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DMDM hydantoin upper limit. 0.6% pure preservative or liquid with is 0.33% preservative?
Is the maximum usage rate of DMDM hydantoin 0.6% of this 55% liquid blend or pure preservative which is 1.1% of this 55% liquid blend?
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4 Replies
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That is upper limit — start with 2000-2500 ppm active
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@PhilGeis 6000 ppm active preservative is the upper limit correct?
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No - that’s way too much
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@PhilGeis thanks