How to Fix Mechanical Keyboard Switch Spring Ping Noise

Have you ever typed on a mechanical keyboard and heard a high-pitched, metallic ringing sound after releasing a key? That annoying noise is called **spring ping**. It is caused by the steel spring inside the switch vibrating against the plastic housing or copper contacts when it rebounds. Spring ping can ruin the sound profile of even the most expensive setups. This guide shows you how to eliminate spring ping noise permanently.

1. The Primary Cure: Lubricating the Springs

The absolute best way to stop spring ping is by applying a thin layer of specialized grease to the springs. This dampens the metallic vibrations.

• Brush Lubing: Disassemble the switch, remove the spring, and use a small paint brush to apply a grease like **Krytox GPL 205g0** to the top and bottom coils of the spring.
• Bag Lubing (Fast Method): Put all your switch springs into a plastic Ziploc bag. Drip 10-15 drops of high-viscosity oil (like **Krytox GPL 105**) into the bag. Blow air into the bag to puff it up, seal it, and shake it vigorously for 2 minutes. The springs will receive a perfect, even coating of oil.

2. Adding Case Foam to Stop Echoing

Sometimes, the ping sound is not louder; rather, the hollow keyboard case acts like an acoustic echo chamber, amplifying tiny noises. Adding dampening material inside the case absorbs these sounds:

• Open your keyboard case and place a layer of **Poron foam, EVA foam, or neoprene** at the bottom of the case beneath the PCB.
• The Tape Mod: Apply 2-3 layers of painter's masking tape directly to the back of the PCB. This acts as a low-pass filter, blocking high-pitched metallic pinging sounds and emphasizing deep, thocky tones.

Summary: Recommended Steps

To eliminate spring ping, start by **bag lubing your switch springs** with Krytox 105 oil. If the keyboard still sounds hollow, disassemble the case and add **EVA case foam** or perform the **PCB tape mod** to filter out acoustic echo frequencies.