[Milsurplus] Lube for old, hard to move zippers ?

[Facility 406]

> But i wonder if there’s something i could lube the zipper track with, 
> something that would not migrate to the canvas bag itself. Maybe, 
> “ChapStick”, lip balm ?
> 
> I do NOT want any ingress to the canvas bag itself.  Ideas, or what have 
> you done ?

Chapstick will migrate into EVERYTHING!  It's a freaking mess, don't 
even try it.  I've seen one stick migrate in the heat to cover 1/3 of 
the inside of a sedan, causing more of a mess than the human mind can 
even comprehend.

There are teflon based dry-lube sprays out there, I'd look into those.

Here is a type sold at Home Depot:

https://www.homedepot.com/p/Blaster-9-3-oz-Advanced-Dry-Lube-Spray-Lubricant-16-TDL/202532762

As always, test in an area before slathering your zipper.

Kurt