by Peter W. Mon Mar 18, 2019 9:51 am
For this discussion, it would be useful to understand what WD-40 is, and also what it is not.
https://www.wd40.com/files/pdf/msds-wd482671453.pdf Is what it is.
What it is not:
a) A lubricant. Its lubricating properties are brief as it is 100% volatile.
b) Persistent. It is 100% volatile. This bears repeating! Eventually, depending on external conditions, within hours or days, it will ALL go away.
c) If it combines with any other materials during application, that material will be left behind, often evenly distributed.
d) For this reason, WD-40 is often accused of leaving a "gummy mess" behind. No, it ain't nohow the WD-40, it is whatever materials it picked up left behind by the evaporation process - much as water leaves any dissolved minerals behind when it evaporates.
WD-40 contains a surfactant - this combines with residual water, and helps remove it. Hence the name: W-ater D-isplacement, 40th Try. I need to repeat: WD-40 is not, never was, nor is it meant to be a lubricant.
Guys and gals, and with all due respect to all sides of this story, I would not let WD-40 anywhere near my vinyl records, and for a number of reasons, mostly having to do with protecting the stylus.