Paint Technology

SRICT Paint Technology Certificate Course

(Course Coordinator: Nilesh Badgujar)
Dept.: Dyes & Pigments Technology

About the course

This certificate course is helpful for Chemical Technology & Chemical Engg. Students and employee from pigment and Paint industries. It gives technical knowledge of application of pigments in Paint sector.

The syllabus includes composition of paint, Manufacturing of paint, special purpose coatings, application technique and paint defects etc. This course will be beneficial for our students to get placement in Paint industries as well.

Course prerequisites and exemptions

Due to the level of technical content, the general requirement is

  • B. E./ B. Tech.Third year onwards Chemical Technology/Chemical Engineering students.
  • Diploma in surface coating/Polymer Technology/Chemical Engineering or equivalent qualification students.
  • B. Sc./ M. Sc. with Organic Chemistry

Resources

Lesson content is provided via notes, CD ROMs. In addition, it is strongly recommended that participants also purchase the reference texts:

  • Outline of Paint Technology by Morgan. [Publisher: J. Wiley; 2nd Edition (1982)]
  • Paint and surface coatings (Lambourne and Strivens) [Publisher: Woodhead, 2nd Edition (1999)]

Teaching

Classroom and Laboratory

Assessment

Formal assessment will be by written exams and through practical exams.

The Examination will be conducted after completion of the course. The successful students will be awarded the certificate of course completion.

Course Fee, enrolment and payment

The course fee is Rs. 15.000/- + GST
DD/Cheque payment is accepted in the name of “Ankleshwar Rotary Education Society,”

Terms and conditions

Full course fee must be paid at the time of registrations.

Course Syllabus: Total hrs.(70)
Section - I

Unit I: Introduction to Paint (4)

Overview and present status of Architectural, Industrial, OEM and Special Purpose Surface Coating Industry; Elaboration of terms such as Paints, Varnishes, Lacquers, Powder Coatings, Printing Inks etc. Introduction, General classification of paints, Constituents of paints and their role/functions, PVC and CPVC, Salient features/ desirable requirements of sealers, primers, stoppers, fillers, undercoats, topcoats for different surfaces.

Unit II Binders/Polymeric resin (4)

Introduction to Binder, Classification of Binders with examples, Properties and applications of thermosetting binders in surface coatings, characterization of Binders.

Unit III: Pigments (4)

Introduction to Pigments, Classification of inorganic and organic pigments with examples, Concept of Colour and chemical constitution, General properties and applications of pigments.

Unit IV: Solvents (4)

Introduction to solvents, Concept of Solubility parameter, Physical and Chemical Properties of Solvents, Toxicology of solvents

Unit V: Additives(4)

Introduction to additives, Wetting and Dispersing Additives, Antisettling agents, Rheology Additives, Defoamers, Antiskinning agents, Corrosion Inhibitors etc.

Section - II

Unit- I: Paint Formulations: (5)

Concept of Pigmented Dispersion, Dispersion Machineries (Ball Mill, Bead Mill, Dispermat, Probe Ultra-sonicator etc) Processing operation Mill Base & Let down Calculations, Basics of Paint formulations.

Unit-II: Classification & Types of Paints:(5)

Architectural coatings (house paints), Industrial coatings, Powder Coatings, Waterborne coatings, Special Purpose coatings

Unit-II Surface preparation, Paint Applications Techniques & Paint Defects(5)

Introduction of various surface preparation steps, Techniques of Paint application like Spray painting, Conventional air spraying, Airless spray, Direct roll Coating, Electrostatic spraying, Paint Defects

Unit-III Testing & Quality Control:(5)

1. Package properties: Package tests include viscosity, weight per gallon, flash point, freeze-thaw stability, and fineness of grind.
2. Application properties: Application properties include ease of brushing, spraying, or rolling, levelling and drying time.
3. Film appearance: Film appearance tests include gloss, colour, opacity, colour acceptance, and colour development.
4. Film performance: Film resistance tests are for hardness, abrasion, adhesion, flexibility, impact, chemical and water resistance.
5. Durability: Durability tests include weatherometer, salt, spray, humidity, and exterior exposure.

Section-III

Laboratory Experiments: (30)

Testing of Paint Raw Materials & Formulation of Paints.

I) Testing of Resin:

  • To determine the colour measurement of given resin.
  • To determine the viscosity of given resin.
  • To determine the specific gravity of given resin.
  • To determine the acid value of given resin.
  • To determine the saponification value of given resin.

II) Testing of Pigment:

  • Identification of given pigments.
  • To determine the oil absorption value of given pigment.
  • To determine the bleeding tendency value of given pigment.
  • To determine the moisture content of given pigment.
  • To determine the bulk density of given pigment.

III) Formulation of Paints:

  • Introduction of Paint manufacturing machineries.
  • Formulation of Primer in Ball mill.
  • Formulation of Undercoat in Bead mill.
  • Formulation of Topcoat in Bead mill.
  • Formulation of Pigment Tinters.

Course Outcomes:

  • To learn the basic ingredients required for paint formulation.
  • The ability to understand the various factors to affect the stability of the paint.
  • Students should be decided in the situation, and to decide the dosage of various additives in coating formulation.
  • In order to decide the basic criteria for the coating formulation.
  • Basic knowledge of design paint formulation considering various ingredients.
  • The ability to use different machinery and equipment in the laboratory and used on a commercial scale to handle.

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