Tag Archive | "Textar"

PUTTING A STOP TO BRAKE DUST

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PUTTING A STOP TO BRAKE DUST


By Greg Whitaker

The knives have been out for traveling by car recently. All around the nation, there have been scores of column inches devoted to the harm that small particulate matter does to our bodies – and if you live around London, you have probably seen some of the anti-car campaigns being run by the Mayor’s office as a new wave of legislation dictating what vehicles can be driven and when take effect.

It isn’t just smokey exhausts that have caught the attention of the powers that be. A cross-party committee called the Air Quality Expert Group has identified that tyres, roads and perhaps most notably, the dust from brake linings are a source of very small particulates which can cause problems with breathing and can also enter the water table easily when rain washes the dust from the road.

Scale of the issue

In one sense the problem is unlikely to be growing as hybrid and electric vehicles use regenerative braking, so the amount of wear on the pads is greatly reduced. However, as the amount of particulates from exhausts reduces, pollution from brake and tyre wear will increase as a percentage, with DEfRA predicting that 10 percent of transport emissions will be from these sources by 2030. In Germany alone it has been calculated that 10,000 tonnes of brake dust is scattered annually.

It might be easy to dismiss this issue as just rhetoric, but cases of lung diseases and asthma are on the rise and there is good evidence that it is the smaller particles, rather than the bigger sooty ones, that cause the most damage to the organs of the body.

So, what can be done? We asked a number of the 60 or so friction lining brands if they are taking any action on the issue.

Scott Irwin, Technical Trainer at TMD Friction, the company behind brands such as Mintex, Textar and Pagid, said: “With regards to pollution through tyres and brakes overall, there are currently no official limits or common methods of measurement. It is much more difficult to provide these guidelines than it was for emissions from exhaust pipes because brakes are open systems”.

He added that his company has around 800 materials to choose from. “Our raw material portfolio management team proactively researches and tests suitable new raw materials that are not harmful to people or the environment when processed or when used in the brake system,” he said, adding that TMD is a member of the UN’s Particle Measurement Programme which is dedicated to address the issues of non-exhaust related emissions from vehicles.

New materials

Most people know that asbestos was used in making brake pads and shoes until it was, quite sensibly, banned from use donkey’s years ago. Perhaps less well known is the use of copper wire to make the friction material bind together. Copper isn’t in itself harmful, but when ground into a fine power, the metal can get into the bloodstream where it is toxic.

Copper is being phased out, and some companies have already removed it entirely from friction linings. However, others have kept it in the mixture and will do so until required to do so by law.

Matt Leeming a Manager at aftermarket braking brand Juratec noted that his company had discontinued use of copper and other heavy metals some time ago, but the problem is spread wider: “Of course, governments are looking to go further than just restricting the use of some of the more problematic ingredients of brake pads. It has been established that this wear debris, or particulate matter, which is a mixture of both pad and disc debris ranging in particle size from under 100 micrometres to approx. 0.1 micrometres, with some of it falling in the critical respirable range of 10 to one micrometres” he said.

By comparison, a human hair typically has a width of about 50 micrometres.

“To reduce particle emissions further will require a much broader approach across a number of fronts so we are seeing special hard coatings being applied to the surface of brake discs to reduce their wear rates and of course carbon-ceramic discs offer reduced wear albeit at a significantly higher cost” Leeming furthered. “The automotive industry is also exploring partially enclosing brakes and fitting them with filters in order to capture the bulk of particulate emissions so the likely final outcome will be a combination of measures”.

The filters referred to by Leeming are being developed by companies including Mann+Hummel based in Germany. The firm recently exhibited a working model of a brake dust filter, which featured in the firm’s company magazine. For the filter media the engineers opted for a metallic based web. The fibers are resistant to corrosion and are able to withstand the high temperatures on the brake. Several German magazines have also shown pictures of the filter, built on as part of the brake mechanism, being tested on various new VWs, suggesting that VMs might include the design on new vehicles in the near future.

Some firms are further down the road of removing metal from brake pads than others. A few we spoke to would only say that the binding agent would be removed ‘when the time comes’, i.e when required to do so by legislation and herein lies the problem of cleaning up the mixture used in brake linings.

There is scope for development, but with so many brands fighting for space on the factor’s racking, there needs to be rules and clearly repeatable tests introduced that everyone must follow.

Trains a problem too

Don’t think that simply avoiding cars and taking the tube will be an answer to keeping clear of brake dust particulates. Filter brand Mann+Hummel has reported that longer visits to underground railway stations can also be harmful to health. Measurements in the London underground system, for example, have registered air pollution with inhalable particles in the range of 500 to 1,120mg per cubic metre, which compared to the EU’s guideline of 50mg is off the scale. A tunnel cleaning train used to be in service, but it was withdrawn and plans for a replacement were quietly dropped.

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PROMO: TEXTAR LAUNCHES HYDRA TEC


PROMOTIONAL ARTICLE ON BEHALF OF TEXTAR

Textar, has expanded its range of brake installation and maintenance products with the launch of Hydra Tec.

The new lubricant has been specifically created for hydraulic components in brake and clutch systems and is ideal for lubricating cylinder working surfaces, pistons and sealing elements. This makes it overall easier to install hydraulic brake components in the caliper.

Hydra Tec also protects working surfaces and other metallic components against corrosion thanks to its water-repellent properties. The formula prevents brake seizure when utilised correctly, keeping all the brake components protected and moving as required.

Scott Irwin, head of technical training at TMD Friction, said: “Hydra Tec is the ideal solution for mechanics when lubricating the caliper’s moving parts. To utilise the paste effectively, we recommend applying a thin, even layer to the working surfaces of the brakes, minus the brake pads, and avoiding using mineral oils as substitutes as the constituents can cause seals to swell and adversely affect the functions of the caliper.”

Available in 180 millilitre tubes, Hydra Tec is compatible with EPDM caoutchouc rubber and commercially available brake fluids including DOT 3, DOT 4, DOT 4LV and DOT 5.1.

Textar, which is manufactured by one of the global leaders in brake friction technology, TMD Friction, covers 99.9% of the UK car parc and includes pads, discs, accessories and brake fluid available for next day delivery.

 

As a global premium brand offering a selection of OE and aftermarket products, Textar has an established reputation for high quality, performance and endurance. This makes it the brand of choice for factors and garages.

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TEXTAR BRAKE PADS ACHIEVE RESULTS IN AMS BRAKING TEST

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TEXTAR BRAKE PADS ACHIEVE RESULTS IN AMS BRAKING TEST


PROMOTION ARTICLE ON BEHALF OF TEXTAR

Global OE friction manufacturer, TMD Friction, has proved the quality of its Textar aftermarket brakes in an AMS braking test that scored Textar above the competition and original equipment manufactured material (OEM).

An Audi A5 and VW Passat Variant test vehicles were loaded to the permissible gross vehicle weight along with two passengers. The car was brought to a standstill by braking from a speed of 100 km/h ten times in a row. The first and the tenth braking applications were evaluated to provide information about the characteristics of the brake pads when they were cold and hot.

Textar competed against three competitor brands and the respective OEM material, with both test vehicles equipped with ex works. Overall, Textar achieved the best results compared to the competitors’ products and the VW Passat Variant scored even better results than the OEM material. The Audi A5 with Textar brakes performed identical to the OEM material, for cold and hot braking, and was the most stable performer in comparison with its competitors. The difference between the first and tenth braking application was only 0.2 m, the same as the amount achieved by the brake pad fitted as part of the original equipment from the manufacturer. The biggest deviation by a competitor was 2.8 m.

For cold braking, Textar brake pads and all three competitors achieved even better results than the OEM material. For hot braking, nearly every brake pad except one beat the OEM pad in terms of braking distance. Textar was the supplier with the lowest deviation between the first and tenth braking application, only 0.2m, compared to a competitor with 8.7m which corresponds to two vehicle lengths.

The internationally accepted AMS test was originally developed by automobile magazine, Auto Motor Sport. TMD Friction performed the test within the scope of the benchmark series, to secure and expand the high quality and performance of its products based on the results gained.

Vincenzo Di Caro, Product Engineer of TMD Friction, said: “Today, in a time of high-tech, high-performance cars and increasing traffic, brakes have to generate maximum performance with speeds of up to 250 kilometres per hour. Significant testing cycles are also very important to us in order to check and improve our products. The AMS test shows one of many examples of Textar placing great importance on safety as well as removing prejudice by demonstrating that aftermarket brake pads can be even better than OE products when dealing with original spare parts.”

TMD Friction launched its premium brake brand, Textar, to the UK market aftermarket earlier this year. The full range of products cover 99.9% of the UK car parc and includes brake pads, discs and accessories, including brake fluid, available for next day delivery. The launch of Textar passenger car provides the aftermarket with a superior braking product, complementing the long-established Textar brand dedicated to the OE sector.

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SUCCESS FOR TEXTAR BRAKE DISCS


PROMOTION ARTICLE ON BEHALF OF TMD FRICTION

Global OE friction manufacturer, TMD Friction, has put the quality and performance of its Textar brake disc coating to the test; comparing thickness, uniformity and corrosion against three competitor products as part of its benchmarking series.

TMD Friction defined 20 measuring points, including four at the contact surface of the disc top hat, and four on the visible outer surface of the disc to evaluate coating thickness and uniformity. The results showed that Textar had the thinnest coating in all measuring areas (see picture.1 & picture.2), with only a slight variation in data, indicating high uniformity.

Textar had the most even coating while proving equally resistant to corrosion when compared to its thicker-coated competitors. The test also highlighted that coated discs have equivalent break-in properties to uncoated discs.

Results revealed that thinner coating does not lead to higher corrosion, and despite having the thinnest coating among the tested products, Textar had similar results to its competitors. To determine corrosion resistance, the brake discs were sprayed with five percent saline solution in a salt spray cupboard for 96 hours.

Both coating thickness and uniformity make a real difference to brake reliability. If the coating is too thick and uneven on the contact surface of the brake disc top hat, it can have a huge impact on runout. Too much runout causes brake growl and leads to steering wheel movement and/or vibrations in the brake pedal. The thinner coating not only ensures efficient use of materials, but also brings about improved braking reliability.

Vincenzo Di Caro, development engineer at TMD Friction, said: “Coated brake discs can be used as and when you need them, without preparation. To protect from corrosion, uncoated discs are stored in oil, which must be removed from the disc before assembly.

“Coated discs don’t require oil removal, reducing workload and making the process more environmentally friendly through reducing oil waste. We recommend garages always clean the existing hub and remove corrosion before assembly so that the new brake disc can reach optimum performance.”

TMD Friction regularly carries out tests within its benchmark series to secure and develop the high quality and performance of its products. TMD Friction always chooses a balanced mix of competitors, including well-known OE and aftermarket manufacturers.

 

 

 

 

 

 

 

Picture 1: Test results for Textar (yellow) and the three competitor products at four different measuring points (P1 – P4) at the outer surface of the brake disc.

 

 

 

 

 

 

 

 

Picture 2: Test results for Textar (yellow) and the three competitor products at four different measuring points (P5 – P8) at the contact surface of the disc top hat.

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FACTORS SNAP UP TMD FRICTION’S PREMIUM TEXTAR BRAND

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FACTORS SNAP UP TMD FRICTION’S PREMIUM TEXTAR BRAND


PROMOTION ARTICLE ON BEHALF OF TEXTAR

Three new stockists have been secured following April’s launch of superior brake brand, Textar, to the UK market, developed by global OE friction manufacturer, TMD Friction.

Parts distributors, BMG, Super Spares and Direct Auto Parts now stock a full range of Textar products including brake pads and accessories, as well as brake fluid, available for next day delivery. The range of high-performance brakes is also complemented by a wide range of brake discs, including high carbon and composite discs, with the full range covering 99.9% of the UK car parc.

Textar is a global premium brand offering a selection of OE and aftermarket products with a renowned reputation for high quality, performance and endurance. This makes Textar the brand of choice for OE and aftermarket, as well as a sought-after product offering for factors and garages.

Nick Hayes, UK Sales Manager of TMD Friction, said: “Expectations were high for the launch of Textar which, I’m pleased to say, have been undoubtedly met. Along with securing three new stockists, we also have a number of factor contracts in the pipeline, that can see how the Textar passenger car brand can elevate their current product offerings. It’s an exciting time for us as a friction manufacturer and for the industry.”

Utilising cutting-edge technology, Textar brakes are precision engineered to offer maximum safety, performance and comfort. This uncompromising approach has been the ethos of the brand for more than 100 years and has led to Textar being a trusted partner to the world’s leading vehicle manufacturers. For more information on Textar please contact UK.technical@tmdfriction.co.uk.

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