[TheForge] Gun blue finishing

[FireWorks PDX]

 I've seen  some great examples of iron finished with gun bluing and some descriptions of sealing it in linseed oil or lacquer, but, after going to buy some gun blue, I've come to discover that applying gun blue in an even coat without bathing the iron in a tank of it (as gunsmiths apparently do), not to mention that it's challenging to find a place that sells the amount necessary to seal a larger project (in this case a welded table frame). Thoughts?

Thanks,

Mark Novak