Dupont PBT SK645FR NC010 | Solving the three main pain points of electrical enclosures

01 | Are you encountering these tricky problems when selecting materials?

  ・Deformation and deterioration of the plastic housing when the equipment is overheated?
  ・Do you need a highly rigid structure, but are worried about the flame retardant properties?
  ・In precision machining, thermal expansion leads to excessive dimensions?
  ・Material electrical performance failure in a long term charged environment?

These are four common pain points in the design of electrical components, and DuPont PBT SK645FR NC010, a flame-retardant reinforced PBT material designed for high-performance electrical components, is a precise response to these problems.

Pain point 1: Insufficient heat resistance, structural deformation?

Dupont SK645FR NC010 adopts a 30% glass fiber reinforced formula, with a bending strength of 215 MPa and a tensile modulus of 11,000 MPa, presenting extremely high rigidity. During the injection molding process, the dimensional control is precise, and the shrinkage rate is extremely low (only 0.4% in the flow direction and 1.3% in the vertical direction). Even for complex structures, it can achieve high repeatability accuracy and structural stability, and is not afraid of the deformation trouble caused by thermal expansion and contraction.

Pain Point 2: Is it difficult to pass the flame retardant test and obtain the certification?

This material uses highly efficient halogen flame retardant additives and achieves all V-0 grades in UL94 tests at thicknesses ranging from 0.75 to 6.0mm. Combined with a hot wire temperature of 960°C and an oxygen index of 31%, it poses no pressure in resisting flame risks. It is suitable for use in electrical connectors, modules, switches, battery packs and other occasions with strict flame retardant requirements.

Pain point 3: Thermal deformation, causing precision errors?

SK645FR NC010 still performs stably at high temperatures. Its heat distortion temperature is as high as 220°C, and the Vicat softening temperature is 212° C. Combined with a low linear expansion coefficient and a stable glass fiber structure, it is not prone to bending or lifting at the edges even during long-term operation, significantly reducing the rework rate and mold errors.

Pain Point 4: Insulation failure, potential leakage hazard?

It has all the electrical performance you need. The volume resistance is as high as 1E15 Ω·cm, the insulation strength reaches 39 KV/mm, and the dielectric constant is only 3.8 (1MHz). It has also passed the UL746C outdoor f2 certification, providing reliable insulation protection even under wind and sun exposure.

Most suitable for these occasions:

Modular circuit breakers, electric energy metering enclosures
Outdoor monitoring equipment and structural components of charging piles
Electric vehicle BMS, battery pack end covers
Structural components of high-temperature industrial control equipment

02 | Material overview: Precise control of technical details

SK645FR NC010 adopts a 30% glass fiber reinforced system and is combined with halogen-based flame retardants. It not only achieves the full-thickness V-0 grade in the UL94 test, but also maintains excellent flame retardant performance even at a thickness of up to 6mm. Furthermore, its various electrical insulation properties, such as a volume resistance of 10¹⁴ Ω·cm and an insulation strength of 28KV/mm, fully demonstrate its stable and reliable protective capability in electronic components.

03 | Technical Parameters: Key Performance Indicators Precision Presentation

04 | Application field: The preferred innovative practice of PBT material

New energy vehicles: Applicable to charging interfaces, on-board power modules, connector housings, etc., meeting both electrical safety and structural strength requirements.

Industrial automation equipment: It can be used for heat-resistant and highly flame-retardant components such as relays, distribution boxes, and PCB brackets.

Household appliances: such as the base of an electric iron and the power switch part, require high temperature resistance and long-term insulation performance.

5G communication components: Applicable to the shells of optical fiber transceivers and the structural skeletons of high-frequency modules.

05 | Get in touch with us

If you are looking for a PBT material for injection molding that can withstand high temperatures, be V-0 flame-retardant and have excellent dimensional stability, then DuPont SK645FR NC010 would be a solution worthy of in-depth evaluation.

If you need more technical materials, sample support or application suggestions, please feel free to contact us at any time. Click the contact button on the right side of the page, and our engineering team will provide you with service and support as soon as possible.

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