Used in tealights, votives and containers, zinc-cored wick is the coolest of the cored wicks. It has the most rigidity and is best used in paraffin wax (and shouldn't be used in natural wax). Like the other cored wicks, the zinc core is surrounded by 100% natural fibres.
Note that all wicks should be tested; different burn qualities will be observed dependent upon various factors in your candle such as the fragrance oil, additives etc.
28-24Z - tealights and small votives
36-24Z - small 1-2 inch containers and votives
44-24-18Z - medium 2-3 inch containers and votives
44-32-18Z - medium to large 3.5-4 inch containers
60-44-18Z - large 4 inch containers