What Do They Dye Mulch With

The dyes used in coloring wood mulch are primarily of two types: carbon-based dyes and iron oxide based dyes. Iron oxide, the most commonly used dye, is simply a compound of iron and oxygen.

Is the black dye in mulch toxic?

What about the dye? The typical dyes used for colouring mulch are iron oxide-based and carbon-based. … Carbon, used to produce black mulch, is an element often used for ink or paint. Both bases for these dyes are considered natural, non-toxic and safe for handling.

How do they make different color mulch?

1. Wood is brought to a processing facility where it is passed through grinders, creating smaller wood fibers or bare mulch.
2. The mulch enters a coloring system, whereby ultra-concentrated, environmentally safe colorant is mixed with water and applied to the wood fibers.