Why handle potentially hazardous stain to create your concrete work of art when there are natural and non-toxic options available? Commercially available products such as Soy Crete are acid stain alternatives that are Green LEED certified and safer for the environment than acid stains.
If you prefer to do it all yourself, use coffee or iron sulfate to stain your concrete. Iron sulfate, also known as copperas, iron sulphate and ferrous sulfate, will change your dull gray concrete to a warm rust color for a fraction of the cost of acid stain. Additional advantages of iron sulfate and coffee stains are:
- Warm, lustrous colors
- No fumes
- Non-toxic and environmentally friendly
- Anyone can do it