Concrete Dye Powder Characteristics: Our concrete color pigment is waterproof, sunscreen, alkali resistance, acid resistance, easy to color, super hiding power. UNIQUE COLORS – 13 powdered pigments to choose from. Each bottle of concrete pigment comes in a resealable jar. Make sure to mix iron oxide pigment with dry cement powder first, and then add water to stir! The mixing ratios of this iron oxide pigment is 3~10%. If you are going to color 10 pounds of concrete dye, we recommend adding about 0.3 ~ 1 pounds of iron oxide pigment powder. Multi-purpose iron oxide powder - Our iron oxide powder are widely used for coloring materials such as cement, concrete, lime, mortar, paint, plastics, rubber, ceramics, glazes and paints, and can enhance the appearance of your project. They give products bright, long-lasting color. We invite you to explore our exquisite range of iron oxide powder, which are not only natural and long-lasting, but also add a unique touch to your creations and decorations. We look forward to your purchase, and start the color journey together !