14/08/2010
- Understanding Brake Pad Noise with PFC Carbonmetallic®
- What are SEVERE DUTY Carbonmetallic® Brake Pads?
- Factors Contributing to Brake Pad Noise
- Performance Friction's Approach to Noise Reduction
- What to Expect with SEVERE DUTY Carbonmetallic® Pads
- Troubleshooting Potential Noise Issues
- Finding PFC Brake Parts and Distributors
- Conclusion
- Frequently Asked Questions (FAQ)
Understanding Brake Pad Noise with PFC Carbonmetallic®
When it comes to automotive braking systems, noise is often a primary concern for drivers. Whether it's a subtle squeal or a more pronounced groan, brake pad noise can be an indicator of various factors, from material composition to installation. Performance Friction Company (PFC) is renowned for its high-performance brake components, and their SEVERE DUTY Carbonmetallic® pads are a popular choice for those seeking superior stopping power and durability. However, a common question that arises is: "Are SEVERE DUTY Carbonmetallic® brake pads noisy?" This article delves into the characteristics of these pads, exploring the factors that contribute to brake noise and what users can typically expect.

What are SEVERE DUTY Carbonmetallic® Brake Pads?
PFC's Carbonmetallic® compound is engineered for demanding applications, offering exceptional friction and heat resistance. These pads are designed to withstand the rigours of heavy braking, often found in performance vehicles, trucks, and SUVs subjected to towing or frequent high-stress driving. The "SEVERE DUTY" designation highlights their suitability for conditions that push standard brake pads to their limits. The Carbonmetallic® formulation combines carbon fibres and metallic compounds to achieve a balance of performance and longevity.
Factors Contributing to Brake Pad Noise
Brake noise, often referred to as "brake squeal" or "brake groan," can stem from several sources. Understanding these can help in diagnosing and potentially mitigating the issue:
- Material Composition: The specific blend of materials in a brake pad directly influences its acoustic properties. Some high-performance compounds, while offering superior stopping power, can be inherently more prone to generating noise due to their aggressive friction characteristics.
- Surface Irregularities: The mating surfaces of the brake pad and rotor are critical. Even minor imperfections, such as glazing on the pad surface or slight warping of the rotor, can lead to vibrations that manifest as noise.
- Installation: Proper installation is paramount. Incorrectly seated pads, missing or damaged shims, or inadequate lubrication of contact points can all contribute to noise.
- Brake System Dynamics: The overall design and condition of the braking system, including the calipers, rotors, and brake fluid, play a role. Vibrations can be amplified or dampened by different components.
- Environmental Factors: Moisture, dust, and road debris can accumulate on brake components, leading to temporary noise, especially after a period of inactivity or in damp conditions.
Performance Friction's Approach to Noise Reduction
Performance Friction Company invests heavily in research and development to optimise not only the performance but also the user experience of their brake pads. While high-performance compounds often involve trade-offs, PFC employs several strategies to minimise noise:
- Advanced Shim Technology: PFC pads often feature multi-layer shims designed to absorb vibrations and dampen noise. These shims act as a buffer between the pad and the caliper.
- Chamfered Edges and Slots: Many PFC pads come with pre-chamfered edges and slots. Chamfering helps to prevent the edges of the pad from digging into the rotor, reducing a common cause of squeal. Slots can help to dissipate heat and gasses, further contributing to quieter operation.
- Material Engineering: The Carbonmetallic® compound itself is engineered to balance performance with a reasonable noise profile. While it's a performance-oriented material, PFC aims to make it as quiet as possible within its intended application.
What to Expect with SEVERE DUTY Carbonmetallic® Pads
It's important to set realistic expectations when using high-performance brake pads. While PFC strives for quiet operation, the SEVERE DUTY Carbonmetallic® compound is designed for extreme conditions. This means that under certain circumstances, some level of noise might be present.
Initial Break-in Period: Like most performance brake pads, PFC Carbonmetallic® pads require a proper break-in procedure. This process ensures that the pad material is evenly transferred to the rotor surface, creating an optimal friction interface. During this initial period, some noise may be more noticeable. Following the manufacturer's recommended break-in procedure is crucial for both performance and noise reduction.
Performance vs. Quietness: For the most part, the SEVERE DUTY Carbonmetallic® pads are designed to be relatively quiet for their performance class. Many users report satisfactory noise levels, especially when compared to other aggressive aftermarket pads. However, if absolute silence is the primary objective, a more comfort-oriented compound might be a better fit. These pads prioritise stopping power and fade resistance, which can sometimes come with a slight increase in acoustic feedback.
Specific Driving Conditions: Noise can also be more apparent under specific driving conditions. For example, light braking, especially at low speeds, can sometimes induce squeal. This is often due to the lower forces involved, which can allow natural vibrations to become more audible. Heavier braking, where the pads are working harder and generating more heat, may actually result in quieter operation.
Troubleshooting Potential Noise Issues
If you are experiencing excessive or persistent noise from your PFC SEVERE DUTY Carbonmetallic® brake pads, consider the following:
| Symptom | Possible Cause | Solution |
|---|---|---|
| Light squeal during initial braking | Normal break-in, slight surface dust | Ensure proper break-in procedure was followed. Clean rotors and pads if debris is suspected. |
| Persistent high-pitched squeal | Worn or damaged shims, improper pad seating, rotor issues | Inspect shims for damage. Verify correct pad installation. Check rotor condition for glazing, warping, or uneven wear. |
| Low-frequency groan during heavy braking | Pad material transfer issues, excessive heat | Re-bed the pads following the manufacturer's procedure. Ensure rotors are adequately sized and in good condition for the application. |
| Noise after washing or in damp conditions | Surface rust on rotors, moisture | This is often temporary and may disappear after a few brake applications. |
Finding PFC Brake Parts and Distributors
If you're looking to purchase PFC brake parts, including the SEVERE DUTY Carbonmetallic® pads, or need to find a qualified installer, Performance Friction Company offers convenient tools:
- Parts Finder: Use their online parts finder to look up specific brake pad part numbers or components for your vehicle make and model. This ensures you get the correct fitment.
- Distributor Locator: PFC's distributor locator map can help you find a local authorised distributor or installer in your area. This is invaluable for ensuring you purchase genuine PFC products and have them installed by professionals who understand their performance characteristics.
Conclusion
In summary, while PFC's SEVERE DUTY Carbonmetallic® brake pads are engineered for exceptional performance in demanding situations, they are generally considered to be relatively quiet for their class. Some noise, particularly during the initial break-in period or under specific light braking conditions, can be normal. However, persistent or excessive noise may indicate an installation issue, component wear, or rotor problems. By understanding the factors that contribute to brake noise and following proper installation and maintenance practices, drivers can maximise the performance and minimise the acoustic feedback from these high-quality brake pads. Always consult the manufacturer's guidelines and consider professional advice if you encounter persistent braking noise.
Frequently Asked Questions (FAQ)
Q1: Do PFC Carbonmetallic® pads require a special break-in procedure?
Yes, like most performance brake pads, PFC Carbonmetallic® pads benefit from a proper break-in procedure to ensure optimal performance and longevity. Refer to PFC's documentation for the recommended steps.
Q2: Can I use PFC Carbonmetallic® pads on a daily driver?
Yes, many daily drivers can benefit from the enhanced stopping power and durability of PFC Carbonmetallic® pads, especially if the vehicle is used for towing, hauling, or experiences frequent hard braking. However, be aware that they are a performance-oriented compound and may produce slightly more noise than a standard organic pad.
Q3: What is the difference between Carbonmetallic® and other PFC compounds?
PFC offers various compounds tailored to different applications. Carbonmetallic® is a versatile, high-performance compound. Other compounds might be designed for extreme track use (often noisier) or for maximum comfort and low noise (potentially less aggressive performance).
Q4: How long do SEVERE DUTY Carbonmetallic® pads typically last?
The lifespan of brake pads is highly dependent on driving style, vehicle weight, and operating conditions. However, SEVERE DUTY Carbonmetallic® pads are designed for extended wear in demanding applications, generally outlasting standard pads under similar stress.
Q5: If my PFC pads are noisy, should I replace them immediately?
Not necessarily. First, confirm that the break-in procedure was followed correctly. Inspect the pads, rotors, and shims for any signs of damage or unusual wear. If you're unsure, it's always best to have a qualified mechanic inspect the braking system.
If you want to read more articles similar to PFC Carbonmetallic Brake Pads: Noise Levels Explored, you can visit the Brakes category.
