Clariant Masterbatches earn ‘OK’ certification for home and industrial composting

Clariant color and additive masterbatches made in five plants in Europe and Asia have been awarded ‘OK compost Home’ and ‘OK compost Industrial’ labels by the TÜV AUSTRIA Belgium NV testing company. The certification means that the masterbatch ingredients, including the polymer carrier, will not compromise the biodegradability of the plastic products and packaging in which they are used. The masterbatches are formulated and independently tested for compliance with EN 13432:2000 – the widely recognized European standard for heavy-metal content and plant toxicity, as well as the EU Packaging Directive (94/62/EEC). Clariant plants in Poliagno, Italy, and Sant Andreu de la Barca, Spain, initially received OK compost Industrial certification in 2012, and the latest testing adds the more challenging OK compost Home label to their products. This means compostability is guaranteed not only in industrial composting plants but also in-home garden compost heaps, where conditions are less controlled, and breakdown is achieved much more slowly. In addition, plants in Ahrensburg and Lahnstein, Germany, now are also compliant with both standards. The Clariant plant in Phanthong,…

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