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SEMIMETALLIC BRAKE PADS
Semi-metallic brake pads are made up of 30-70% metals, including copper, iron, steel, and other composite alloys.
SEMIMETALLIC BRAKE PADS
Semi-metallic brake pads contain metal fibers (usually steel, iron, or copper) mixed with organic materials.
SEMIMETALLIC BRAKE PADS
Semi-sintered pads feature 30 percent copper in a specialized design that offers increased performance at a more cost-effective price.
SEMIMETALLIC BRAKE PADS
Made of 30% to 70% metal, they are extremely durable. Semi-metallic pads can be expected to last approximately 40,000 miles.
Semi Metallic Brake Pads
What Are Semi Metallic Brake Pads?
Semi-metallic brake pads are a type of brake pad made from a combination of metal and organic materials such as fiberglass or Kevlar. The metal content is usually copper, steel, iron, or other alloys and makes up about 30-65% of the cladding.
This is in contrast to ceramic brake pads, which contain no metal and are made only of ceramic, glass, minerals, and binders. Or they can be used for traditional organic cladding made from metal-free fibers, fillers, binders, and lubricants.
The metal in the semi-metallic cover provides better heat transfer and conductivity compared to other types of covers. The pads quickly dissipate heat to the rotor and surrounding components, preventing overheating.
The organic components bind the materials together and provide friction. Semi-metallic brake pads are often made from chopped steel or iron wool fibers that are highly heat resistant. When force is applied, the fibers compress, providing a firm grip on the rotor surface when braking.
Overall, semi-metallic brake pads offer an ideal balance of performance, durability, noise, dust, and cost. The metal content ensures better stopping power and fade resistance compared to ceramics. They also produce less dust than all-metal brake pads and last longer than organic brake pads.
Benefits of Semi-Metallic Brake Pads
Semi-metallic brake pads offer several advantages over other pad materials.
**Improved Braking Performance**
The metal fibers in semi-metallic pads provide strong friction, so they brake better than pads made entirely of non-metallic materials. The metal helps the pads bite into the rotor quickly, resulting in shorter stopping distances.
**Improved Durability**
The metal in semi-metallic pads ensures they will stand up well to heavy braking. They are more resistant to wear and tear than covers that do not contain metal. Semi-metallic pads typically last longer than most ceramic or organic pads.
**Improved Heat Resistance**
Metal can withstand high temperatures without fading or warping, even under repeated hard braking. The semi-metallic compound is designed to absorb brake friction heat, preventing the pads from overheating and reducing stopping power during aggressive driving. This makes them ideal for circuit and sporty driving.
In summary, semi-metallic brake pads offer excellent stopping power, a long service life and strength at high temperatures. Drivers who frequently brake hard or who want responsive brakes for sporty driving should choose semi-metallic pads. The metal components offer a decisive advantage over other types of covers.
BRAKE PADS
Brake pads sit between the rotor and caliper to reduce metal-to-metal friction.
BRAKE PADS
Brake pads are the materials that sit between the brake caliper and brake rotor in a disc brake system.
BRAKE PADS
Brake pads are made of friction material and press against the rotor to slow down and stop the vehicle.
BRAKE PADS
Proper brake pads can mean the difference between your vehicle hitting an object or being able to stop quickly before hitting an object.
Disadvantages of Semi Metallics Brake Pads
Semi-metallic brake pads have some disadvantages compared to other pad materials. The two main disadvantages are:
**Increased Noise**
Semi-metallic pads tend to be louder when braking than non-metallic pads. Metallic parts transmit vibrations more easily, resulting in squealing and squealing when braking. This can be annoying for some drivers. However, the trade-off is usually improved braking performance.
**Increased Dust**
Because semi-metallic pads contain metal, they produce more brake dust than organic pads. Over time, this brake dust can build up on your wheels and become difficult to clean. The dust doesn't affect braking performance, but you may need to wash your wheels more frequently to keep them clean.
Overall, the increased noise and dust are relatively small compromises compared to the improved braking performance and durability that semi-metallic brake pads offer. However, it's helpful to be aware of these potential drawbacks before selecting a brake pad compound. With proper maintenance, both issues can be resolved.
Best Applications for Semi-Metallic Brake Pads
Semi-metallic brake pads are ideal for high performance applications due to their high heat resistance and durability. The metallic compounds in the pads can withstand repeated hard braking without fading, making them ideal for track days and amateur racing.
Semi-metallic pads are a must if you plan on towing heavy loads. The long downhill stretches inherent in towing generate tremendous amounts of heat that organic pads may not be able to handle. Semi-metallic pads with metal components can withstand high temperatures without fading or warping. This ensures consistent braking power even after repeated driver use.
Off-road driving puts a lot of strain on brake pads. Rugged terrain creates many tough braking situations as drivers must overcome obstacles and difficult hills. Semi-metallic compounds withstand the stresses of off-road driving with ease. Stable friction even at high temperatures ensures reliable braking in all conditions. Whether climbing rocks or braking on loose ground, semi-metallic pads deliver the performance you need for your off-road adventures.
Overall, semi-metallic brake pads offer a decisive advantage in high-performance driving situations thanks to their metal content. When heavy, repeated braking is performed at high speeds or high temperatures, semi-metallic compounds outperform other types of pads. Drivers who value fade resistance and durability should consider semi-metallic pads for towing, racing and off-road use.
BRAKE PADS
Brake pads sit between the rotor and caliper to reduce metal-to-metal friction.
BRAKE PADS
Brake pads are the materials that sit between the brake caliper and brake rotor in a disc brake system.
BRAKE PADS
Brake pads are made of friction material and press against the rotor to slow down and stop the vehicle.
BRAKE PADS
Proper brake pads can mean the difference between your vehicle hitting an object or being able to stop quickly before hitting an object.
Types of Semi Metallic Brake Pads
Semi-metallic brake pads can be divided into two main categories based on their metal content:
Brake Pads with Low Metal Content
Low metal brake pads typically contain around 30% metal by weight. The most commonly used metals are iron, steel, or copper fibers. These give the cover durability and heat resistance while maintaining a high coefficient of friction.
Brake pads with low metal content tend to be less aggressive and produce less dust than compounds with higher metal content. The lower metal content results in quieter operation and protects the rotor, but can weaken with repeated hard braking.
Brake Pads with High Metal Content
High metal content brake pads contain a metal content of 60% or more by weight. Some racing compounds contain 70-80% metals such as iron, copper, and graphite. These pads have excellent heat dissipation and wear resistance for heavy duty use. The downside to high metallic pads is that they are louder, produce more dust, and wear rotors faster. They are best suited for race day, autocross events, and competitive driving where maximum braking performance is required. We do not recommend using these pads on the road every day. The compromise with semi-metallic pads is to balance everyday drivability with on-demand performance. Low metallic compounds offer a good combination for most riders, while high metallic pads are best saved for race day.
How to Choose the Right Semi Metallic Pads
When selecting semi-metallic brake pads, you need to consider your vehicle type, driving conditions, and braking requirements. This will ensure that you get the right pads for optimal braking performance.
Type of Vehicle
- Larger vehicles such as trucks and SUVs need more durable and sturdy pads that can withstand repeated hard braking. Semi-metallic pads are a good choice because they stand up to heat well and prevent brake fade.
- For lighter cars and sedans, look for semi-metallic pads designed for lighter weight and slower speeds. Pads designed for larger vehicles may cause excessive vibration and noise.
- High-performance vehicles need pads that can withstand repeated hard braking at high speeds. Choose semi-metallic brake pads that are heat resistant and have good braking friction.
Driving Conditions
- If you drive frequently in cold or rainy weather, buy semi-metallic brake pads with grooves, slots, or chamfers that allow for drainage and clean braking.
- If you drive in hot climates, choose brake pads that are resistant to brake fade and overheating. Make sure the compound and friction material can withstand high temperatures.
- If you drive frequently on unpaved roads, semi-metallic brake pads with self-cleaning properties prevent dirt build-up and ensure more reliable braking.
Braking Requirements
- If you drive mainly in urban or suburban areas with lots of stop-and-go traffic, you value short stopping distances and low noise. Organic brake pads may be a better choice than semi-metallic brake pads.
- If you frequently tow or transport heavy loads, you need brake pads that can withstand repeated hard braking without fading. Semi-metallic compounds are ideal because they have a high thermal threshold.
- For sporty or track driving, choose high-friction semi-metallic brake pads that can withstand extreme braking temperatures without fading. Noise and dust must be acceptable.
Evaluating your specific vehicle and driving needs will help you find the right semi-metallic brake pads for safe, responsive braking. Further recommendations can be found in the manufacturer's assembly instructions.
Top Brands for Semi Metallic Pads
When it comes to the top brands for semi-metallic brake pads, three names stand out from the crowd:
Hawk
Hawk Performance is one of the most trusted brands in the braking industry, known for producing high-quality aftermarket pads and rotors. Their semi-metallic pads are designed for heavy road use and feature a high-friction formula that can withstand high temperatures. Hawks HPS Performance road surfaces are very popular and feature shorter stopping distances, minimal brake degradation and less dust. For more extreme applications, they offer HP Plus rubber with better bite.
EBC Brakes
EBC Brakes is also a leading supplier of aftermarket brake components, manufacturing their products in the UK and the USA. They are known for their innovation and quality. EBC offers three series of semi-metallic brake pads with enhanced friction levels: Greenstuff, Redstuff, and Yellowstuff. Redstuff and Yellowstuff pads are preferred for race track and racing use. All EBC pads provide reliable stopping power.
Carbotech
When it comes to high performance brake pads for the race track, Carbotech is your first choice. The company manufactures a wide range of semi-metallic compounds for a variety of vehicles and applications. Carbotech's AX6 and XP8/10/12 brake pads are popular options that offer aggressive bite, low dust formation, and high resistance to brake fade. The brake pads are designed to withstand the extreme thermal cycles found in motorsports.
These three brands continue to receive high praise from drivers for their semi-metallic brake pads, which combine street and track performance, improve pedal feel, reduce brake fade, and provide the best stopping power. Their brake pads are highly rated by enthusiasts and experts alike.
Pioneer Motors LTD(PMP)
Pioneer Motors is considered a leading supplier of high-quality Semi Metallic brake pads.
Installing Semi Metallic Pads
Installing semi-metallic brake pads is relatively easy, but care must be taken to ensure it is done correctly. Here are the steps to install semi-metallic brake pads:
Safety First
- Park your vehicle on a flat, level surface and apply the parking brake. Block the rear wheels from rolling.
- Wear protective gloves and safety glasses. Brake dust contains heavy metals and can irritate the skin and eyes.
Remove Wheels
- Loosen the lug nuts on the wheel you will be working on.
- Raise the vehicle and secure it on jack stands.
- Remove the lug nuts and wheels.
Remove the brake caliper and brake pads
- Locate the brake caliper bolts and remove them using a socket wrench. There are usually two screws.
- Carefully remove the caliper from the rotor and attach it to the suspension using a bungee cord or wire. Do not let it hang from the brake hose.
- Remove the old brake pads and pad parts such as springs, clips and washers. Note their position for reassembly.
Install New Pads
- Clean the caliper bracket and lubricate the caliper slide pins if necessary.
- Install the new semi-metallic pads in the same orientation as the old pads. Replace all pad parts.
- Push the brake caliper pistons back into their holes to make room for the new thick pads.
Reinstall the brake calipers and wheels
- Reinstall the brake calipers over the new pads and rotors. Install and tighten the caliper bolts.
- Replace the wheel and hand-tighten the wheel nuts.
- Lower the vehicle and then tighten the wheel nuts in a star pattern.
Bed In the Pads
- Breaking in and grinding your semi-metallic brake pads is very important for proper performance and brake pad life.
- Accelerate to approximately 40 mph and apply moderate braking to remove all debris. Repeat this 5-10 times.
- Avoid sudden stops for the first 200 miles to ensure the brake pads are seated properly.
With patience and proper technique, you can successfully install your new semi-metallic brake pads. Be sure to consult your vehicle's service manual for complete instructions and specifications. Take the time to double-check your work to ensure safe braking.
Maintaining Semi Metallic brake Pads
Semi-metallic brake pads require some maintenance to function properly and extend their life. Here are some tips for maintaining your semi-metallic brake pads.
Checking Pad Thickness
- Check the cover thickness regularly. Pads should be replaced when they are 3/16 inch thick or less. Use a ruler or caliper to measure the pad thickness through the caliper opening.
- Uneven pad wear between the inner and outer pads may indicate a problem with the caliper, slide pins, or hardware. Fix the underlying problem before installing new pads.
Cleaning and Lubricating Parts
- Clean the caliper brackets and hardware from accumulated brake dust and dirt. Use brake cleaner and a brush.
- Lubricate the caliper sliding pins and all moving parts with silicone brake lubricant. This will prevent seizure and uneven pad wear.
- Never use grease or oil on brake parts. Use only silicone brake lubricant.
- After lubrication, make sure the sliding pins can move freely in the rubber sleeves. Replace worn rubber boots.
Following these maintenance procedures will help your semi-metallic brake pads last longer and function safely and effectively. Consult your owner's manual for additional maintenance procedures recommended by your vehicle manufacturer.
Frequently Asked Questions About Semi-Metallic Brake Pads
What are semi metallic brake pads made of?
Semi-metallic brake pads consist of 30-65% metal particles such as copper, iron or steel bonded to asbestos-free organic material. This mixture gives them advantages such as improved heat conduction and durability compared to organic coatings.
Do semi metallic pads last longer?
Yes, semi-metallic pads usually last 2-3 times longer than organic pads. The metal content improves their heat and wear resistance. Proper break-in and the right driving style also affect their service life.
Are semi metallic pads noisy?
Semi-metallic brake pads tend to be louder than ceramic brake pads, especially when cold. However, modern designs have shims, slots, and bevels to reduce noise. Using high-quality brake pads and proper break-in can help minimize noise.
Do semi metallics produce more dust?
Semi-metallic brake pads actually produce more dust than ceramic brake pads because the brake pad material wears away over time. However, they produce less dust than older organic brake pads that contain asbestos. Fully enclosed hardware keeps out dust.
Can I switch from ceramic to semi metallic pads?
You can change brake pad types, but you must completely remove the old brake pad material from the braking system. Improper cleaning can cause uneven braking and noise. Consult a mechanic before changing brake pad types.
When should I replace my semi-metallic brake pads?
Check your brake pads approximately every 25,000 to 30,000 miles. Make sure the wear indicators are touching the rotors, which means the brake pads are worn. Uneven brake pad wear or deep grooves also indicate that replacement is needed.
Do I need new rotors with semi metallic pads?
If your rotors still have enough thickness, you can install new semi-metallic brake pads without replacing the rotors. However, make sure to thoroughly clean and recoat the rotors beforehand to prevent noise and vibration issues.