Correct...never never never wash an oiled Filson coat.

You will need to retreat the coat every couple of years or so if you want to maintain the water resistance. Somehow the smell of new wax is better than the smell of "original" treatment.

When I recoat mine, I rub the wax into my hands and then thinly spread it all over the garment. I turn it inside out and tumble it in a warm dryer for 5 minutes or so to melt the wax in....never never let your wife catch you doing this though.... <img src="/images/graemlins/grin.gif" alt="" /> A hair dryer works too, but gentle on the heat....and gentle on the wax amount.

A tin cloth Filson coat takes about 2 years to break in....but about 5-10 years to achieve that perfect balance between new and broken in. I bet you can break in the cover cloth in a few months.

A few hours in the sun would probably take off quite a few of the more volitile oil components. The wax/oil mix is a balance between ease of application (more oil to spread) and water resistance. As it ages it sort of hardens (more wax than oil) and eventually almost goes away so has to be renewed.

Oh the smell of tin cloth in the Autumn....