Ok after owning and operating a paint business for 40 yrs. just a couple cents of thought! Sun and weather is the enemy of wood, steel ect. One job was spray painting a banked barn with linseed oil and red "oil" base enamel! With many barns under my belt latex paint faded quickly, just oil base took longer to fade but the linseed oil base paint lasted the longest very slow drying time tho. Now my 59 truck bed oak wood I stained then applied 4 coats of Marine varnish to the top the secret for me was to be patient for the varnish to completely dry before sanding between coats. Everybody that sees the bed just goes nuts many, many remarks how beautiful it is. It will be stored inside specially winter time.
Now my 20 ft. trailer I use to haul my tractor on an old farm boy trick that was taught to me I use hydraulic oil mixed with paint thinner, brush and roll it on!. The trailer sits outside 24-7 and am very pleased how it has maintained itself. Yes, I am retired so I will do this process more often!
Pops
