Clariant won the stadium seating contracts because of its &ldquotechnical expertise, reputation, product value proposition and the fact that we could supply not only color but also a uv stabilizer and flame retardant in a single combibatch,&rdquo explains mayendran pillay, head of clariant&rsquos masterbatch business unit in southern africa. A &ldquocombibatch&rdquo is a custom masterbatch containing color and one or more functional additives. The concentrated color and additive package is added to the natural plastic resin during the molding process.