PBTfans spacebar foam set (3 pack)
Best sound dampening for mechanical keyboard enthusiasts seeking a refined typing feel.
Elevate your mechanical keyboard with the PBTfans spacebar foam set from StupidFish Designs. This three-pack is engineered to significantly reduce unwanted noise and enhance the tactile feel of your spacebar. Each set includes three 6.25u and three 7u foams, crafted from 6mm thick material for optimal sound dampening. Designed specifically for compatibility with PBTfans PBT keycaps and PCB mount stabilizers, these foams offer a straightforward upgrade for a more refined typing experience.
$21.00
Owner Satisfaction
4.7
/ 5
Category Rank
200
/ 6541
#200 in Keyboard Keys & Caps
Price vs Category Average
-51%
Below average
Set contents
6.257
/ Three u foams and three u foams
Who it's for
- Frequent modders needing cost-effective parts for multiple builds
- Audiophiles seeking a deeper, more satisfying typing sound
- Keyboard builders wanting a quick, hassle-free installation process
Who should skip it
- Novice users uncomfortable with removing and handling delicate keycaps
- Users with tight stabilizer tolerances experiencing sluggish key return
- Owners of non-PBTfans keycap sets requiring universal compatibility
Performance breakdown
Acoustic dampening
Effectively eliminates hollow resonance for a deeper, more satisfying spacebar sound.
Tactile refinement
Adds a subtle, cushioned bottom-out feel that improves overall typing comfort.
Installation ease
Simple drop-in design makes upgrading your stabilizers quick and frustration-free.
Compatibility range
Covers the most popular sizes but limited to specific stabilizer mounting styles.
Material density
The 6mm thickness provides substantial mass to absorb unwanted high-frequency vibrations.
Value per pack
Generous quantity ensures you have enough spares for multiple keyboard builds.
Key Specs
Set contents
Three 6.25u foams and three 7u foams
Foam thickness
6mm
Compatibility
PCB mount stabilizers only (no modification)
Material
Foam
Features
- Reduces spacebar sound and improves feel
- Includes both 6.25u and 7u foam sizes
- Compatible with PBTfans PBT keycaps
- Designed for PCB mount stabilizers
- Thick 6mm foam construction
- Three foams of each size included
What customers say
This PBTfans spacebar foam set is overwhelmingly praised for dramatically improving keyboard acoustics. Users consistently report that this simple modification eliminates hollow resonance, transforming sharp 'clack' sounds into a satisfying, deep 'thock.' The core benefit is flawless execution in achieving a premium sound profile. While minor trimming might be needed for a perfect fit across different keycap profiles, this is generally accepted. The consensus is clear: the significant acoustic upgrade delivered far outweighs the modest price. For enthusiasts focused on sound quality, this foam is considered an essential, highly effective, and affordable dampening solution that resolves a common keyboard pain point.
Know before you buy
The foam is designed to absorb hollow resonance and dampen the sharp, clacky sound often associated with larger keycaps. It creates a more solid, muted typing experience by filling the empty space inside the keycap.
While these are specifically engineered for PBTfans keycaps, they may fit other profiles. However, compatibility is not guaranteed for non-PBTfans sets, so you may need to trim the foam if the internal dimensions of your keycap differ.
No, these foams are designed exclusively for PCB-mount stabilizers. Using them with plate-mount stabilizers may cause interference or prevent the spacebar from seating correctly.
Each pack includes three 6.25u foams and three 7u foams, allowing you to dampen up to six spacebars in total. This is ideal if you have multiple keyboards or want to keep spares on hand.
The 6mm thickness is calibrated to fill the cavity without interfering with the switch stem or stabilizer movement. As long as your stabilizers are properly tuned, the foam should not impact the travel distance of the key.
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$21