How Paint Used To Be Made

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How it’s made Ingredients: Water, latex (for adhesion), titanium dioxide, calcium carbonate, potassium, zinc (for mildew resistance), and whatever additives that particular paint needs. · Water is pumped into a large mixing tank. Thickening and stabilizing agents are added to prevent the ingredients from settling to the bottom of the tank or can. · One at a time, all ingredients except for latex are mixed in. Each ingredient has a specific mixing time. This step is critical for quality. · This liquid is pumped to another large mixing tank that contains the latex. After four to six hours of blending, the paint is ready. · The paint goes through a series of tests testing the thickness and how well the drying agents work. · Latex is added and a colour test is performed to ensure the proper shade. · Another test is done to see how well the paint covers a surface. This is where any other defects will be detected. · Once the paint has passed all the tests the paint can continue on to packaging. · Latex paint is 60% water which corrodes metal, so the tin cans are lined with an anti-rust coating. · The cans run over a glue applicator, get labelled, get filled, and move on to the lid press. How Paint used to be made Cave paintings drawn with charcoal may have been made by early homo-sapiens as long as 40,000 years ago. Paint was made with the yolks from eggs which would allow the “paint” to harden and adhere to the surface it was applied to. Pigment was made from plants, sand and different soils. Back in these times, most paints used oil or water as a base. Lead Paint Lead pigment was specifically wanted for use in paint because of its durability. Lead paint adhered better to wood than any other paint known. Every other pa... ... middle of paper ... ...n on when you’re painting. . Chemical Formula There isn’t a general formula for paint, because there are many types of paint. Paints are combinations of many substances and chemicals, such as pigments, solvents, additives, and binding elements. Some chemicals that can be found in paint are resin, calcium carbonate, mica, polyurethanes, and titanium oxide. Works Cited http://en.wikipedia.org/wiki/Paint http://en.wikipedia.org/wiki/Lead_paint http://en.wikipedia.org/wiki/Tempera http://blog.roomations.com/2011/07/paint-and-primer-in-one-does-it-work.html http://answers.ask.com/Business/Constructions_and_Materials/what_is_the_chemical_formula_for_paint http://www.ask.com/question/what-is-the-chemical-formula-for-latex-paint http://en.wikipedia.org/wiki/Acrylic_paint http://willkempartschool.com/what-is-the-difference-between-oil-and-acrylic-paints/

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