Introducing Cardboard Coaster–Super Absorbent & Disposable for Drinks. Keep surfaces dry and branding visible with our Cardboard Coasters, made from 1600gsm water-absorbent cardboard material. Ideal for pubs, cafés, events, or promotional giveaways, these lightweight coasters effectively absorb condensation from cold beverages and offer a smooth surface for vivid custom printing. A perfect solution for disposable use without sacrificing quality or style. Made from 1600gsm water-absorbent cardboard. Available in both square and round shapes. Perfect for cold drinks, beer, and cocktails. Disposable and eco-friendly. Smooth surface for full colour print. Ideal for bars, events, or brand promotions.