What is grafoil material?
GraFoil flexible graphite is a distinctive material with all the essential characteristics of natural graphite: superior thermal stability, thermal conductivity, natural lubricity, and chemical resistance. GraFoil material provides a tight seal, even after repeated exposure to the harshest environments.
Is grafoil the same as graphite?
Due to its flexible texture, it is commonly called flexible graphite. Flexible graphite is a generic commercial term. The name Grafoil® is the original brand name of flexible graphite owned by GrafTech, a company founded in 1886.
Is grafoil conductive?
Like its forerunner, pyrolytic graphite, GRAFOIL flexible graphite is resistant to heat, has no water of crystallization, is naturally lubricious, is chemically inert, and is an excellent conductor of heat and electricity.
What is flexible graphite?
Flexible graphite – also known as expanded graphite or exfoliated graphite – is produced from purified natural graphite flakes. In the manufacturing process the flakes are mixed with a highly oxidizing acid to produce graphite intercalation compounds. These are expanded by a sudden application of high temperature.
What is grafoil tape?
Grafoil® Flexible Graphite begins as graphite flake which is chemically expanded and then rolled into sheets. Those Grafoil® sheets are then stripped into tape or rolled and cut into gasket material (which we cut gaskets from) or packing.
What is the best head gasket material?
Copper gaskets are extremely durable which makes them perfect for high performance engines. Copper transfers heat evenly throughout the entire gasket, and this reduces the effects of warping. Copper is also good at conforming to rougher, damaged surfaces for a complete seal.
Is grafoil electrically conductive?
What is flexible graphite made of?
Flexible graphite is made from natural graphite flakes. Following chemical preparation with acids and oxidizing agents, the natural graphite is expanded by a violent heat treatment procedure. Self-bonded by a rolling operation, the expanded graphite particles form a continuous strip, without the addition of a binder.
Are copper gaskets better?
Conductivity – Gaskets take a lot of heat, which is why copper is the perfect material. Copper is the standard by which all other conductors are measured; therefore a copper gasket provides superior thermal conductivity, acting to stabilise head and block temperatures.
Is graphite flexible or brittle?
Graphite is naturally a very brittle compound and cannot be used as a structural material on its own due to its sheer planes (although it is often used to reinforce steel).
What head gasket material is best?
While steel is the most common material in which head gaskets are made, other gaskets are made of rubber, silicone, cork, felt, nitrile, fiberglass and Teflon. Fiberglass is often preferred because of its ability to withstand excessive pressure.
Can graphite break glass?
No, graphite cannot scratch glass. Graphite cannot scratch glass because it is a much weaker material than glass.
What is the use of graphite sheet?
Natural graphite sheet (NGS) is compressible, porous, electrically and thermally conductive material that shows a potential to be used in fuel cells, flow batteries, electronics cooling systems, supercapacitors, adsorption air conditioning, and heat exchangers.
How are grafoil® sheets made?
Those Grafoil® sheetsare then stripped into tape or rolled and cut into gasket material (which we cut gaskets from) or packing. The tape form is often used to make die formed rings buy wrapping the Grafoil® around a mandrel and then forming it with a die.
What is grafoil® flexible graphite?
Grafoil was originally a trademark of UNION CARBIDE CORPORATION. Today the that trademark is owned by Neograf Solutions, LLC.l. To be assured of a high quality product, we recommend Grafoil® Flexible Graphite. Flexible graphite is made using sulfuric or nucleic acid to expand powdered graphite.
What grade of grafoil do you use?
Grafoil® is manufactured using the worlds highest purity graphite, and nucleic acid to keep the sulfur content low. Common grades include GTA, GTB, GHR, GHE, and GHL, If you want the best specify Grafoil®. Custom box sizes are available, call 714-593-9780 for pricing and availbility.
Is grafoil a trademark or registered trademark?
Grafoil was originally a trademark of UNION CARBIDE CORPORATION. Today the that trademark is owned by Neograf Solutions, LLC.l. To be assured of a high quality product, we recommend Grafoil ® Flexible Graphite.