Okay, we hear you!
We've had a surge in interest in our product over the last few months... and during this time, many (many many) people seem to be chasing a particle size of less than 1.6 microns in size. We had a recent customer claim that our product was between 2 and 3 microns in size. We are comfortable with that nice round estimate, but you should know that it's not quite so straightforward. A large percentage of our particles are actually less than 1.5 microns in size. The mean particle size is probably somewhere in-between.
The main takeaway we would like to put out to the world is to be to be skeptical of consumer suppliers that claim to provide a product consistently less than 1.6 microns in size. As you may suspect, there have been a lot of new ptfe sellers popping up on eBay and Amazon recently who simply drop-ship their product from China. The quality of those suppliers might be just fine, but you really don't know what you're getting until it shows up. Your odds are good, but as the saying goes... the goods may also be odd.
Fortunately, you may never even know the difference. If you are simply suspending ptfe in paraffin to treat a bike chain, let's face it... bike gears aren't like small gears with ultra-high tolerances. For most consumer applications, the *purity* of the ptfe will be far more important than the particle size. We have had great success with our product suspended in melted paraffin for lubricating bike chains for many years. Other users also use it for grand piano maintenance and dozens of other places where a non staining powder would be a better choice than an oil based product. (so, save some before dumping it all into your pot of wax!)
Okay, glad we got that off our chests.
Have a great day.
-Bob