Thread: Mulch Coloring
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Old 11-01-2011, 10:06 AM
mgoblue mgoblue is offline
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Join Date: Oct 2011
Location: Michigan
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Called the manufacturer to pose this question to them this morning. Here is a summary of their answer to me. In summary the answer is that it does not contain anything that would require special licensing.

Colored mulch is synthetic pigment used in numerous industries (construction, plastics, pharmaceuticals) that is combined with a polymer binder that helps it stick versus pure water that would help disperse the color but not make it bind.
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