The DuPont Coating

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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The Corrosion Defense

Zinc has unique properties and is used in their applications. The predominant use of zinc (50-60%) is the corrosion protection, in particular, galvanized, which is the coating of steel with zinc metal to protect against corrosion. Zinc is a very reactive metal (less reactive than magnesium or aluminum, but more reactive than iron) and it may seem strange that this should be able to protect steel from corrosion that could be imagined that zinc is more vulnerable and need all the protection you can get! However, when atmospheric oxygen reacts with the zinc surface, a very dense and impermeable layer of zinc oxide is formed and it is this physical barrier that protects the surface of zinc further attacks.

An article coated with zinc, such as a highway guardrail, a standard lighting or a garbage bomb galvanized quickly loses its shiny silver redesigned and is dull gray, and this is due to the formation of this oxide layer zinc, which is a natural aging process. The physical barrier of the zinc coating and its surface oxide which protects the steel. The interface between the zinc and steel is not really just a metal directly on one another. The galvanizing process creates a reaction between zinc and steel, means that a zinc-iron compound formed between steel and zinc, and this provides another barrier to corrosion and the unbreakable bond between zinc and steel. Zinc does not flake away from the steel in the way the paint.

There are two main classifications of zinc, zinc-General and continuous galvanizing. In general, galvanized steel post, after cleaning, is immersed in a bath of molten zinc and is then removed and emptied, the zinc coating will soon be fixed and the article can then be processed normally. General galvanizing may be used for large objects, like steel beams and structures as well as small items such as nuts, bolts and washers. Zinc is commonly used in zinc containing a small amount of lead deposited on the bottom of the galvanizing bath, and helps to protect the zinc bath in the attack and provides a surface of the liquid in which all non-iron-zinc compounds can be more easily collected and removed.

Zinc can also be applied as a continuous process of electrolytic zinc, although this process has been used less than a continuous hot dip galvanizing. Zinc can also be injected into the molten steel to provide protection, and this method has been used to protect large structures such as bridges. Probably the protection is not as good as if the parts were galvanized the original production, because the preparation and the application may not be as well-controlled building.

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The CO2 Coatings

DSM has teamed up with Novomer, a company in Waltham, Massachusetts, in which it holds a minority stake, to jointly develop a coating and adhesive resins using carbon dioxide (CO2) as raw material.

In 2007, this development agreement followed by a cooperation and investment by DSM Venturing into Novomer. A joint development project is expected to benefit from DSM access to markets and technology, as well as the technique of polymerization of CO2 Novomer.

Novomer develop chemistry and process technology to produce polymers from CO2 and propylene oxide (PO), while DSM will convert the polymers and resins in the formulation for applications such as coatings, adhesives and graphic arts. Companies have found the initial results encouraging and suggest that this project could lead to new and better properties of the coatings applied.

Once developed, the first polycarbonate resin used in applications such as paints, adhesives, inks and certain. The resin is made up to 50% by weight of CO2, so that not only remove CO2 from the atmosphere, but you also need the use of fossil fuels, raw materials and require less energy to produce than existing alternatives.

The production of this new material could begin next year and while the initial volume will necessarily be modest, it is technically possible that the new polycarbonate resin will become a common ingredient of coatings and other applications where conventional polycarbonates are used.

Rob van Leen, Chief Innovation Officer, DSM, said:  "DSM and Novomer trying to develop the first polymer is more than a decade to reach the finish this traditional industry is an exciting development may lead to a breakthrough that could change the industry, adding to the problems of cost, these innovative resins to address and performance on environmental issues. Therefore, they fit perfectly in the DSM "people, planet and profit approach '."

DSM and Novomer development project provides a fascinating insight into future production.

Climate change is a reality, and forward-thinking manufacturers hope to replace fossil fuels based on building blocks with more efficient alternatives that reduce and, ideally, prevent greenhouse gas emissions.

This may mean developing products and processes that produce the same end result of reducing greenhouse gas emissions, or a more fundamental shift away from fossil fuels in favor of bio-materials such as plant material. This has already resulted in biofuels and other materials from biorenewable sources.

While the jump from materials based on fossil fuels to bio-based materials represent an evolutionary transformation of the chemical industry, DSM and Novomer, cooperation goes further, since polycarbonate resin developed by the two parties use actual CO2, which should not be "grown", but can be extracted directly from the atmosphere.

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Electroless Nuclear Coating

Chemical nickel plating is used to deposit nickel without using an electric current. The coating is deposited by autocatalytic chemical reduction of nickel ions by hypophosphite compounds, aminoborane or borohydride. Two other methods have been used commercially for electroplating nickel, without power, including immersion plating (1) on steel from solutions of nickel chloride and boric acid at 70 ° C (160 ° F) and (2) the decomposition of nickel carbonyl vapor at 180 ° C (360 ° F). Immersion deposits, however, are poorly adherent and non protective, whereas the decomposition of nickel carbonyl is both expensive and dangerous. Therefore, electroless nickel only gained wide acceptance. Since the commercial use acquired in 1950, the electroless nickel grown rapidly and is now an established industrial process.

Currently, low acid hypophosphite hot bath are the most commonly used for steel plate and other metals, while the alkaline hot water baths hypophosphite are used for coating metal and plastic. Borohydride reduced baths are also used to plate iron and copper alloys, especially in Europe. Nickel is a chemical engineering coating, normally used due to the corrosion resistance and excellent wear. Electroless nickel coatings are frequently applied to aluminum to provide a surface for welding and are used with molds and dies to improve the lubricity and release of some. Because of these properties, chemical nickel coatings have found many applications, including oil, chemicals, plastics, optics, printing, mining, aerospace, nuclear and automotive electronics, computers, textiles, paper, machinery and foodstuffs (Ref).

Unlike electroplating, electro less plating allows for storage of materials of uniform coating on all surfaces, conductivity, size, shape and electrical. Electro-less copper and nickel phosphorus deposits to provide protective and functional coatings industries as diverse as electronics, automotive, aerospace and chemical engineering. This book covers the latest research on the electro deposition of less.

After an introductory chapter, the first part focuses on evidence from the review of the chemical copper areas, such as surface morphology and residual stresses, modeling the surface structure, the bond strength of the deposition electrolytic copper, the electrical resistivity and chemical applications of copper deposition. The second part is going to nickel-phosphorus electroless deposition with chapters on the crystallization of nickel-phosphorus deposits, the modeling of the thermodynamics and kinetics of the crystallization of nickel-phosphorus deposits, artificial neural networks (RNA) models of crystallization temperatures, the hardness of the evolution of nickel-phosphorus deposits and applications of electroless nickel-phosphor plates.

Some of the advantages and limitations of electroless nickel coatings include corrosion resistance advantages and even wear and excellent cost Weld ability Weld ability of low wages which exceed the limits of the chemical characteristics of the fragility of solder plating due to poor plate contamination with nickel phosphorus deposits need for nickel copper alloys containing significant amounts of lead, tin, cadmium and zinc before you can apply electroless nickel plates slower compared to the electrolytic method.

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Dupont Coatings

Teflon has often been described as "an example of serendipity, a flash of genius, a happy accident  and even a mixture of all three. "In 1938 Dr. Roy Plunkett, a DuPont chemist, began working with refrigerants. After verification of a frozen sample compressed Plunkett discovered that she had polymerized a waxy, white solid formed of polytetrafluoroethylene (PTFE). Plunkett Subsequent tests showed that the polymer is highly resistant to electricity, temperature, mold and fungus. And to top it off, the polymer is very smooth.

It would be several decades until DuPont felt comfortable enough to market their Teflon ® cookware. Laboratory tests confirm Teflon ® cookware starts to deteriorate when exposed to evil and extreme heat to 500 ° F or more. It is important to note that fats, butter and cooking oil tend to burn and smoke, only 400 ° F. In fact, foods cooked in edible state burning before non-stick cookware is deteriorating and poses serious health risks.

The Statue of Liberty: A lot of people might never guess that one of the most iconic American statues, Statue of Liberty, using Teflon ® as a lubricator and insulation to the exterior structure of the statue pure copper and steel frame. The Teflon ® coating protects most metals against wear and corrosion.

The wiper: For the automotive industry, DuPont Teflon ® has created a solution to the loud squeaking wipers when rain. The blade is coated with Teflon ® to reduce friction and more fluid movement through the windshield.

Modern food processing equipment: There are many advantages to using a Teflon ® coated components and the mountains of food processing plants. The food does not react with Teflon, so the purity of the product is maintained. Maintenance costs are reduced because of the equipment as Teflon to protect against wear and corrosion and to keep food from sticking, or connect. Because the devices are easier to clean and must be cleaned less frequently, less harsh cleaning chemicals or harmful substances in the environment, which is a good way to go green Teflon. In addition, less downtime for cleaning equipment to increase productivity.

DuPont Teflon, with its resistance to the non-stick, temperature stability, low friction and chemical properties of the revolutionaries has found new uses for everyday nonstick cookware with a modern architecture, a layer of metal, fabric , plastics and more. To ensure that your product application is done correctly Teflon, DuPont has created a program of industrial applicator license that allows only a limited number of companies to apply this revolutionary coating. In addition, DuPont continues to reduce the number of licensed industrial applicator to ensure that only companies that meet a high standard can apply the coating.

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Coating for wellhead equipment

Joints wellhead pharmaceutical and seals are critical components used in both submarines and surface applications. Above all, these parts made from all types of steel, stainless steel and high nickel alloys and are manufactured to strict tolerances. Lone Star manufactures all wellhead owners of our customers packaging requirements of machine tools with numerical control in both the U.S. and England. We currently operate over 20 different tools, ranging from small diameter of the bar based machines to large CNC horizontal.

Many of his own production gaskets and seals are coated. Carbon steel rings usually are coated with zinc or Zylan, while the other focuses more exotic materials are silver plated. And 'plan to require primary and secondary elastomeric seals, gaskets must be installed after the main body is coated with a seal.

During the manufacturing process, our engineers are constantly monitoring, measuring and inspection of the game. This culminates in each party having to go through exclusive final inspection on a CMM and a report be shipped with CMM. Lone Star has recently invested heavily in brand new, state of hardware and software art CMM to ensure the accuracy and reliability.

As with all our metal joints, our own seals and fully traceable through our unique traceability code and the heat comes with a package full of equipment certification.

Especially, if it is necessary that the properties of parts made to customer requirements. A deep understanding of customer needs is fundamental to the delivery of part of the "On Time" and guilt free. This is what Lone Star has an edge over the competition. We have provided equipment manufacturers for well over 10 years. Understanding the client's needs are unique, especially the relationships we build with our customers. Our customers see us as interested in the product. Hear us ask questions about what they want from the supplier, and we see a positive response to these requests.

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Coating for Downhole Tools

A Stabiltec downhole tool of photography has been a steady increase in production of precision and rehabilitation services downhole tools at competitive prices. Products include the full blade (IB), stabilizers, welded blade (WB), stabilizers, stabilizers Mud Motors, Rotary Wire API and our technology for the application of hard surfacing.

Our fully integrated facility includes large computerized CNC lathes used in the manufacture of downhole tools, ranging from 4.5 inches to 26 inches in diameter. It also allows cutters Fit-for-purpose can create spirals or straight troughs efficiency of the removal tool bulk major. Highly skilled technicians to maintain safety standards throughout our manufacturing process.

Precision welding services and restructuring

Recent merger of regal welding performance, significantly increases the production and recovery services available Stabiltec Services Downhole Tools. We now offer extended range of its techniques and procedures for applying hard coatings to extend the muddy parts of the engine and lower the downhole tools services.

Proprietary applications and Techniques

Stabiltec using oxy-acetylene, MIG, TIG, stick and PTA to use hard surfaces. Proprietary techniques used statistically outperform conventional laser clad coatings. Lower costs compared to the laser and the ability to repair existing coatings without removing the hard surface materials offer additional savings to customers to offset the cost of building new tools. PTA welding proved to be the most versatile program available because it gives more control over the heat, and thinning and deformation of the base material. Our own use and combination of powder mixtures to save time, is more cost effective and improves our ability to meet customer specifications.

Welding

MIG, which uses nickel-based tubular wire filled with fused tungsten carbide and fused tungsten carbide ball for hard surfacing has proven to be very effective and ... increasing wear resistance in selected applications. Control and Mig welding plant, instead of oxyacetylene welding improves the quality and greatly reduces the heat affected zone and the share of heat input. While the process of PTA provides to wear, MIG has stood the test time on small parts ... with less heat is a distinct advantage in torsion or heating distortion is a concern. MIG Team is easy to repair and can be reused more existing materials for the repair quickly and profitably.

Both the PTA and the MIG welding process is a non-magnetic coatings available. Drive also offers non-magnetic layers in the form of stick, TIG and Oxy-Acetylene pipes and cables. All application forms obtained similar results with these coatings.

Production

Our shipments structured piece of property (developed and produced by internally) has gained wide acceptance by directional drilling company’s reliability, durability and reparability. Costs less than a new unit, our programs have demonstrated on the field more than doubled to drive.

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