Matte Bright Red Oxide Pigment Powder - 142g/5oz - Concrete Pigment, Cement Color Pigment, Resin Epoxy Dye, Colorant For Gypsum, Plaster, Putty, Grout, Lime, Paints

I used it to mix with white grout on a mosaic piece and it worked great.

I mixed this with cement tile sealer to restore color to damaged cement tiles and it worked beautifully. The powder is so fine that it mixes instantly without clumping. The color shown is a true representation of the color in person.

Worked well pretty color

Used this to stain concrete, great results

Beautiful

I did not know what red iron oxide pigment powder was so I looked it up. "Red oxide pigment powder is primarily made of iron oxide compounds, specifically ferric oxide (Fe2O3)." It had a couple images of it and it was dark red. So I looked up how can red oxide pigment powder be made brighter. It said that the compounds had "various grades designated by numbers, typically ranging from 120 (lighter) to 180 (darker)".One other thing I was concerned about was if it were toxic, and it is not. But in the powered form it does caution the use of it. One must wear a respiratory mask and gloves while handling it.It should not be inhaled either. I did not know that when I opened the package. The main package is a plastic bag much like the ones used for beads and other craft items. This bag was in a mylar bag. When I opened the mylar bag I could smell the fragrance. Fortunately I was not inhaling the power as it was in the closed bag. However, I could feel some sort of residue on my hands that left the fragrance on my hands. The research I did (after I handled the bag) also cautioned to wash hands that handled the power. Since I did not know, and still do not know, what was the stuff that was getting on my hands, I washed my hands and I now know to use gloves from now on. I think I will be pouring the pigment in a jar to keep from handling the bag with the residue.The research I used also mentioned all the properties: its "excellent tinting strength, high color purity and stability, resistant to fading or bleeding, good light fastness, heat stability, and weather resistance." and more. This makes for a good quality pigment for use in resin, candle wax, cement, and many more compounds. So I highly recommend this red oxide pigment powder.

I got this because I needed a really intense red for my epoxy resin projects, but I was disappointed to find that the powder does not mix well with 1:1 shallow pour epoxy. The powder clumped up rather than spread through the resin, and the overall consistency of the resin was affected. There must be some kind of chemical reaction triggered between the two, because the resin did not at all behave like it usually does. So if you're looking for a red for your resin, stick to alcohol inks and mica powder.

I tried with the all-purpose cement and the colors doesn't change as much was I was hope it would be. It wasn't as bright.