WARNING! YOU MUST LEAVE THE CAP ON THE BOTTLE VERY LOOSELY SO THAT THE PRESSURE FROM THE CHEMICAL REACTION CAN BE RELEASED OR THE BOTTLE WILL BLOW UP. MY BOTTLE EXPANDED TO THREE TIMES ITS NORMAL SIZE. ANOTHER PERSON HAD A BOTTLE EXPLODE IN HIS WORKSHOP!
First, I need some more weathering materials. The area I'm working on needs something not so black, but more reddish. I think its time to whip up a batch of Dr. Wesolowski's Weathering Goop. Invented back in the seventies by the renowned scratchbuilder Wayne Wesolowski, it has a reddish brown hue. We only need fine steel wool and a bottle of vinegar.
Tear up the fine steel wool and immerse it in the vinegar. I take out about half of the vinegar and stuff torn bits of steel wool into the bottle. Once I put in enough steel wool, I'll pour the rest of the vinegar back into the bottle.
I cap the bottle, and as always, I write the name of the chemical on the bottle.