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63-583: Audi Sport GmbH , formerly known as quattro GmbH , is the high- performance car manufacturing subsidiary of Audi , itself a subsidiary of the greater Volkswagen Group . Founded in October 1983 as quattro GmbH, it primarily specializes in producing high-performance Audi cars and components, along with purchaser specified customizations . The company's former name was a homage to Audi's original four-wheel drive rally -inspired road car—the Audi Quattro . In 2016,

126-528: A company called Emerton and Manby was advertising exceptionally low-priced paints that had been ground with labor-saving technology: One Pound of Colour ground in a Horse-Mill will paint twelve Yards of Work, whereas Colour ground any other Way, will not do half that Quantity. By the proper onset of the Industrial Revolution , in the mid-18th century, paint was being ground in steam-powered mills, and an alternative to lead-based pigments had been found in

189-437: A cross-linked film. Depending on composition, they may need to dry first by evaporation of solvent. Classic two-package epoxies or polyurethanes would fall into this category. The "drying oils", counter-intuitively, cure by a crosslinking reaction even if they are not put through an oven cycle and seem to dry in air. The film formation mechanism of the simplest examples involves the first evaporation of solvents followed by

252-483: A motive power output of 368 kW (500 PS; 493 bhp) (measured according to Directive 80/1269/EEC ) at 4,000  rpm , and 1,000 N⋅m (738 lbf⋅ft) of torque at 1,750–3,000 rpm. This allows it to accelerate from 0–100 km/h (0–62 mph) in 5.5 seconds. Top speed is electronically limited to 250 km/h (155.3 mph). quattro GmbH has developed this new engine using existing technology from Audi's Le Mans endurance racing program –

315-627: A reaction with oxygen from the environment over a period of days, weeks, and even months to create a crosslinked network. Classic alkyd enamels would fall into this category. Oxidative cure coatings are catalyzed by metal complex driers such as cobalt naphthenate though cobalt octoate is more common. Recent environmental requirements restrict the use of volatile organic compounds (VOCs), and alternative means of curing have been developed, generally for industrial purposes. UV curing paints, for example, enable formulation with very low amounts of solvent, or even none at all. This can be achieved because of

378-406: A thinner oil is required. These volatile substances impart their properties temporarily—once the solvent has evaporated, the remaining paint is fixed to the surface. This component is optional: some paints have no diluent . Water is the main diluent for water-borne paints, even the co-solvent types. Solvent-borne, also called oil-based, paints can have various combinations of organic solvents as

441-518: A time at its sole plant at Neckarsulm. Chronologically, the first quattro GmbH model produced was the Audi RS2 Avant , a joint venture between Porsche and quattro GmbH, from 1994–1996 (and actually built at Porsche's Zuffenhausen plant). After this initial joint venture, all subsequent cars have been solely (with the exception of the Audi TT RS ) produced at Neckarsulm by quattro GmbH. The second car

504-489: A wall properly and evenly. The previous coats having dried would be white whereas the new wet coat would be distinctly pink. Ashland Inc. introduced foundry refractory coatings with similar principle in 2005 for use in foundries. Electrochromic paints change color in response to an applied electric current. Car manufacturer Nissan has been reportedly working on an electrochromic paint, based on particles of paramagnetic iron oxide . When subjected to an electromagnetic field

567-473: A white derivative of zinc oxide. Interior house painting increasingly became the norm as the 19th century progressed, both for decorative reasons and because the paint was effective in preventing the walls rotting from damp. Linseed oil was also increasingly used as an inexpensive binder. In 1866, Sherwin-Williams in the United States opened as a large paint-maker and invented a paint that could be used from

630-593: A wide selection of wooden trims, sourced from around the world, along with colour-coordinated piping on the edges of tailored floor carpet mats. A range of in-car office equipment is also available. quattro GmbH first offered this service at the 1995 Frankfurt International Motor Show . From 1985, quattro GmbH has developed a range of Audi lifestyle products, known as Audi Accessories . These include mountain bikes and personal leather goods, such as briefcases , handbags, purses and wallets . quattro GmbH has historically only been able to produce one specific model at

693-477: Is a misnomer because no chemical curing reactions are required to knit the film. On the other hand, thermosetting mechanisms are true curing mechanisms involving chemical reaction(s) among the polymers that make up the binder. Some films are formed by simply cooling the binder. For example, encaustic or wax paints are liquid when warm, and harden upon cooling. In many cases, they re-soften or liquify if reheated. Paints that dry by solvent evaporation and contain

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756-405: Is an opaque variant of watercolor , which is based around varying levels of translucency; both paints use gum arabic as the binder and water as a thinner. Gouache is also known as 'designer color' or 'body color'. Poster paint is a distemper paint that has been used primarily in the creation of student works, or by children. There are varying brands of poster paint and depending on the brand,

819-432: Is applied or removed, and so they change color. Color-changing paints can also be made by adding halochromic compounds or other organic pigments. One patent cites use of these indicators for wall coating applications for light-colored paints. When the paint is wet it is pink in color but upon drying it regains its original white color. As cited in patent, this property of the paint enabled two or more coats to be applied on

882-669: Is built in a new and totally separate quattro GmbH plant at Neckarsulm. The latest Audi TT RS and the Audi RS3 are both notable departures from this Neckarsulm-only production tradition. Whilst the TT ;RS and RS3 were wholly designed, developed and engineered at Neckarsulm by quattro GmbH, they are manufactured alongside the non-RS Audi models, with the TT RS being manufactured at Győr , Hungary , by AUDI AG subsidiary Audi Hungaria Motor Kft . quattro GmbH-produced cars from Neckarsulm can be identified by their specific 2nd and 3rd digit of

945-549: Is called Audi exclusive , and extends to virtually all areas of the car. The customer may choose unique exterior paint , in any colour, as well as alloy wheels originally developed by quattro GmbH. For the interior, the upholstery can be finished in various grades and grains of leathers (including Nappa ), in a choice of colours. These coloured leathers may also be applied to interior door coverings and rear parcel shelves. Headlining fabrics can be customized in colour, along with seat belt webbing. The interior can be finished with

1008-643: Is expressed as the volume solid . The binder is the film-forming component of paint. It is the only component that is always present among all the various types of formulations. Many binders must be thick enough to be applied and thinned. The type of thinner, if present, varies with the binder. The binder imparts properties such as gloss, durability, flexibility, and toughness. Binders include synthetic or natural resins such as alkyds , acrylics , vinyl-acrylics, vinyl acetate/ethylene (VAE), polyurethanes , polyesters , melamine resins , epoxy , silanes or siloxanes or oils . Binders can be categorized according to

1071-506: Is not an ingredient. These dispersions are prepared by emulsion polymerization . Such paints cure by a process called coalescence where first the water and then the trace, or coalescing, solvent, evaporate and draw together and soften the binder particles and fuse them together into irreversibly bound networked structures, so that the paint cannot redissolve in the solvent/water that originally carried it. The residual surfactants in paint , as well as hydrolytic effects with some polymers cause

1134-599: Is possible in the following categories: Paint Primitive forms of paint were used tens of thousands of years ago in cave paintings . Clean-up solvents are also different for water-based paint than oil-based paint. Water-based paints and oil-based paints will cure differently based on the outside ambient temperature of the object being painted (such as a house). Usually, the object being painted must be over 10 °C (50 °F), although some manufacturers of external paints/primers claim they can be applied when temperatures are as low as 2 °C (35 °F). Paint

1197-470: The Audi R15 TDI . Performance car A performance car is a car that exhibits above-average capabilities in one or more of the following areas: acceleration ( torque and throttle response ), top speed ( horsepower ), cornering and braking . It is debated how much performance is required to move classification from standard to high performance. Further classification of performance cars

1260-582: The Audi RS3 , Audi RS Q8 , and the Audi R8 . They also design and produce special wheels, sport suspension, and exterior body panels, such as front bumpers, side skirts, and rear bumpers, which are mainly used on the Audi "S line" trim specification available on most of Audi's model range. The Audi RS cars are Audi's high performance variants of their regular offerings, similar to BMW 's M cars and Mercedes Benz AMG subsidiary. The "RS" initials are taken from

1323-627: The Audi RS4 , the Audi RS5 , the Audi RS6 and the Audi RS7 Sportback . Furthermore, it does not sell its automobiles directly to the public via franchised outlets under its own brand name; instead, they are sold under the Audi marque . Audi Sport GmbH specializes in four 'key' areas, including the design, testing, and production of specialist and high performance Audi automobiles . Examples include

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1386-480: The German : RennSport – literally translated as "racing sport". RS is Audi's highest trim level, positioned above the " S " ("Sport") specification level of Audi's regular model range. Audi Sport creates, designs , and produces all RS models in conjunction with its parent, Audi AG. The RS models are typically Audi's most powerful cars and are built in limited numbers with the latest technology and engineering offered by

1449-612: The World Manufacturer Identifier section of the vehicles' Vehicle Identification Number (VIN) – quattro GmbH manufactured cars begin with 'W UA ....', whereas cars produced by AUDI AG in Germany begin with 'W AU ....'. The Audi R8 two-seat mid-engined sports car was exclusively designed and developed and is produced by quattro GmbH. An old factory on the Audi Neckarsulm site was redeveloped, and € 28 million

1512-477: The resin binder. Most pigments used in paint tend to be spherical, but lamellar pigments, such as glass flake and MIO have overlapping plates, which impede the path of water molecules. For optimum performance MIO should have a high content of thin flake-like particles resembling mica . ISO 10601 sets two levels of MIO content. MIO is often derived from a form of hematite . Pigments can be classified as either natural or synthetic. Natural pigments are taken from

1575-818: The Color Index system, which is commercially significant. Besides the three main categories of ingredients (binder, diluent, pigment), paint can have a wide variety of miscellaneous additives, which are usually added in small amounts, yet provide a significant effect on the product. Some examples include additives to modify surface tension , improve flow properties, improve the finished appearance, increase wet edge, improve pigment stability, impart antifreeze properties, control foaming, control skinning, create acrylic pouring cells, etc. Other types of additives include catalysts , thickeners, stabilizers, emulsifiers , texturizers, adhesion promoters, UV stabilizers, flatteners (de-glossing agents), biocides to fight bacterial growth and

1638-650: The R8 is also available, using a de-tuned version of their sister company's 5.2-litre FSI V10, used in the Lamborghini Gallardo LP560-4 . This variant produces 386 kW (525 PS; 518 bhp) and 530 N⋅m (391 lb⋅ft) of torque. Furthermore, quattro GmbH unveiled a diesel engined R8 concept , the "R8 V12 TDI" (later renamed "R8 TDI Le Mans"). This was to use a 6.0-litre V12 engine , utilising Volkswagen Group 's long-established Turbocharged Direct Injection (TDI) turbodiesel technology. This engine

1701-540: The UK 'Special Edition' with black optics pack, ventilated cross-drilled front disc brakes, black exhaust pipes, two-tone leather interior – and the Swedish 'TS' designation with ventilated cross-drilled front disc brakes, S4 chassis, sport seats and aluminum interior detailing, and as of 2009, the ninth and latest offering is the 2008 C6 RS6 5.0 TFSI quattro . In 2005, they built an Audi TT quattro sport with 176 kW. The Audi R8

1764-456: The UK and Latex in the United States is a water-borne dispersion of sub-micrometer polymer particles. These terms in their respective countries cover all paints that use synthetic polymers such as acrylic, vinyl acrylic ( PVA ), styrene acrylic, etc. as binders. The term "latex" in the context of paint in the United States simply means an aqueous dispersion; latex rubber from the rubber tree

1827-402: The binder is left on the coated surface. Thus, an important quantity in coatings formulation is the "vehicle solids", sometimes called the "resin solids" of the formula. This is the proportion of the wet coating weight that is binder, i.e., the polymer backbone of the film that will remain after drying or curing is complete. The volume of paint after it has dried, therefore only leaving the solids,

1890-579: The car maker. S line is a trim specification that is offered on many Audi models. Whilst the individual S line parts and components are designed and manufactured by quattro GmbH, Audi "S line" cars are still manufactured in the same AUDI AG factories , on the same production lines as their related models with differing trim levels. Cars with "S line" trim should not be confused with high-performance "S" and "RS" models. Audi cars with S line trim bear identical performance figures to their counterparts with SE or base trim levels, with

1953-488: The company was renamed Audi Sport GmbH. The division's operations are located in a 3,500 square metres (37,670  sq ft ) site at Neckarsulm , near Stuttgart , in the German State of Baden-Württemberg . Development and manufacturing factories are based within a larger 10,700 square metres (115,170 sq ft) site of the now defunct German automotive maker NSU Motorenwerke AG . Its core products include

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2016-425: The difficulty in acquiring and working the materials meant that they were rarely used (and indeed, the slow drying was seen as a disadvantage ). The paint was made with the yolk of eggs , and therefore, the substance would harden and adhere to the surface it was applied to. The pigment was made from plants, sand, and different soils. Most paints use either oil or water as a base (the diluent , solvent, or vehicle for

2079-540: The diluent, including aliphatics , aromatics , alcohols , ketones and white spirit . Specific examples are organic solvents such as petroleum distillate , esters , glycol ethers, and the like. Sometimes volatile low-molecular weight synthetic resins also serve as diluents. Pigments are solid particles or flakes incorporated in the paint, usually to contribute color to the paint film. Pigments impart color by selective absorption of certain wavelengths of light and/or by scattering or reflecting light. The particle size of

2142-434: The earth or plant sources and include colorants such as metal oxides or carbon black, or various clays , calcium carbonate , mica , silicas , and talcs . Synthetics include a host of colorants created in the lab as well as engineered molecules, calcined clays, blanc fixe , precipitated calcium carbonate, and synthetic pyrogenic silicas. The pigments and dyes that are used as colorants are classified by chemical type using

2205-416: The elements, still possess their brilliant color, as vivid as when they were painted about 2,000 years ago. The Egyptians mixed their colors with a gummy substance and applied them separately from each other without any blending or mixture. They appear to have used six colors: white, black, blue, red, yellow, and green. They first covered the area entirely with white, then traced the design in black, leaving out

2268-490: The exception of the Audi Q7 S ;line with the 3.0 V6 TFSI petrol engines (213  kW (290  PS ; 286  bhp ) for standard, 245 kW (333 PS; 329 bhp) for S line). quattro GmbH offers potential purchasers of new Audi cars the possibility of customizing their new car beyond the scope of "conventional" options, to their own personal desires during the initial manufacturing process. This facility

2331-427: The foundation of Rome . After the lapse of so many centuries, he expressed great surprise and admiration at their freshness. In the 13th century, oil was used to detail tempera paintings. In the 14th century, Cennino Cennini described a painting technique utilizing tempera painting covered by light layers of oil. The slow-drying properties of organic oils were commonly known to early European painters. However,

2394-489: The functional pigments. These are typically used to build film thickness and/or reduce the cost of the paint, or they can impart toughness and texture to the film. Fillers are usually cheap and inert materials, such as diatomaceous earth , talc , lime , barytes , clay, etc. Floor paints that must resist abrasion may contain fine quartz sand as a filler. Sometimes, a single pigment can serve both decorative and functional purposes. For example some decorative pigments protect

2457-402: The heating of the substrate after electrostatic application of the dry powder. So-called "catalyzed" lacquers" or "crosslinking latex" coatings are designed to form films by a combination of methods: classic drying plus a curing reaction that benefits from the catalyst. There are paints called plastisols/organosols, which are made by blending PVC granules with a plasticiser. These are stoved and

2520-408: The lights of the ground color. They used minium for red, generally of a dark tinge. The oldest known oil paintings are Buddhist murals created c.  650 AD . The works are located in cave-like rooms carved from the cliffs of Afghanistan's Bamiyan Valley , "using walnut and poppy seed oils." Pliny mentions some painted ceilings in his day in the town of Ardea , which had been made before

2583-648: The like. Additives normally do not significantly alter the percentages of individual components in a formulation. Various technologies exist for making paints that change color. Thermochromic ink and coatings contain materials that change conformation when heat is applied or removed, and so they change color. Liquid crystals have been used in such paints, such as in the thermometer strips and tapes used in aquaria and novelty/promotional thermal cups and straws. Photochromic materials are used to make eyeglasses and other products. Similar to thermochromic molecules, photochromic molecules change conformation when light energy

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2646-419: The market with the development of acrylic and other latex paints. Milk paints (also called casein ), where the medium is derived from the natural emulsion that is milk , were common in the 19th century and are still used. Used by the earliest western artists, Egg tempera (where the medium is an emulsion of raw egg yolk mixed with oil) remains in use as well, as are encaustic wax -based paints. Gouache

2709-413: The mechanisms for film formation. Thermoplastic mechanisms include drying and coalescence. Drying refers to simply evaporating the solvent or thinner to leave a coherent film behind. Coalescence refers to a mechanism that involves drying followed by actual interpenetration and fusion of formerly discrete particles. Thermoplastic film-forming mechanisms are sometimes described as "thermoplastic cure," but that

2772-463: The mix coalesces. The main purposes of the diluent are to dissolve the polymer and adjust the viscosity of the paint. It is volatile and does not become part of the paint film. It also controls flow and application properties, and in some cases can affect the stability of the paint while in liquid state. Its main function is as the carrier for the non-volatile components. To spread heavier oils (for example, linseed) as in oil-based interior house paint,

2835-420: The monomers and oligomers used in the coating have relatively very low molecular weight, and are therefore low enough in viscosity to enable good fluid flow without the need for additional thinner. If solvent is present in significant amounts, generally it is mostly evaporated first and then crosslinking is initiated by ultraviolet light. Similarly, powder coatings contain no solvent. Flow and cure are produced by

2898-417: The nanoparticle sizes rather than picking/mixing minerals to do so. These paints weighed a tiny fraction of the weight of conventional paints, a particular advantage in air and road vehicles. They reflect heat from sunlight and do not break down outdoors. Preliminary experiments suggest it can reduce temperatures by 20 to 30 degrees Fahrenheit vs conventional paint. Its constituents are also less toxic. Making

2961-430: The paint starts with a thin double-sided mirror. The researchers deposited metallic nanoparticles on both sides of the sheet. Large sheets were ground to produce small flakes. The vehicle is composed of binder; if it is necessary to thin it with a diluent like solvent or water, it is a combination of binder and diluent. In this case, once the paint has dried or cured very nearly all of the diluent has evaporated and only

3024-408: The paint to remain susceptible to softening and, over time, degradation by water. The general term of latex paint is usually used in the United States, while the term emulsion paint is used for the same products in the UK, and the term latex paint is not used at all. Paints that cure by polymerization are generally one- or two-package coatings that polymerize by way of a chemical reaction and cure into

3087-476: The paramagnetic particles change spacing, modifying their color and reflective properties. The electromagnetic field would be formed using the conductive metal of the car body. Electrochromic paints can be applied to plastic substrates as well, using a different coating chemistry. The technology involves using special dyes that change conformation when an electric current is applied across the film itself. This new technology has been used to achieve glare protection at

3150-526: The pigment and oil mixture would have been ground into a paste with a mortar and pestle. The painters did the process by hand, which exposed them to lead poisoning due to the white-lead powder. In 1718, Marshall Smith invented a "Machine or Engine for the Grinding of Colors" in England. It is not known precisely how it operated, but it was a device that dramatically increased the efficiency of pigment grinding. Soon,

3213-529: The pigment is critical to the light-scattering mechanism. The size of such particles can be measured with a Hegman gauge . Dyes, on the other hand, are dissolve in the paint and impart color only by the selective absorption mechanism. Paints can be formulated with only pigments, only dyes, both, or neither. Pigments can also be used to give the paint special physical or optical properties, as opposed to imparting color, in which case they are called functional pigments. Fillers or extenders are an important class of

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3276-467: The pigment). The Flemish-trained or influenced Antonello da Messina , who Vasari wrongly credited with the introduction of oil paint to Italy, does seem to have improved the formula by adding litharge , or lead (II) oxide. A still extant example of 17th-century house oil painting is Ham House in Surrey , England , where a primer was used along with several undercoats and an elaborate decorative overcoat;

3339-455: The quality will differ. More inexpensive brands will often crack or fade over time if they are left on a poster for an extended time. Paint can be applied as a solid, a gas, a gaseous suspension ( aerosol ) or a liquid. Techniques vary depending on the practical or artistic results desired. As a solid (usually used in industrial and automotive applications), the paint is applied as a very fine powder, then baked at high temperature. This melts

3402-433: The same cave resulted in the 2011 report of a complete toolkit for grinding pigments and making a primitive paint-like substance. Interior walls at the 5,000-year-old Ness of Brodgar have been found to incorporate individual stones painted in yellows, reds, and oranges, using ochre pigment made of haematite mixed with animal fat, milk or eggs. Ancient colored walls at Dendera , Egypt , which were exposed for years to

3465-640: The solid binder dissolved in a solvent are known as lacquers . A solid film forms when the solvent evaporates. Because no chemical crosslinking is involved, the film can re-dissolve in solvent; lacquers are unsuitable for applications where chemical resistance is important. Classic nitrocellulose lacquers fall into this category, as do non-grain raising stains composed of dyes dissolved in solvent. Performance varies by formulation, but lacquers generally tend to have better UV resistance and lower corrosion resistance than comparable systems that cure by polymerization or coalescence. The paint type known as Emulsion in

3528-442: The substrate from the harmful effects of ultraviolet light by making the paint opaque to these wavelengths, i.e. by selectively absorbing them. These hiding pigments include titanium dioxide , phthalo blue , red iron oxide , and many others. Some pigments are toxic, such as the lead pigments that are used in lead paint . Paint manufacturers began replacing white lead pigments with titanium white (titanium dioxide), before lead

3591-539: The tin without preparation. It was only when the stimulus of World War II created a shortage of linseed oil in the supply market that artificial resins, or alkyds, were invented. Cheap and easy to make, they held the color well and lasted for a long time. Through the 20th century, paints used pigments , typically suspended in a liquid. In the 21st century, "paints" that used structural color were created. Aluminum flakes dotted with smaller aluminum nanoparticles could be tuned to produce arbitrary colors by adjusting

3654-554: The touch of a button in passenger airplane windows. Color can also change depending on viewing angle, using iridescence , for example, in ChromaFlair . Since the time of the Renaissance , siccative (drying) oil paints, primarily linseed oil , have been the most commonly used kind of paints in fine art applications; oil paint is still common today. However, in the 20th century, new water-borne paints such acrylic paints , entered

3717-728: Was banned in paint for residential use in 1978 by the US Consumer Product Safety Commission. The titanium dioxide used in most paints today is often coated with silica/alumina/zirconium for various reasons, such as better exterior durability, or better hiding performance (opacity) promoted by more optimal spacing within the paint film. Micaceous iron oxide (MIO) is another alternative to lead for protection of steel, giving more protection against water and light damage than most paints. When MIO pigments are ground into fine particles, most cleave into shiny layers, which reflect light, thus minimising UV degradation and protecting

3780-497: Was invested in the new R8 production line. Around 250 employees work on this car. The longitudinally oriented 4.2  litre Fuel Stratified Injection (FSI) V8 engine used in the R8, rated at 309  kW (420  PS ; 414  bhp ) and 430  N⋅m (317  lbf⋅ft ) of torque, is shared from the B7 RS4 quattro , but modified to use a dry sump lubrication system and induction system. A subsequent V10 engined version of

3843-411: Was rated at 368 kW (500 PS; 493 bhp) and 1,000 N⋅m (738 lbf⋅ft) of torque. quattro GmbH has developed the most powerful diesel powered sport utility vehicle (SUV) in its class. The Audi Q7 V12 TDI quattro is fitted with a V12 Turbocharged Direct Injection (TDI) internal combustion engine . A world first, this all new diesel engine displaces 6.0 litres, generating

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3906-505: Was the C4 S6 Plus , produced from April 1996 to July 1997. Third was the 2000–2001 B5 RS4 Avant quattro ; fourth was the 2003 C5 RS6 quattro ; fifth was the 2005 B7 A4 DTM Edition saloon. Sixth out of quattro GmbH was the 2006 B7 RS4 quattro , seventh out of quattro GmbH was the 2006 B7 S4 25 Quattro , the eighth was a special edition A4 S-Line with 220 hp (223 PS; 164 kW) and additional options for local markets – for example

3969-506: Was used in some of the earliest known human artworks. Some cave paintings drawn with red or yellow ochre , hematite , manganese oxide , and charcoal may have been made by early Homo sapiens as long as 40,000 years ago. Paint may be even older. In 2003 and 2004, South African archeologists reported finds in Blombos Cave of a 100,000-year-old human-made ochre -based mixture that could have been used like paint. Further excavation in

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