The Nineteenth Hole

Which is better for rubber bike tires: a silicon compound or carbon black?

Taking into consideration cost, means of production, environmental issues, availability.

Thanks.

Well I here's a quote:
"Manufacturers mix different additives with the rubber to achieve desired traction/wear characteristics. Generally, a softer formulation will give better traction, but at the expense of more rapid wear. Rubber is normally a sort of tan color, but most tires are black. This is the result of adding carbon black to the mix. Carbon black considerably improves the durability and traction of the rubber in the tread area.

Some manufacturers substitute a silicon compound for the carbon black. These tires usually have a grey tread. Whether silicon or carbon black provides better traction is subject to dispute."

From: http://www.sheldonbrown.com/tires.html

As far as cost etc. both types tend to cost about the same. Carbon black is basically a waste material and silicon is cheap as well. As far as environmental impact, both contain only trace amounts of silicon and CB so the rubber itself is, buy far, the largest envionmental issue and is common to both. CB provides far more than color to rubber. It adds toughness and better wear charateristics to the rubber. Adding more will actually make the rubber harder and longer lasting in tire applications.

Black Carbon (BC) - NRI Master [HD]

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Bending Branches Black Pearl Carbon Canoe Paddle-48in $228.95 Bending Branches Black Pearl Carbon Canoe Paddle - The Black Pearl canoe paddle by Bending Branches has the quality craftsmanship and durability you expect from Bending Branches, but with the sleek look and strength-to-weight ratio only polished carbon can provide. The grip design that’s more comfortable than racing paddles & perfect for touring. This is a light paddle weighing in at 14 oz – a weight that won’t burden the serious touring paddler. The shaft & blade is made with aviation-grade carbon that provide incredibly high strength-to-weight ratio.The Black Pearl has a “Traditional� touring blade shape with large surface area for greater water displacement & is more durable than racing paddles.

Bending Branches Black Pearl Carbon Canoe Paddle-50in $228.95 Bending Branches Black Pearl Carbon Canoe Paddle - The Black Pearl canoe paddle by Bending Branches has the quality craftsmanship and durability you expect from Bending Branches, but with the sleek look and strength-to-weight ratio only polished carbon can provide. The grip design that’s more comfortable than racing paddles & perfect for touring. This is a light paddle weighing in at 14 oz – a weight that won’t burden the serious touring paddler. The shaft & blade is made with aviation-grade carbon that provide incredibly high strength-to-weight ratio.The Black Pearl has a “Traditional� touring blade shape with large surface area for greater water displacement & is more durable than racing paddles.

Bending Branches Black Pearl Carbon Canoe Paddle-52in $228.95 Bending Branches Black Pearl Carbon Canoe Paddle - The Black Pearl canoe paddle by Bending Branches has the quality craftsmanship and durability you expect from Bending Branches, but with the sleek look and strength-to-weight ratio only polished carbon can provide. The grip design that’s more comfortable than racing paddles & perfect for touring. This is a light paddle weighing in at 14 oz – a weight that won’t burden the serious touring paddler. The shaft & blade is made with aviation-grade carbon that provide incredibly high strength-to-weight ratio.The Black Pearl has a “Traditional� touring blade shape with large surface area for greater water displacement & is more durable than racing paddles.

Bending Branches Black Pearl Carbon Canoe Paddle-54in $228.95 Bending Branches Black Pearl Carbon Canoe Paddle - The Black Pearl canoe paddle by Bending Branches has the quality craftsmanship and durability you expect from Bending Branches, but with the sleek look and strength-to-weight ratio only polished carbon can provide. The grip design that’s more comfortable than racing paddles & perfect for touring. This is a light paddle weighing in at 14 oz – a weight that won’t burden the serious touring paddler. The shaft & blade is made with aviation-grade carbon that provide incredibly high strength-to-weight ratio.The Black Pearl has a “Traditional� touring blade shape with large surface area for greater water displacement & is more durable than racing paddles.

Molecular Model of Glucose (C6H12O6), with Black for Carbon, White for Hydrogen, and Red for Oxygen $24.99 Carol and Mike Werner Molecular Model of Glucose (C6H12O6), with Black for Carbon, White for Hydrogen, and Red for Oxygen - Photographic Print

Black Carbon, a Short-Lived Particle, is in Perpetual Motion across the Globe $19.99 Black Carbon, a Short-Lived Particle, is in Perpetual Motion across the Globe - Photographic Print

Pastel Pencils carbon black $1.68 The New Derwent Pastel Pencils are designed with a contemporary and environmentally friendly matt red barrel with silver imprint and range stripe. They have a round 8.0 mm diameter barrel with a 4.0 mm core ideal for more detailed work. New improved formulation features include: Softer texture that transfers colour to the paper quicker Better blending Better sharpening Dusty, pastel feel More balanced colour range Pencils are sold individually. Order 6 for a full box. They are also available in sets .

Bimmian CEC46MBYY Real Carbon Fiber Engine Cover E46 M3 Black Carbon Fiber Includes Recess For M Logo $321.17 Our real carbon fiber engine cover is the perfect addition to your engine compartment. This item will fit all E46 M3 engines. These replacement engine covers are different from all others on the market. This cover was selected from many samples provided by an array of carbon fiber factories. While this cover may not be the cheapest it is surely the best quality available on the market today. With carbon fiber you get exactly what you are paying for. Most of the cost related to carbon fiber items is related to the labor that goes into the part. Our carbon fiber accessories are made by craftsmen true professionals in their fields not laborers happening to be working in a carbon factory. Great craftsmanship takes time and time costs money. You will understand when you hold our part in your hands. These covers are easily instalLed with common handtools and come with complete installation instructions. Currently these are available in Black carbon fiber only. There are no plans to offer these in Silver carbon fiber.

Large Neoprene Pouch for Samsung SGH-D900 Black Carbon $9.99 This handsome neoprene pouch offers superior protection for your Samsung SGH-D900 Black Carbon without sacrificing style. A combination of premium materials and quality construction ensures maximum durability. Designed in the U.S.A! Remember - Wireless Emporium stands by the quality of our cases with an unconditional 100% SATISFACTION GUARANTEE. ORDER NOW!

Jumbo Clutch Holder & Carbon Sketch Stick carbon sketch stick $5.39 General?s Jumbo Carbon Sketch Stick combines the smoothness of graphite and the darkness of charcoal. It lays down smooth, strong, jet-black lines that are perfect for large drawings and sketchings.The stick can be purchased alone or with a Jumbo Clutch Holder. The holder allows you to use the Jumbo Carbon Sketch Stick and still keep your hands clean.Jumbo Carbon Sketch Stick measures 3/8 in. across and 3 3/4 in. long.Jumbo Clutch Holder measures 5/8 in. across and 4 1/2 in. long.

Bimmian CDP362BYY AutoCarbon Carbon Fiber Pillar Trim For E36 Coupe Black Carbon Fiber 2pcs Non Convertible $77.22 Our real carbon fiber door pillar covers provide a nice touch to your vehicle. Easily instalLed with preapplied high quality 3M tape and included adhesion promoter these pillar covers remain removable while staying attached as long as you want them to. These pillars have a special UV coating and will not yellow or crack over time. Although these are avilable in Black or Silver carbon fiber for E46 vehicles these are available in Black carbon fiber only for most other vehicles. For E36 Coupe. Black carbon fiber (2pcs). Non convertible.

Bimmian CDP87ABYY AutoCarbon Carbon Fiber Pillar Trim For E87 04 11 Black Carbon Fiber 6pcs $126.36 Our real carbon fiber door pillar covers provide a nice touch to your vehicle. Easily instalLed with preapplied high quality 3M tape and included adhesion promoter these pillar covers remain removable while staying attached as long as you want them to. These pillars have a special UV coating and will not yellow or crack over time. Although these are avilable in Black or Silver carbon fiber for E46 vehicles these are available in Black carbon fiber only for most other vehicles. For E87 04 11. Black carbon fiber (6pcs).

Bimmian CDP46CBYY AutoCarbon Carbon Fiber Pillar Trim For E46 Coupe M3 Non Convertible Black Carbon Fiber 2pcs $84.24 Our real carbon fiber door pillar covers provide a nice touch to your vehicle. Easily instalLed with preapplied high quality 3M tape and included adhesion promoter these pillar covers remain removable while staying attached as long as you want them to. These pillars have a special UV coating and will not yellow or crack over time. Although these are avilable in Black or Silver carbon fiber for E46 vehicles these are available in Black carbon fiber only for most other vehicles. For E46 Coupe and M3. Black carbon fiber (2pcs). Non convertible.

Bimmian CDPX54BYY AutoCarbon Carbon Fiber Pillar Trim For E53 X5 20002006 Black Carbon Fiber 10pcs $210.6 Our real carbon fiber door pillar covers provide a nice touch to your vehicle. Easily instalLed with preapplied high quality 3M tape and included adhesion promoter these pillar covers remain removable while staying attached as long as you want them to. These pillars have a special UV coating and will not yellow or crack over time. Although these are avilable in Black or Silver carbon fiber for E46 vehicles these are available in Black carbon fiber only for most other vehicles. For E53 X5 20002006. Black carbon fiber (10pcs).

Bimmian CDP92ABYY AutoCarbon Carbon Fiber Pillar Trim For E92 notconvertible Black Carbon Fiber 2pcs $84.24 Our real carbon fiber door pillar covers provide a nice touch to your vehicle. Easily instalLed with preapplied high quality 3M tape and included adhesion promoter these pillar covers remain removable while staying attached as long as you want them to. These pillars have a special UV coating and will not yellow or crack over time. Although these are avilable in Black or Silver carbon fiber for E46 vehicles these are available in Black carbon fiber only for most other vehicles. For E92. Black carbon fiber (2pcs). Non convertible.

Penn State Nittany Lions Black Carbon Fiber Pen $14.95 Represent your favorite school in a classy way with this Carbon Fiber pen!

Bimmian CFG46MBYY AutoCarbon Carbon Fiber Grille Side Grille Pair For E46 M3 200106 Black Carbon Fiber $279.05 Our real carbon fiber grilles are an excellent addition to your vehicle giving it the sporty look that only real high quality carbon fiber can. These items are ENTIRE GRILLE REPLACEMENTS not overlays. These grilles have no chrome for the sportiest look. The slats are perfectly painted a matte Black color and the surrounds are 100 real carbon fiber. These grilles are different from all others on the market. These grilles are made by true carbon fiber craftsmen and are made from only top quality materials using the best production methods. There is a very consistent weave on these parts combined with professional clearcoating free of drips or blobs. Dont be fooLed by cheaper China made imitations which may have inferior clipping mechanisms which do not attach the grille securely to your car. And remember with carbon fiber the quality you get is exactly what you pay for This is a premium accessory for your premium automobile. Currently these are available in Black carbon fiber only. There are no plans to offer these in Silver carbon fiber. In order to install our carbon fiber grilles you must remove your existing grilles which is easily done in minutes with the provided instructions. If necessary this item can be removed without damage to your vehicle. Side Grille Pair for E46 M3 200106. Black carbon fiber.

Bimmian CFG604BYY AutoCarbon Carbon Fiber Grille Front Grille Pair For E60 2004Plus M5 Black Carbon Fiber $279.05 Our real carbon fiber grilles are an excellent addition to your vehicle giving it the sporty look that only real high quality carbon fiber can. These items are ENTIRE GRILLE REPLACEMENTS not overlays. These grilles have no chrome for the sportiest look. The slats are perfectly painted a matte Black color and the surrounds are 100 real carbon fiber. These grilles are different from all others on the market. These grilles are made by true carbon fiber craftsmen and are made from only top quality materials using the best production methods. There is a very consistent weave on these parts combined with professional clearcoating free of drips or blobs. Dont be fooLed by cheaper China made imitations which may have inferior clipping mechanisms which do not attach the grille securely to your car. And remember with carbon fiber the quality you get is exactly what you pay for This is a premium accessory for your premium automobile. Currently these are available in Black carbon fiber only. There are no plans to offer these in Silver carbon fiber. In order to install our carbon fiber grilles you must remove your existing grilles which is easily done in minutes with the provided instructions. If necessary this item can be removed without damage to your vehicle. Front Grille Pair for E60 2004+ and M5. Black carbon fiber.

Bimmian CFG87ABYY AutoCarbon Carbon Fiber Grille Front Grille Pair For E87 Black Carbon Fiber $279.05 Our real carbon fiber grilles are an excellent addition to your vehicle giving it the sporty look that only real high quality carbon fiber can. These items are ENTIRE GRILLE REPLACEMENTS not overlays. These grilles have no chrome for the sportiest look. The slats are perfectly painted a matte Black color and the surrounds are 100 real carbon fiber. These grilles are different from all others on the market. These grilles are made by true carbon fiber craftsmen and are made from only top quality materials using the best production methods. There is a very consistent weave on these parts combined with professional clearcoating free of drips or blobs. Dont be fooLed by cheaper China made imitations which may have inferior clipping mechanisms which do not attach the grille securely to your car. And remember with carbon fiber the quality you get is exactly what you pay for This is a premium accessory for your premium automobile. Currently these are available in Black carbon fiber only. There are no plans to offer these in Silver carbon fiber. In order to install our carbon fiber grilles you must remove your existing grilles which is easily done in minutes with the provided instructions. If necessary this item can be removed without damage to your vehicle. Front Grille Pair for E87. Black carbon fiber.

Bimmian CFG462BYY AutoCarbon Carbon Fiber Grille Front Grille Pair For E46 Sedan 2002 up Black Carbon Fiber $279.05 Our real carbon fiber grilles are an excellent addition to your vehicle giving it the sporty look that only real high quality carbon fiber can. These items are ENTIRE GRILLE REPLACEMENTS not overlays. These grilles have no chrome for the sportiest look. The slats are perfectly painted a matte Black color and the surrounds are 100 real carbon fiber. These grilles are different from all others on the market. These grilles are made by true carbon fiber craftsmen and are made from only top quality materials using the best production methods. There is a very consistent weave on these parts combined with professional clearcoating free of drips or blobs. Dont be fooLed by cheaper China made imitations which may have inferior clipping mechanisms which do not attach the grille securely to your car. And remember with carbon fiber the quality you get is exactly what you pay for This is a premium accessory for your premium automobile. Currently these are available in Black carbon fiber only. There are no plans to offer these in Silver carbon fiber. In order to install our carbon fiber grilles you must remove your existing grilles which is easily done in minutes with the provided instructions. If necessary this item can be removed without damage to your vehicle. Front Grille Pair for E46 Sedan 2002 and up. Black carbon fiber.

Bimmian CFG469BYY AutoCarbon Carbon Fiber Grille Front Grille Pair For E46 Sedan 19992001 Black Carbon Fiber $279.05 Our real carbon fiber grilles are an excellent addition to your vehicle giving it the sporty look that only real high quality carbon fiber can. These items are ENTIRE GRILLE REPLACEMENTS not overlays. These grilles have no chrome for the sportiest look. The slats are perfectly painted a matte Black color and the surrounds are 100 real carbon fiber. These grilles are different from all others on the market. These grilles are made by true carbon fiber craftsmen and are made from only top quality materials using the best production methods. There is a very consistent weave on these parts combined with professional clearcoating free of drips or blobs. Dont be fooLed by cheaper China made imitations which may have inferior clipping mechanisms which do not attach the grille securely to your car. And remember with carbon fiber the quality you get is exactly what you pay for This is a premium accessory for your premium automobile. Currently these are available in Black carbon fiber only. There are no plans to offer these in Silver carbon fiber. In order to install our carbon fiber grilles you must remove your existing grilles which is easily done in minutes with the provided instructions. If necessary this item can be removed without damage to your vehicle. Front Grille Pair for E46 Sedan 19992001. Black carbon fiber.

Marineland Black Diamond Activated Carbon 5 oz $5.79 Marineland Black Diamond Activated Carbon Improve your water's quality and clarity. Black Diamond Premium Activated Carbon eliminates discoloration, odors, and impurities...and keeps on doing it long after other carbons quit. Heat-activated bituminous coal-based Black Diamond granules are specially sized and far more efficient than inferior coconut, wood or peat-based carbons. Premium Black Diamond works as much as twice as fast as the competition. Features: Chemical filter media that enhances overall filtration. This maintains proper water levels and quality, keeping fish healthy Can be used for freshwater or marine filtration Granules are specially sized to protect filter impellers Contains less than 2% moisture, other activated carbons contain up to 60% water weight Phosphate free, slowing down algae growth

Marineland Black Diamond Activated Carbon 10 oz $9.99 Marineland Black Diamond Activated Carbon Improve your water's quality and clarity. Black Diamond Premium Activated Carbon eliminates discoloration, odors, and impurities...and keeps on doing it long after other carbons quit. Heat-activated bituminous coal-based Black Diamond granules are specially sized and far more efficient than inferior coconut, wood or peat-based carbons. Premium Black Diamond works as much as twice as fast as the competition. Features: Chemical filter media that enhances overall filtration. This maintains proper water levels and quality, keeping fish healthy Can be used for freshwater or marine filtration Granules are specially sized to protect filter impellers Contains less than 2% moisture, other activated carbons contain up to 60% water weight Phosphate free, slowing down algae growth

Marineland Black Diamond Activated Carbon 22 oz $15.99 Marineland Black Diamond Activated Carbon Improve your water's quality and clarity. Black Diamond Premium Activated Carbon eliminates discoloration, odors, and impurities...and keeps on doing it long after other carbons quit. Heat-activated bituminous coal-based Black Diamond granules are specially sized and far more efficient than inferior coconut, wood or peat-based carbons. Premium Black Diamond works as much as twice as fast as the competition. Features: Chemical filter media that enhances overall filtration. This maintains proper water levels and quality, keeping fish healthy Can be used for freshwater or marine filtration Granules are specially sized to protect filter impellers Contains less than 2% moisture, other activated carbons contain up to 60% water weight Phosphate free, slowing down algae growth

Marineland Black Diamond Activated Carbon 40 oz $23.99 Marineland Black Diamond Activated Carbon Improve your water's quality and clarity. Black Diamond Premium Activated Carbon eliminates discoloration, odors, and impurities...and keeps on doing it long after other carbons quit. Heat-activated bituminous coal-based Black Diamond granules are specially sized and far more efficient than inferior coconut, wood or peat-based carbons. Premium Black Diamond works as much as twice as fast as the competition. Features: Chemical filter media that enhances overall filtration. This maintains proper water levels and quality, keeping fish healthy Can be used for freshwater or marine filtration Granules are specially sized to protect filter impellers Contains less than 2% moisture, other activated carbons contain up to 60% water weight Phosphate free, slowing down algae growth