2006-12-11 20:34:24 · 6 answers · asked by venky 1 in Science & Mathematics ➔ Chemistry
Enamel Paints are made by mixing four basic type of ingredients. A binder (a resin), Pigments (coloring and filler materials), Solvents (Diluents for ease of application and spreading the paint) and other additives(Driers, Surface Active Agents, Antioxidants, Anti Skinning Agents etc).
For manufacture of enamel paints the binder used is called an alkyd. An alkyd can be air drying, semi air drying or nondrying. The alkyd resin is produced by reacting phthalic anhydride, a poly-alcohol like penta-erythritol and the oils together in a reaction kettle. The air drying oils (like Linseed oil, palm oil or mustard oil) provide an air drying alkyd. Non air drying oils like castor oil and cocunut oils, produce non drying alkyds. The oils provide plasticity, film properties and drying moities in the alkyd resins.
Air drying enamels contain air drying alkyd resins. They dry due to the double bonds present in their oils by reacting with oxygen from air. Stoving enamel systems are made similarly but mixed with other resins which cross link with alkyds on heating and produce a three dimensional polymer matrix.
The alkyd resin and the pigments are first ground in a ball-mill or a sand mill to a uniform consistency. It is then ground and diluted with solvents like mineral turpentine and then blended with other additives to the final product.
2006-12-11 21:08:00 · answer #1 · answered by krishash49 2 · 1⤊ 0⤋
An enamel paint is a paint that dries to an especially hard, usually glossy, finish.
This is a commonly used, yet fanciful term, implying that an ordinary latex or oil-based paint has the same properties as true, fired vitreous enamel.
Some enamel paints have been made by adding varnish to oil-based paint.
The term sometimes refers to oil-modified polyesters that were introduced in the early 1930s. The oil is required to stop or enhance the crosslinking of the paint in order to achieve sufficient flexibility of the paint film.
Typically the term "enamel paint" is used to describe oil-based covering products, usually with a significant amount of gloss in them, however recently many latex or water-based paints have adopted the term as well. The term today means "hard surfaced paint" and usually is in reference to paint brands of higher quality, floor coatings of a high gloss finish, or spray paints.
2006-12-12 05:06:53 · answer #2 · answered by catzpaw 6 · 0⤊ 1⤋
Steps involved in Enamel paint Manufacturing...
1)Selection of raw material based on quality expected.
arw material includes...
Resins ( Binder) - Alkyd, Polyster, Acrylic,Poly Urethane, Epoxy,Blends of resins.
Pigments ( Colouring Media)-Depending on colours required.
Extenders - Transparent Pigments -does not provide colour but increase solid contents in the paints.
Additives - anti-settling agents,anti fungus agents, levelling agents, additives for various resistances like-corrosion resistance etc.
Solvents- Xylene, Toluene, Esters, Ketones,Butyl Cellosolves, Acetates, MIBK etc.-These solvents enable Paints to flow and make film defect free.
All these items are mixed in ball mill and then fine grinding in attriator, after that it is tested and filled in containers thru filteration.
2006-12-13 04:34:23 · answer #3 · answered by aka 1 · 0⤊ 0⤋
You had better rung up Asian Paints
2006-12-12 04:49:37 · answer #4 · answered by Truth ? 5 · 0⤊ 1⤋
Buy it datz wht u can do
2006-12-16 04:07:39 · answer #5 · answered by Anonymous · 0⤊ 0⤋
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2006-12-12 04:41:36 · answer #6 · answered by spy_x 1 · 0⤊ 1⤋