Pretreatments and Surface coatings and paints on different substrates like civil works like walls, floors, ferrous and non-ferrous metals, plastics, wood etc.
Plasticizers: Definition: Plasticizers are additives used to increase the plasticity or fluidity of a material. They are commonly incorporated into polymers to make them softer, more flexible, and easier to handle. Function: Plasticizers work by embedding themselves between the chains of polymers, spacing them apart and thus increasing their mobility. This process reduces intermolecular forces…
Surfactants, or surface-active agents, are compounds that lower the surface tension between two liquids, between a gas and a liquid, or between a liquid and a solid. They contain both hydrophobic (water-repellent) and hydrophilic (water-attracting) groups, allowing them to interact with both water and oils or fats. Types of Surfactants: Applications of Surfactants: Surfactants play…
Article by Dr E. Ramanathan When we talk about quality of a product or a service from client’s perspective, we bluntly believe branded products or services, fake advertisments in social media, TV shows, newspapers, movies, magazines, etc. We assume falsely that anything Global is great in quality. We just think big about big advertisements and…
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by Dr E. Ramanathan MIL specification [9] classifies the types of chemical conversion phosphate coatings as M-type for manganese base and Z-type for zinc base. Besides, various combinations of chemical conversion coatings have been reported, viz., coatings based on zinc phosphate, manganese phosphate, amorphous iron phosphate, calcium modified zinc phosphate, low zinc manganese phosphate, zinc…
by Dr E. Ramanathan A metal surface should be free from crevice, pitting, galvanic and creeping corrosions, scales, tool marks, oil, grease and dirt in any form prior to chemical conversion coating. There are different types of corrosion viz., crevice, pitting, galvanic and cosmetic corrosions. Crevice corrosion is caused by stagnant electrolyte trapped in silent…
Dr E. Ramanathan PhDConsultant, Nanocoatings and Paints43, Arthi Flats, Haridoss Main Road,Kolathur, Chennai – 600 099.Email: eramanath@gmail.comMobile: +91 9444929163www.saitechinfo.com Dr E. Ramanathan is a Nano Coating consultant and Corporate Trainer with more than 37 years of managerial, research and production experience. He provides corporate training to industries, project support to young entrepreneurs and academic training…
Diploma in Paint Technology – Join Today!One Year Course Conducted by Saitech Informatics under the guidelines of Dr E. Ramanathan Visit: https://saitechinfo.com/diploma-in-paint-technology/ The best quality paint applied on the worst substrate is worse than the normal paint applied on the substrate with a clean surface. Surface preparation of a metal is the primary step to…
Selected List of Publications by Dr E. Ramanathan 1. Nano-Zirconia Coating on Mild Steel with the Top Coats of Polyester Epoxy Powder and Amide Cured Epoxy Liquid Paints, E. Ramanathan, S. Balasubramanian, Prog. Org. Coat. 2016, 93, 68-76. http://dx.doi.org/10.1016/j.porgcoat.2016.01.007 2. Synthesis and characterization of hexafluorozirconic acid and its coating application on mild steel, E. Ramanathan,…
By Dr E. Ramanathan, Paint Consultant Chemistry of Corrosion Corrosion is a natural process that involves the deterioration of materials, typically metals, due to chemical reactions with their environment. The theory of corrosion is essential for understanding and preventing this phenomenon. Several theories and mechanisms explain the corrosion process, with the most widely accepted ones…
When manufacturing acrylic emulsion paint, the choice of mill is crucial to ensure the proper dispersion of pigments and the stability of the emulsion. Here are the suitable mills for making acrylic emulsion paint: 2. High-Speed Disperser (HSD): 3. Three-Roll Mill: 4. Attritor Mill: 4. Basket Mill: When selecting a mill for acrylic emulsion paint…
Aerosol spray paints are manufactured through a multi-step process that involves mixing and filling. 1. **Formulation**: This is the first step, which involves mixing pigments, solvents, and resins to create the paint. The pigments provide the color, the solvents make the paint sprayable, and the resins help the paint adhere to the surface. This mixture…
