Brass Powder for Cold Casting Sculptures - High-Grade 320 Mesh for Inlay Work | Casting Powder Ideal for Home, Office Décor - 1lb with Anti-Oxidation Packaging(Cu-Zn Alloy) (Yellow-320 Mesh)

Super fine, no contaminants Be aware (as I am now) that it's tricky to polish or burnish the powder when suspended in a finish/paint. It goes on exactly the way it looks in the can - septic brown. Sanding will oxidize the hell out of it and smear green patina all around. Wet sanding with alcohol works pretty well to mitigate that, just be careful what you are using it on, as alcohol itself will thin or ruin some paints. I had success polishing it over paints with the alcohol sanding and, also, by burnishing the paint with a clean polished spoon (you don't polish your spoons?). However, if you're trying to use it as I was, know that it's much better to use it topically rather than integrating into a medium. I tried adding into clear varnish and, again, just clouds the medium and makes it impossible to polish. Adding it *onto* the wet varnish, however, looks awesome after polishing. I also tried fine steel wool to burnish without success, which kind of surprised me. It seems like it should work. Maybe it was just user error on my part. Here's a cool trick I learned with it: use a thin coat of (preferably high viscosity) CA glue and sift the brass powder on top, heavy, like powdered sugar before it dries. Brush off excess, then burnish by rubbing with moderate pressure using aforementioned soupware. It leaves a clean and uniform polished brass coating which looks awesome as an inlay or as faux plating. Bonus round: hit it briefly with a low flame, ie., a lighter. Some science happens and it makes it look like poured gold 🙂 Very cool! Definitely fun to play around with! I look forward to further avoiding responsibilities in the name of artistic science.

Product looks light green in container but polished up beautifully to a rich gold color. Easy to work with.

Perfect

Muy bueno

If I could give this product zero stars I would. I purchase equipment and chemicals to train our chemists. Our student researchers ran multiple tests to determine the percent composition of copper to zinc. Across 21 independent student researches they all had a percent composition of 50% copper. As a department we were confused since the product CLEARLY states that this has a composition of 70% copper. We tested it ourselves as a faculty. We too determined a percent composition of 50% copper. This product is misleading if you're hoping to have 70% copper, which is why so many people who are using it for artistic purposes may see variation of color and quality throughout this product.

It does not look like brass in the container, but has more of a copper cast. Don't let that bother you - it polishes to a nice brassy finish. In the attached picture, I laser-etched a lightning bolt into walnut and filled it with the powder. Then I saturated the area with thin super glue, let dry, sanded and polished. The finish was exactly what I was looking for.

It comes out brownish green for me.

This brass powder is very fine and will mix in quite well, or you can dust your mold with it. Make sure to use enough powder. In order to get a realistic poloshed metallic look with a high shine, you may need to sand and polish it quite a bit - it may take a couple tries in order to achieve the look you want, so perhaps start with a couple smaller pieces until you are able to perfect your process. *Don't rely on the product images in the listing to accurately represent the color. If you look at the different metallic shades available, they all have the identical images, except for the color - they are clearly photoshopped.

Excellent product. Cold to touch, heavy and real metal powder. Price meh... but what can you do when the country hits inflation and trump grabs into your pocket and hustles your money.