# conductive ABS, conductive ABS compound, anti-static ABS, EMI shielding material, carbon black filled ABS, carbon nanotube filled ABS, carbon fiber filled ABS | RenJie Plastics

> Source: https://www.rjplastics.com/en/product/conductive-abs-compound

## Conductive Compound

[Home](/en/)›[Products](/en/products)›[ESD Plastics](/en/products/esd-lastics)›[Conductive Compound](/en/products/conductive)›**Conductive ABS compound**

      **## Conductive ABS compound Model: C121/C121H**

    Conductive ABS compound uses ABS base resin with conductive fillers; resistance below 10⁸ Ω. RenJie® C121 offers stable electrical properties, C121H high impact and rigidity. HDT 86–100 ℃.

| Product Description | Conductive ABS compound |
| --- | --- |
| RenJie®Grade | C121/C121H |
| Surface Resistivity | 10^2~10^7 Ohm/sq |
| Volume Resistivity | 10^2~10^6 Ohm.cm |
| Appearance | Granules/Black |
| Conductive filler | Carbon black /Carbon nanotube etc |

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    Overview
    Specifications

### 1. What Is a Conductive ABS Compound?

A **conductive ABS compound** is a composite material that uses acrylonitrile-butadiene-styrene (ABS) as the base resin and adds various conductive fillers to make it conductive. The base ABS resin is available in **injection molding grade** and **extrusion grade** to match different processing methods.

- Resistance level: The resistance value of the conductive ABS compound is below 10⁸ Ω, placing it in the anti-static to conductive range so that static charge can be dissipated effectively.
- Functional positioning: It keeps the good processability, appearance and mechanical performance of ABS while adding stable conductivity and static-dissipation capability.

### 2. RenJie® C121: Conductive ABS with Stable Electrical Properties

**RenJie® C121** is a conductive ABS compound with stable electrical properties. Its key advantage is consistency:

- Within a certain range of temperature, humidity and frequency, changes in electrical parameters such as resistivity and surface resistance are relatively small;
- It maintains relatively stable conductive properties under different environmental conditions, so it can function reliably in complex working environments;
- It suits precision electronic parts and anti-static structural components that require resistance consistency and batch-to-batch stability.

### 3. RenJie® C121H: High-Impact, High-Rigidity Conductive ABS

**RenJie® C121H** is a high-impact, high-rigidity conductive ABS compound:

- Although it contains a certain amount of fillers, its melt fluidity is better than some other engineering plastics;
- It fills the mold more easily during processing and has a relatively short molding cycle;
- This helps improve production efficiency and reduce production costs, making it suitable for complex or thin-wall precision parts.

### 4. Thermal Properties and Dimensional Stability

Conductive ABS compounds maintain stable thermal properties within a certain temperature range and are not prone to deformation or decomposition:

| Key property | Typical performance |
| --- | --- |
| Heat deflection temperature | Generally 86 ℃–100 ℃ |
| Improvement after annealing | A further increase of about 10 ℃ |
| Molding shrinkage | Relatively small, giving higher dimensional accuracy of the end product |
| Typical use | Parts with temperature requirements; precision or tight-tolerance products |

Because the **molding shrinkage rate** of this compound is relatively small, the dimensional accuracy of the end product is relatively high, which is an advantage in the production of precision parts or products with strict dimensional requirements. For example, the shells and parts of certain instruments and meters need materials with good dimensional stability to ensure product accuracy and reliability.

### 5. Common Conductive Fillers in Conductive ABS Compound

The choice of conductive filler determines the **conductivity level, mechanical performance, appearance and cost** of the compound. Comparison of the common options:

#### 5.1 Carbon black-filled conductive ABS compound

- Characteristics: One of the most commonly used conductive fillers — relatively low cost and good conductivity;
- Mechanism: Carbon black forms a conductive network in the ABS matrix, giving the composite a certain conductivity;
- Limitations: Adding carbon black may affect the color (usually turning the material black) and the mechanical properties, and may reduce impact strength.

#### 5.2 Carbon nanotube-filled conductive ABS compound

- Characteristics: Carbon nanotubes have high strength and stiffness; adding them to ABS plays a reinforcing role;
- Performance gain: After an appropriate preparation process, tensile strength, bending strength, yield strength and other mechanical properties of carbon nanotube-based conductive ABS may be improved by 20%–50% or even higher than other conductive ABS;
- Best for: Structural parts requiring both strength and conductivity.

#### 5.3 Carbon fiber-filled conductive ABS compound

- Characteristics: High strength, high modulus and good conductivity;
- Advantages: Adding carbon fiber improves not only conductivity but also the mechanical strength and heat resistance of the material;
- Limitations: Carbon fiber price is relatively high, and the processing technology for this level of conductive ABS is demanding — special treatment is needed to disperse fibers evenly in the matrix.

#### 5.4 Metal fiber-filled conductive ABS compound

- Examples: Stainless steel fibers, etc.;
- Advantages: Good conductivity and mechanical properties. Metal fibers have a large aspect ratio and are more likely to form a conductive network in ABS, thereby improving conductive properties;
- Comparison: Compared with metal powders, metal fibers have better dispersibility;
- Limitations: Higher cost.

#### Filler Selection Comparison Table

| Filler type | Conductivity | Mechanical effect | Appearance effect | Cost | Typical applications |
| --- | --- | --- | --- | --- | --- |
| Carbon black | Good | Impact strength may decrease | Material turns black | Low | General anti-static/conductive parts, cost-sensitive projects |
| Carbon nanotubes | Good | Tensile/bending strength +20%–50% | Dark | Medium-high | High-strength, high-conductivity structural parts |
| Carbon fiber | Good | Strength, modulus, heat resistance improved | Dark | High | High-strength, high-heat-resistance parts |
| Metal fibers | Good | Good mechanical properties, excellent dispersion | Metallic/dark | High | High-conductivity, EMI shielding parts |

### 6. Where Are Conductive ABS Compounds Used?

#### 6.1 Electronics and communication equipment

Used in manufacturing the **housing, substrate, connector and other parts** of computers, communication equipment and displays to prevent static electricity from damaging sensitive components. For example, using conductive ABS in a mobile phone housing effectively prevents static electricity accumulation and protects the electronic components inside the phone.

#### 6.2 Automotive

Used in **fuel system components, dashboards and interior parts** to reduce the risk of static electricity sparks and improve vehicle safety. In addition, conductive compounds are used in **electromagnetic shielding components** to reduce interference from external electromagnetic signals on automotive electronic equipment.

#### 6.3 Medical devices

Used to manufacture **surgical instruments, diagnostic equipment and medical instrument housings** to reduce the impact of static electricity on equipment and patients. For example, conductive ABS in the housing of an electrocardiograph avoids static interference with ECG signals and improves diagnostic accuracy.

#### Application Overview Table

| Industry | Typical parts | Core requirement |
| --- | --- | --- |
| Electronics/telecom | Housings, substrates, connectors | Anti-static, protection of sensitive components |
| Automotive | Fuel system parts, dashboards, interior parts, EMI shielding parts | Spark prevention, electromagnetic shielding |
| Medical | Surgical instruments, diagnostic equipment housings | Static interference control, signal accuracy |

### 7. How to Choose a Conductive ABS Compound

- Electrical consistency first → choose RenJie® C121;
- High impact, high rigidity and molding efficiency → choose RenJie® C121H;
- Cost-sensitive, general anti-static parts → carbon black-filled system;
- Balanced strength and conductivity → carbon nanotube or carbon fiber-filled system;
- High conductivity + EMI shielding → evaluate a metal fiber-filled system.

### 8. FAQ

**Q1: What is the resistance value of conductive ABS compound?** A: The resistance value is typically **below 10⁸ Ω**, adjustable by filler system and loading level.

**Q2: Is conductive ABS the same as anti-static ABS?** A: Not exactly. Conductive ABS is a functional composite based on ABS with conductive fillers added; its resistance range generally covers anti-static (static dissipation) through conductive, so selection should be made by specific grade and resistance requirement.

**Q3: What is the difference between RenJie C121 and C121H?** A: C121 focuses on **stable electrical properties** — small fluctuations in resistivity and surface resistance across temperature, humidity and frequency changes. C121H focuses on **high impact and high rigidity**, with better melt fluidity, easier mold filling and a shorter molding cycle.

**Q4: What is the heat resistance of conductive ABS and can it be improved?** A: Heat deflection temperature is generally **86 ℃–100 ℃** and can be raised by about **10 ℃** after **annealing**, meeting the requirements of some high-temperature environments.

**Q5: Can conductive ABS be used for medical device housings?** A: Yes. Its stable conductive performance helps reduce the impact of static electricity on equipment and patients — for example, housings of diagnostic devices such as electrocardiographs.

### 9. About RenJie®

RenJie® focuses on the development and supply of functional modified engineering plastics. Its conductive ABS compound series (C121, C121H and more) covers injection molding grade and extrusion grade base resins, delivering stable electrical properties, mechanical performance and dimensional accuracy for anti-static and EMI shielding needs in the electronics, automotive and medical industries.

| Product Description | Conductive ABS compound |
| --- | --- |
| RenJie®Grade | C121/C121H |
| Surface Resistivity | 10^2~10^7 Ohm/sq |
| Volume Resistivity | 10^2~10^6 Ohm.cm |
| Appearance | Granules/Black |
| Conductive filler | Carbon black /Carbon nanotube etc |
| Processing | Injection/Extrusion/Blowing |
| Applications | ESD Injection part/ESD sheet |

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