Most engineered thermoplastics provide high levels of electrical insulation and have negligible “immunity” properties for EMI (Electromagnetic Interference). Electrically conductive plastics use special modifiers to provide significant immunity for sensitive electronics (from incoming EMI) while also preventing emissions of EMI to other susceptible components.
Product designers and engineers are discovering the unique advantages of electrically conductive plastics compared to traditional metals – such as weight reduction, cost reductions, elimination of secondary manufacturing steps – all resulting in leaner supply chains and better products.
Parker Chomerics PREMIERTM ‘single pellet’ electrically conductive plastic pellets offer superior performance and consistency when compared to many conductive plastic materials. The primary advantage of PREMIER is the use of long-fiber pultrusion to ensure uniform amounts of conductive filler are in each pellet. Our single pellet materials are superior for filler consistency compared to any multi-pellet dry mixes.
Our PREMIER electrically conductive plastics are manufactured as single pellet formulations, which ensures the most reliable, consistent shielding of molded products.
Single pellet or homogeneous products are far superior to multi-pellet blends (also called dry blends or salt-and-pepper blends) that use pellets from different compounds randomly mixed together.
Conductive plastic single pellet performance benefits are easily demonstrated when shielding performance is compared between dry blend materials and PREMIER single pellets in capability studies. Our single pellet materials prevent the risk of poor EMI shielding – and this avoids potential failure in the field.
Single electrically conductive fiber in every pellet leads to consistent EMI shielding performance.
Non-homogenous mix of conductive slugs and plastic pellets leads to uneven EMI shielding performance.
Dry blends (that use multiple pellet mixtures) have packaging limitations – they are sold only in smaller bags or containers, and carry the risk of the heavier pellets settling during transportation.
When settling occurs, it results in inconsistency in shielding and mechanical performance. Large volume programs can save significant labor hours by using single pellet products such as PREMIER.
Our conductive plastics have a density of 1.2 to 1.4 g/cc, which is nearly one-half the density of aluminum (2.7 g/cc).
Conductive plastics offer lightweighting capability by reducing material density. In addition, conversion to plastic drives the reduction of wall thickness (by design modification), parts can sometimes weigh 75% less than conventional metal technologies.
PBT is known for its excellent chemical resistance thereby making it an ideal material for environments that have exposure to automotive type fluids (gasoline, motor oil, glycol 50/50 mix, brake and transmission fluids).
PEI (aka “Ultem”) polymer material is UL V-0 rated down to 1.8 mm wall thickness and has a special blend of conductive elements. This material meets the Boeing 7238 smoke density rating of MAX 110 Ds with 3.0 mm @ 4 minutes.
Hydrolysis Resistant
Flame Retardant
Military Grade
Provides up to 85° C continuous use temperature rating and is the most cost-effective grade of our Nickel-Plated carbon fiber and granule filled polymers. A230-HTHF and A240-HTHF versions use “HF” (Hybrid Filler) with nickel-plated granular graphite to improve cost and minimize post-mold warpage.
General Purpose
General Purpose
General Purpose
Provides up to 105° C continuous use temperature rating and the lowest possible surface resistivity for excellent grounding properties. Filled with nickel-plated carbon fiber exclusively to maximize conductive properties of the molded product.
Super Tough and Elevated Temperature
Super Tough and Elevated Temperature
Super Tough and Elevated Temperature
UL V-0 rated to 1.5 millimeters wall thickness and provides up to 70° C continuous use. Uses Nickel-Plated carbon fiber and granular fillers. Moderate and high filled versions use “HF” (Hybrid Filler) with nickel-plated granular graphite to improve cost and minimize post-mold warpage.
Flame Retardant
Flame Retardant
Flame Retardant
Our experienced engineers are available to help with optimal material selection and manufacturing strategies for each project. This includes support to ensure properly matched EMI gaskets, product design strategies, tooling, and other needs.
Test boxes are available as 100mm x 140mm x 85mm in the below materials and give engineers the ability to evaluate our electrically conductive plastic materials in a representative format similar to their end application. All test boxes come with a gasket and are ready for your components.
Parker Chomerics’ manufacturing operations span the globe, allowing us to serve you locally no matter where you are. We understand your unique needs and provide personalized solutions that cater to your specific requirements.