OK....since you ask....I have a long story.
Back in the 70's I sold lots of various products to the mobile home and RV manufacturers in the mid-west. We did allot of metal siding and roofing...but we had a large division that made specialty adhesives, paints, stains, glues, putty tape, buytel tapes and more. We always tried to get some additional biz with these products as we had really good stuff for that industry and we could compete quite well. Our product line had a pretty good history with the industry....and these products would get our foot in the door.....and would serve as a laugh pad for more sales. I was the sales manager for our division.....and we gave away lots of samples.....which invariably got us some biz....as we had superior products at a decent price point.
Anyway....I had this one buyer at a large plant was buying most of our line of this stuff....but he scoffed at my wood dye...which we sold many other places. They had a large cabinet shop and made all their own kitchen cupboards and closet hardware and such.....so some of these places would use considerable material. I pressed him a bit to see what he was doing...and he told me to follow him to the paint shop...connected to the cabinet shop. They had a 55 gallon drum and it was filled with water and they used RIT dye in the barrel. I think they used "umber" and used "powdered" dye rather than liquid. (both are available). They would simply dip their pine boards in the dark brown dye and quickly wipe it off and it was dry in seconds. Blended perfectly for their needs and was CHEAP.
I always remembered this. And we used to sell white glue by the drum. Some companies wanted to buy brown glue so it did not show the drips and excess as much as white glue. We used to then add some Umber from a paint store....and simple blend it in with a 1/2 HP drill and stirring device. Kept our inventory low by keeping drums of white glue and mixing our own. I think we got paid substantially more for the brown glue....and it was an easy task to get 'er done.
Anyway.....I looked for a cheap paint or stain solution on line......and everything out there costs about $50 a gallon or more. So I remembered my old RIT dye experience from many years ago and thought I would give it s shot. Black is cheaper than Umber......and I'm tight. Grin.
Now you know the rest of the story. Foggy
EDIT: OH....and I forgot the most important part.....they said one or two packs of RIT dye (powder) would do a full 55 gallon drum of water....and only cost about $3 back then.