Water Clear Casting Resin: Including Catalyst This resin is used to make paperweights, preserve medical and biological specimens, and is widely and successfully used in the making of costume jewellery. Water Clear Casting Resin can also be used by modellers to make ponds and streams or various water effects in landscapes. Includes 1kg resin, catalyst and syringe for measuring catalyst. As this is a polyester resin it should be used in a well-ventilated area. It is NOT suitable for children. PLEASE NOTE: Because of the hazardous chemicals in this item, it cannot be delivered to offshore UK addresses or Northern Scotland. Sorry!