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  • PC 121R-21051 | Demolding PC Plastic Material for Precision
  • PC 121R-21051 | Demolding PC Plastic Material for Precision
  • PC 121R-21051 | Demolding PC Plastic Material for Precision
  • PC 121R-21051 | Demolding PC Plastic Material for Precision
  • PC 121R-21051 | Demolding PC Plastic Material for Precision
  • PC 121R-21051 | Demolding PC Plastic Material for Precision

PC 121R-21051 | Demolding PC Plastic Material for Precision

PC 121R-21051 is a halogen-free demolding-grade pc plastic material ideal for complex precision parts, offering easy mold release, excellent dimensional stability, and strong thermal and electrical properties. Suited for electronics and home appliances.

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  • Product Struction

What is PC Plastic Material

 

In the field of high-precision injection molding, material demoulding performance, dimensional stability and environmental compliance are becoming important criteria for parts manufacturers to measure pc plastic material. PC 121R-21051 is an engineering-grade polycarbonate material that was born in response to this trend. It is not just "another PC", but a non-halogenated demoulding PC plastic material optimized for complex structural parts. It has multiple advantages such as self-demolding, thermal stability, strong electrical performance, and complete certification.

PC 121R-21051

 

01 | Why choose PC 121R-21051?

 

✔ Self-contained demoulding agent, optimized for complex injection molding structures

Compared with traditional PC plastic materials, the biggest highlight of PC 121R-21051 is its "self-contained demoulding properties", which can achieve smooth demoulding even in complex injection molded parts (such as micro buckles, guide rails, gear components, etc.), reduce mold wear, reduce defective rates, and shorten production cycles.

✔ Non-halogen formula, meeting global environmental regulations

PC plastic material adopts a completely non-halogenated environmentally friendly formula, without the need to add flame retardants or release agents, and is easier to meet international standards such as EU RoHS, REACH, California 65, UL94 HB, and is particularly suitable for export electronics, home appliances, electrical components and other applications.

✔ Balance in thermal, electrical and impact performance

Although it is positioned for demolding optimization, PC 121R-21051 plastic material still maintains excellent performance in key indicators such as thermal deformation, electrical insulation, and low-temperature impact toughness, providing stable and reliable long-term performance guarantees for parts, and maintaining structural strength and safety even in complex environments.

PC plastic material data sheet

ULConditionStandardValueUnit
CTIIEC 601122PLC
HVTRUL 746A4PLC
Volume ResistivityASTM D2571E+16Ω.cm
Dimensional StabilityUL7460.0%
Dielectric StrengthASTM D14931KV/mm
Optical performanceConditionStandardValueUnit
Refractive IndexISO 4891.586
Transmittance2540μmASTM D100388~90%
Mechanical behaviorConditionStandardValueUnit
ElongationYield 50mm/minISO 5276%
ElongationBreak 50mm/minISO 527100%
Flexural Modulus2.0mm/minISO 1782300MPa
Izod Un-notch Impact23°C 3.0mmISO 180NBkJ/m²
Izod Un-notch Impact-30°C 3.0mmISO 180NBkJ/m²
Tensile StrengthBreak 50mm/minISO 52765MPa
Tensile StrengthYield 50mm/minISO 52763MPa
Tensile Modulus1.0mm/minISO 5272350MPa
Charpy Un-notch Impact23°C 3.0mmISO 179NBkJ/m²
Charpy Un-notch Impact-30°C 3.0mmISO 179NBkJ/m²
Charpy Notch Impact23°CISO 17935kJ/m²
ThermalConditionStandardValueUnit
Heat Conductivity CoefficientISO 83020.2W/(m·°C)
HDT0.45MPa 4.0mmISO 75133°C
HDT1.8MPa 4.0mmISO 75122°C
Vicat Softening Temperature50°C/hr 50NISO 306140°C
Vicat Softening Temperature120°C/hr 50NISO 306141°C
Physical propertyConditionStandardValueUnit
Water Absorption23°C SaturationISO 620.35%
Water Absorption23°C 50RHISO 620.15%
ShrinkageFlowINTERNAL METHOD0.5~0.7%
DensityISO 11831.2g/cm³
Melt Index300°C 1.2kgISO 113321cm³/10min
Electrical propertiesConditionStandardValueUnit
Dielectric Constant1MHzIEC 602502.7
Dielectric Constant50/60HzIEC 602502.7
Volume ResistivityIEC 600931E+15Ω.cm
Dissipation Factor1MHzIEC 602500.01
Dissipation Factor50/60HzIEC 602500.001
Surface ResistivityIEC 600931E+15Ω
HardnessConditionStandardValueUnit
Ball Indentation HardnessH358/30ISO 203995MPa
FlammabilityConditionStandardValueUnit
GWFI1mmIEC 60695850°C

 

02 | Application scenario: When traditional PC plastic material encounters extreme structural challenges

 

When facing the following types of products, the advantages of PC 121R-21051 are particularly prominent:

  ・Complex structure: electronic connectors, snap-on housings, small component housings

  ・Mold precision: mirror-finished high-gloss injection molding parts, precision positioning components, hidden buttons

  ・High production line beats: home appliance automation injection molding, 3C small parts continuous production

  ・High certification requirements: electrical and consumer products exported to North America and the EU market

For these working conditions, traditional PCs are often difficult to demold, have too many burrs, and are unstable in thermal shock, while PC 121R-21051 provides full support in terms of "precision + fast + stable + compliance".

 

03 | Multiple certifications and environmental compliance, helping global applications

 

PC 121R-21051 meets multiple international standard tests:

  ・UL 94 fire rating HB

  ・IEC, ISO and other mechanical, electrical, thermal specifications

  ・Limiting oxygen index reaches 25%, with certain flame retardant properties

For customers who need to pass the global certification system (such as electronic and electrical products exported to Europe and the United States), this PC plastic material provides a good compliance basis.

 

04 | Market trends and international procurement suggestions

 

The current global plastic industry is moving towards high added value, functional complexity and sustainable development. Small electronic modules, sensor housings, lightweight home appliance parts, smart wear connectors, etc. have put forward higher requirements for materials such as light weight, high strength, environmental protection, and easy demolding.

PC 121R-21051 just follows this trend and fills the gap in the "non-halogenated + easy demolding" formula in mid-to-high-end injection molding PC plastic materials.

As a trader of engineering plastic raw materials with 24 years of global supply experience, Juyuan can stably provide PC 121R-21051 spot or futures bulk sales, support customized packaging, technical consultation and multilingual services, and help customers reduce procurement risks and improve processing efficiency.

 

05 | FAQ: Questions you may be concerned about PC 121R-21051

 

Q1: Which traditional PC grades can PC 121R-21051 replace?

A1: It can be used as an environmentally friendly upgraded version of traditional flame-retardant PC or ordinary injection-grade PC, especially suitable for replacing the formula with added external release agent to reduce formula fluctuations and processing difficulties.

Q2: Can this PC plastic material be used for medical or food contact?

A2: The current version does not specifically mark medical/food certification, but we can recommend alternative materials with relevant certifications for you.

Q3: What services can Juyuan provide?

A3: We provide small batch samples, global delivery, technical support, certificate documents, sea freight consolidation services, etc. to meet the diverse needs of start-up projects and mature production.

 

06 | Why choose Juyuan to supply PC plastic materials?

 

As an international engineering plastics trader with 24 years of experience, Juyuan not only provides plastic particles, but also helps you reduce the cost of trial and error and improve project efficiency.

🧩 Stable supply channels, inventory supports trial orders and bulk

We have long-term cooperation with leading petrochemical groups in the Middle East, Japan, South Korea, Southeast Asia, etc. to ensure original channels, consistent specifications, and delivery guarantees, and provide small batch fast delivery trial materials services for the initial stage of the project.

🔍 Technical service support to help fast material selection and matching

For specific mold/structural parts issues raised by customers, we can assist in providing material recommendations and process matching solutions, and support integrated delivery with UL documents and performance reports.

🌐 Rich experience in international trade, supporting global shipments and customs declaration compliance

Juyuan supports customer projects in Southeast Asia, the Middle East, Europe, the Americas and other regions, and provides services such as multi-currency settlement, shipping from near and far ports, COA/REACH/UL report packages, etc., so that customers can place orders and produce with peace of mind.

 

07 | Conclusion: A smarter PC plastic material helps more efficient production

 

In a manufacturing environment where precision, efficiency and compliance are the core, PC 121R-21051 is not a high-end premium product, but it is a cost-effective choice to improve molding efficiency and solve demoulding problems. It will help injection molding manufacturers reduce link costs from the raw material end and have stronger response speed and quality stability in global competition.

 

 

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