For more than 35 years, our engineers have been providing precise thermoplastic solutions for the automotive industry, ranging from high volume engineered materials to high tech specialty compounds. We support the industry’s commitment to sustainability by formulating thermoplastic compounds that make good sense for electric and autonomous vehicles, as well as their charging stations.

Because electric and autonomous vehicles have different requirements than internal combustion engine vehicles, the types of materials used can be very different than those that have been used historically… so we have a variety of options! Our materials are specially formulated to enhance and improve parts that are used in electric vehicles, autonomous vehicles, and charging stations, with benefits such as:

  • Strength

  • Performance

  • Lighter weight

  • Flame retardancy

  • Reduced VOCs

  • Better efficiency

  • Cost reduction

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Click on any of the hot spots shown above to learn more about the technologies we offer for your applications. If you have any questions or would like additional information, please contact your local RTP Company representative or call us at (507) 454-6900.

RTP Company Technologies

Our Electromagnetic Interference (EMI) Shielding Compounds offer reliability and value in a wide range of applications where electromagnetic compatibility is required. Shielding provides protection for sensitive components from incoming EMI and/or prevents excessive emissions of EMI to other susceptible equipment.

Typically, EMI shielding compounds utilize stainless steel fiber or nickel-coated carbon fiber in a thermoplastic matrix to provide the necessary shielding. These compounds can also incorporate flame retardant additives, wear additives, reinforcements, and colorants in a single custom material solution to meet the requirements of your application.

Housings for radar boxes, GPS module enclosures, sensors, and cameras require EMI shielding to prevent signals from being mixed or interrupted. EMI Compounds can provide this protection and help to ensure the proper function of these sensitive components.


Electrically conductive or EMI absorbing PP, PA, PBT,PC/ABS

Key Characteristics

Consistent EMI shielding effectiveness up to 90+ dB

  • Integrated, molded-in shielding properties

  • Metal-to-plastic weight savings

  • Cost reduction

Typical Applications
  • Motors

  • Sensor and Camera housings

  • Control modules

  • Internal charging station parts requiring electrical current management

Property Comparison: EMI Shielding Compounds Shielding Effectiveness (SE) @ 2mm Thickness

* EMI Test Method: ASTM D4935

Technology A* Technology B*
High SE High SE
Ductile High Modulus
Unreinforced Fiber Reinforced
Technology C* Technology D*
Moderate SE Moderate SE
Ductile High Modulus
Unreinforced Fiber Reinforced

Technologies A-D are available in a wide variety of base polymers, such as PP, PBT, PA66, PC, ABS, and more.

Although flammability is not often a concern with conventional gas powered vehicles, electrical and autonomous vehicles do require a fresh approach to passenger safety. Most thermoplastics utilized in the automotive industry today are inherently flammable, and therefore require an additive package to meet industry flame standards such as UL94 V-0; in addition, they must function well in the end application.

Batteries and their components benefit from Flame Retardant Compounds to help meet safety regulations and improve passenger safety.



Key Characteristics

HB, V1, V2, V0, 5VB, and 5VA

  • Risk mitigation

  • Colorable (safety orange, for example)

Typical Applications
  • LI Ion batteries

  • High voltage connectors

  • Parts with rating requirements

Battery Components: Housings, Frames, Plates, Trays
Formula Description UL 94 Flammability Tensile Strength (MPa) Flexural Modulus (GPa) Charpy Notched Impact (kJ/m2) HDT @ 1.82 MPa (°C) Density Filler Content
RTP 199 X 151875 A PP – Unfilled – FR V-0 25 1.1 5.8 52 1.00 N/A
RTP 399 X 143586 PC – Transparent – Unfilled – FR V-0/5VA 69 2.7 12.2 125 1.24 N/A
RTP 199 X 156119 B PP – Mineral – FR V-0/5VA 27 2.9 3 70 1.35 20
RTP 199 X 135008 A PP – Glass Fiber – FR V-0/5VA 80 7.2 8.2 145 1.50 30
RTP 2099 X 150722 A PA Alloy – Glass Fiber – FR V-0/5VA 131 9.3 17 188 1.56 30
RTP 299 K X 138337 C PARA – Glass Fiber – FR V-0/5VA 193 15.9 11.5 210 1.57 40
Electrical Components: High Voltage Connectors, Terminal Covers, Telecommunication Housings
Formula Description UL 94 Flammability Tensile Strength (MPa) Flexural Modulus (GPa) Charpy Notched Impact (kJ/m2) HDT @ 1.82 MPa (°C) Density Filler Content
RTP 199 X 137777 D PP – Unfilled – FR V-0 31 1.4 2.3 55 1.02 N/A
RTP 199 X 134952 B PP – Mineral Filled – FR V-0/5VA 22 2.2 4.5 70 1.31 15
RTP 1099 X 149490 PBT – Glass Fiber – FR – Low Warp V-0/5VA 134 9.5 8.8 204 1.63 30
RTP 1099 X 156121 A PBT – Glass Fiber – FR V-0/5VA 136 9.7 8 210 1.63 30
Outdoor Components: Connectors, In Cable Circuit Breakers/Control Boxes, Charging Station Housings
Formula Description UL 94 Flammability Tensile Strength (MPa) Flexural Modulus (GPa) Charpy Notched Impact (kJ/m2) HDT @ 1.82 MPa (°C) Density Filler Content
RTP 199 X 138253 A PP- Unfilled UV – FR V-0 24 1.2 47 52 1.04 N/A
RTP 2099 X 143976 D PC/PBT – Unfilled – UV – FR V-0/5VA 48 2.1 48 88 1.29 N/A
Underhood Components: Engine Covers, Electrical Components
Formula Description UL 94 Flammability Tensile Strength (MPa) Flexural Modulus (GPa) Charpy Notched Impact (kJ/m2) HDT @ 1.82 MPa (°C) Density Filler Content
RTP 299 X 150941 A PA 66 – Glass Fiber – FR V-0 125 7.0 6.5 235 1.56 15
RTP 299 A X 157486 A PA 6 – Glass Fiber – FR V-0 125 7.0 15 200 1.54 15
RTP 299 X 156120 A PA 66 – Glass Fiber – FR V-0 150 9.5 6.2 245 1.65 25

Our Structural Compounds provide solutions in applications requiring excellent mechanical and/or thermal performance.

Short Glass Fiber (SGF) Compounds – chopped glass fiber provides strength and stiffness to our SGF compounds, which provide good, general purpose reinforcement.

Very Long Fiber (VLF) Compounds – in addition to the improvement in strength and stiffness versus SGF Compounds, VLF Compounds provide improved impact strength and are commonly used for metal replacement.

Carbon Fiber (CF) Compounds – our CF Compounds provide tremendous stiffness without adding significant weight to a vehicle. These high end materials, which are commonly used in aerospace, are finding broader use for lightweighting in electric and autonomous vehicles.

The “frunk”, or storage space under the front hood of an electric or autonomous vehicle, can be made from VLF Compounds for excellent durability and impact.


Long Glass/Short Glass Fiber PP, PA, PBT; Carbon Fiber (CF) Compounds; ASA Alloys

Key Characteristics

Provide outstanding impact resistance, creep resistance, and aesthetic value

  • Dimensional stability

  • Durability

  • Excellent for metal replacement

  • Reduce part weight