Lifting this one out of the grave.
I recently got hooked on this idea after owning filson, barbour, red read, dux back, old hunting coats.
I had an older Polo canvas jacket that was actually very well made bird hunting coat with an actual game pouch. I will post pics tonight (yes in 2014).
What I've learned:
Creating your own recipe for thorn dressing or wax is trial and error. I studied dozen of posts and made a few batches of wax and none of them turn out quite as smooth as a barbour.
Use a real heat gun on low setting to get the wax to wick deep into the canvas. really makes a huge difference
This takes some time, not quite like polishing shoes or oiling a baseball glove.
Linseed oil does get gummy if not used right and this does create stiffness in the jacket
Turnpentine or White Spirits takes weeks to air out the strong smell if you use this in your recipe
Look for pine tar at a tack shop (saddle shop), I did not try but this could be a key ingredient for all I know
Experiment with some cheap canvas duffle bags and totes from thrift stores
My jacket turned out great as a hunting coat. I would take it through the meanest briars no prob. Probably not suited for the office and Winchester AAs would spill out of my pockets anyway
