Friday, April 27, 2012

The DuPont Coatings


Teflon ® PTFE resin fluropolymer was discovered in 1938 by DuPont chemist Roy Plunkett. Since then, DuPont has developed a wide range of industrial coatings that carry the brand name Teflon ®. DuPont Teflon ® industrial coatings have received the approval of a wide range of applications. Many of Teflon ® coatings are FDA-compliant and can be used in food contact applications.

DuPont Teflon ® industrial coatings can be used for aluminum, carbon steel, stainless steel, alloy steel, brass, magnesium and other metals, as well as non-metallic colors, such as glass, fiberglass, rubber and some plastics. Heat treatment is then required to take care of coated product.

Plas-Tech is a long list of industries. The reason we serve many industries are due to different characteristics of Teflon ® and other fluoropolymer coatings we apply. Did you know that besides having the lowest coefficient of friction of the solid material known to man that Teflon ® is non-wetting, it has a high dielectric strength, chemical resistance, almost universal, and in many cases heat resistance to 500 ° F.

Very few substances is permanently attached to a Teflon ® surface. While sticky materials may show some temporary membership, almost all substances release easily.

Teflon ® coating on the belt of food prevents the accumulation of food debris and allows easy cleaning.
The combination of extreme low temperature stability and extremely high (-450 ° C to + 550 ° F) advocates the use of Teflon ® in a wider temperature range than any other organic coating material.

Teflon ® coated extrusion dies extrusion rates that allow more and better surface finish is an example of an application at high temperatures where other coatings can not be used.

Friction of Teflon ® is the range of 0.03 to 0.15, depending on load, sliding speed and special Teflon ® finish used.

Threaded that plugs must be removed and back in position often lubricated with Teflon ® to prevent and to allow re-sealing.

Teflon ® is unaffected by most chemical environments. The only chemicals known to affect Teflon ® finish is certain alkaline and more reactive fluorinating agents.

Metal seals are coated with Teflon ® shows improved sealing properties due to the malleability of Teflon ®.
New Teflon ® compounds have been developed that can be used for the elastomeric "O" rings and seals.

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