1. English Indian Clays Ltd Kaolin as High Performance Extender Pigment for Coatings S.V.Kamalesh

3. Extender Pigments Functional Properties in Coatings The choice of extenders in Paints are influenced by the following considerations 1. Aesthetic Properties - Control Gloss, Sheen, Matt , Enhance Opacity, Brightness, Provide texture &smoothness 2. Processing & Wet Paint - Ease of Dispersion, Viscosity, Flow and Levelling, Sedimentation / settling properties 3.Mechanical & Physical - Hardness, Impact Resistance, Film Reinforcement, Porosity, Cracking and Checking resistance 4. Performance& ressistance - Abrasion, Burnishing and Scrub resistance, properties Permeability, Corrossion & Chemical and Electrical property insulation and conductivity 5. Other factor - Cost control

7. SEM of Hydrous kaolin

8. TEM kaolinite

15. Delaminated kaolin Non delaminated Partially delaminated Fully delaminated

16. Advantage of Delaminated Kaolin in paint EICL delaminated clay DLC 90 offer the following advantage in coatings Improved Opacity and Gloss Improved Tinting strength Better Washability Improved Enamel hold out Controlled penetration of water/ vapour with improved barrier resistance

19. Calcined Kaolin The Optical properties of Kaolin are enhanced by the calcination process The enhancement of optical properties of the Kaolin by the calcination process gives the opportunity to rationalises the TiO2 content in the paint formulation using calcined kaolin

21. Fine grade Calcined clay Himafine Titaniumdioxide is one among the major pigments consumed in the paint industry Paint formulators have always worked at different ways to optimise TiO2 content without deterioration in final paint properties EICl has brought out the ultra fine grade calcined clay Himafine that is designed to reduce more TiO2 content and bring down the cost of water based formulation

24. NEW PRODUCTS UNDER DEVELOPMENT

27. 1. Silica Coated Clay - Silstar

29. Diagrammatic representation of silica coating

30. CORE CLAY SILSTAR

34. 2. Surface Modified Clays

41. 3. Nano kaolin

42. Nano Technology Nanotechnology deals with the the fact that properties of materials can change drastically when the size fall below approximately 100 nanometer at least in one dimesion Nanoscale material have already found application in several areas in industry and they are very promising for coating application Nano particle can improve the properties of coating system in several ways Nano is one thousandth of a micron Particles with below 100nm in any one dimesion is reffered as nano materi al

47. t = > 100 nm t = < 100 nm D 50 = < 100 nm; t = 40-60 nm Chemically modified surface Nanokaolin- the Concept.................... d = > 500 nm d ≤ 500 nm

48. Nano Kaolin 100 nm

50. Kaolin variants usage in coatings Regular grade Kaolin - Water base Paint - Distemper, Emulsion Solvent base Paint - Primer,Under coat Premium grade Kaolin - Solvent base Paint - Enamel Specialty grade Kaolin - Industrial Automotive Electro deposition primer, Surface coated Kaolin - Exterior Emulsion paint Surface modified Kaolin - High performance protective coating Nano Kaolin - Industrial High performance protective clear coating Calcined Kaolin - Interior / Exterior Emulsion paint

51. Concluding... Kaolin is a versatile extender pigment,which apart from giving good performance in paint films ,also gives ample opportunity for value addition by physical , structural and chemical modification with enhanced performance in paints. EICL will continue to work with paint formulators , evolving such innovative product ideas for the benefit of the paint industry

52. Thank You all