity liquid
grinding.
• Ball Mill :- A ball mill is a type of grinder used to grind materials into
extremely fine powder for use in mineral dressing processes, paints,
pyrotechnics, ceramics and selective laser sintering.
• Cartridge Filtration :- Cartridge filtration is a type of sediments
filters, which is to say it reduce the amount of sediments transported

6. FLOW SHEET OF PAINT PRODUCTION

7. RESIN MANUFACTURING
• Resin are used in paints to provide the adhesion of paint film to the substrate.
Selection of resin for different paints depend upon type of substrate, type of use,
type of application and properties requirement.
Types of Resin :-
• Acrylic Resin.
• Melamine Formaldehyde Resin.
• Alkyd Resin.
• Polyester Resin.

8. MELAMINE FORMALDEHYDE RESIN
• Melamine resin is the reaction
product of urea or melamine with
formaldehyde undergo
etherification reaction with
butanol.
• Melamine formaldehyde is a hard,
thermosetting plastic material
made from melamine and
formaldehyde by polymerization.
In its butylated form, it is
dissolved in n-butanol and
xylene. It is then used to cross-link
with alkyd, epoxy, acrylic,
and polyester resins, used in
surface coatings. There are many

9. ACRYLIC RESIN
• Acrylic resin is forms by addition
polymerization between the
reacted molecules
• Acrylic resins are a group of related
thermoplastic or thermosetting
plastic substances derived from
acrylic acid, methacrylic acid or
other related compounds.

10. QUALITY CONTROL DEPT.
• Paint manufacturers utilize an extensive array of quality control
measures. The ingredients and the manufacturing process undergo
stringent tests, and the finished product is checked to insurethat it
is of high quality.

11. TESTS PERFORMED IN QUALITY CONTROL LAB
• HG :- A Hegman gauge, sometimes referred to as a grind gauge or
grindometer, is a device used to determine how finely ground the
particles of pigment (or other solid) dispersed in a sample of paint (or
other liquid) are.
• ER :- ER means electrical resistance. It is useful in finding out the
electrical resistance of paint. It is found out by help of millimeters and a
ER measuring device.
• DFT TESTER :- DFT tester is used to find out whether the thickness of
paint coating is accurate and uniform all over the panel/automotive
body.
• Hardness test:- Hardness test is used to find out whether the paint is
hard enough to resist all the scratches and dents and it does not get

12. PAINT DEFECTS
• Sagging :- Incorrect spraying viscosity, spraying technique,
flash-off times between coats, and film thickness.
• Solvent Popping :- Insufficient drying of primer filler in corners,
edges, rebates and below decorative strips.
• Matting/Gloss :- Film thickness or air humidity too high or
substrate too sensitive to solvents
• Poor Opacity :- Substrate not uniform (Effect finishes) or top
coat film build too low or coating over thinned