Bsun Sea Fog Tactile Switches

The Bsun Sea Fog Tactile is a medium-weight tactile switch suited for users who want subtle tactile feedback with a noticeable but not overpowering click sound. It fits typists and casual gamers who prefer a smooth keypress with a rounded bump rather than sharp or aggressive tactility. The switch offers a balanced sound profile with a clacky top-out, making it suitable for those who like audible feedback without excessive noise.

Feel & Sound

• The tactile bump is rounded and subtle, providing feedback without the sharpness found in Holy Panda-style switches.
• Sound leans toward medium clacky, with a smooth travel and a distinct clacky top-out due to the polycarbonate top housing.
• Fiberglass reinforcement in the bottom housing adds durability and influences the sound without making it too harsh.

Actuation Characteristics

• Operating force around 45g with a bottom-out force near 53g, offering moderate resistance suitable for extended typing sessions.
• Pre-travel of 1.9mm and total travel of 3.4mm provide a balanced keypress depth, avoiding overly shallow or deep actuation.
• The LY stem material is slightly softer than POM, contributing to a smoother feel and less scratchiness during keypresses.

Build Quality & Lubrication

• Top housing made from polycarbonate ensures smooth stem movement and consistent sound signature.
• Bottom housing uses modified PA66 with some fiberglass for strength and sound control.
• Factory lubed with a mix of 205 and 105 lubricants on sliders and dry film lube on springs, reducing initial scratchiness and spring noise (spring ping).

Trade-offs

• Subtle tactility may feel underwhelming for users seeking a strong tactile bump.
• Medium clacky sound might be too loud for quiet office environments.
• Unknown compatibility details and modification potential beyond factory lube.