Discovered by @vr20x6, independently verified by me.
Does not damage switches, improvement is impressive. SHOULD work for all Alps SKCC/SKCL/SKCM.
The method is simple, I used one slightly different to VR20X6 because I didn't want to faff around with setting up a strainer in a pot.
- Boil kettle
- Pour into mug
- Put sliders and housings into boiling water
- Wait 90 seconds
- Remove and dry
Tested with: Alps SKCC Cream, Alps SKCL Green, Alps SKCM Salmon
Improvements far exceeded mere ultrasonic cleaning. Scratchy SKCC Cream brought to being indistinguishable from a "good" SKCC Cream just by boiling the sliders. Turbofucked SKCL Green brought to slightly scratchy state. Scratchy and bindy SKCM Salmon restored to equivalent with the best Salmons I've ever owned. I don't want to say 10/10, but it was 10/10.