PowerFill is a nickel coated graphitized fiber bundle having a random irregular shape as seen below. The base material is composed of graphite fiber/graphitized resin bundles commonly known in industry as WonderFill. The base material is 99.999% pure graphite having a 1.76 g/cc material density. These fiber bundles are uniformly coated with a thin layer of nickel (nominally 60% by weight) to form a cost effective polymer additive suitable for EMI / RFI shielding applications and high thermal/electrical conductivity applications.

The nickel coating adheres to the graphite surface without voids and is uniform throughout the coating thickness so shielding effectiveness is maximized. After nickel coating, each particle is autonomous and the result is a free flowing, easy to process powder.

PowerFill-Nickel Coated Graphite Fiber Powder Polymer Additive for EMI / RFI Shielding and Low Resistivity / High Conductivity Applications

N40 N300

Two standard grades of PowerFill are available. The nickel-coated graphite fiber bundles have aspect ratios varying from 1:1 to 500:1. PowerFill N40 has a low aspect ratio with bulk density of 1550g/l, while the N300 has a higher aspect ratio with some longer particles being approximately 500:1 and a bulk density of 1650g/l. No sizings are applied to nickel surface.

Powerfill N300 has been compounded at 40% by weight addition in both thermoplastic polymers and elastomers to yield higher conductivity than competitive additives. The N40 product has also been compounded as high as 65% weight addition in nylon 6 to create a much more conductive compound. Competitive additives are limited in their loading to typically 40% or less due to processing parameters. All GES materials process effortlessly to allow higher production rates and loading percentages as compared to alternative additives.

Other PowerFill particle size distributions can be specified; as well other coating metals (copper, silver) can be considered.

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Graphite Engineered Solutions LLC139 Tibet Rd.

Columbus, Ohio 43202Phone: 888-607-2377

Fax: 888-774-0579Web: http://www.graphiteengineeredsolutions.com

Graphite Engineered Solutions LLC makes no warranty or claim to the fitness of these materials for specific applications. Each customer is responsible for individual evaluation and specific use and handling procedures. These materials are offered with an SDS which should be read and understood before use. Graphite Engineered Solutions LLC reserves the right to update and or alter the information contained within this and all documentation used in conjunction with the manufacture and marketing of WonderFill and PowerFill. All grades of WonderFill are Classified EAR99 which is a classification for an item. It indicates that a particular item is subject to the Export Administration Regulations (EAR), but not listed with a specific Export Control Classification Number (ECCN) on the Commerce Control List (CCL). While the classification describes the item, the authorization for shipment of that item may change, depending on the transaction.