Gary Beasley
Member
A nice touch for acrylic blanks is to use a colored tube so the brass doesnt show through. I was helping my granddaughter make a pretty pen and we swapped the tube for a powder coated white tube. This leaves a perfectly good brass tube with nowhere to go and I got to thinking of a good way to use it and remembered about brass black metal finish. So I ordered some. Following the directions sand with fine sandpaper and wipe with denatured alcohol to remove the oils. Wipe the solution on with a cotton swab, let set for five minutes and rinse with clean water. Wipe and rinse several times till the tube gets as dark as it will get. It made on mine a dark gunmetal grey that should not create color casts under the translucent areas of the acrylic and deepen the tones a bit.