Latex DRC loss with storage time

Latex Producer: I observed that the DRC (Dry Rubber Content) of our latex concentrates tends to reduce on storage after some months. Why?

JohnWoon: Strictly speaking, in the standard testing method that most of us are using for DRC, the actual rubber content does not truly contain 100% rubber. Besides the rubber, you have the so-called non-rubbers. These non-rubbers on the rubber particles in time could get hydrolysed and dissociate itself from the rubber, hence the lower DRC content you observed.

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