CDN is often used in tealights, votives, pillars, and containers because it provides increased rigidity and enhances burning properties for natural waxes. The KST Wick series features a flat braided wick with a special paper filament to promote maximum and consistent capillary action while ensuring a wick trimming flame posture. The difference between Stabilo KST Wick and Stabilo Wick is a subtle but vital one. The Stabilo KST curls less while the Stabilo curls more.