Kao Collins CM631 (Invisible Fluorescent Blue)

Kao Collins Product number CM631 CM631 is an invisible ink that is only visible under an ultraviolet (black) light. This ink can be used on both offset and coated stocks that do not contain optical brighteners. The CM631 invisible ink is great for security and insert/envelope matching applications. Benefits o Fluid Base : Aqueouso Colorant: Proprietaryo Flash Point: >100Co Shipping Info: Non-Hazardouso Shelf Life: 1 Yearo Decap time: >48 hours Shipping notice: This ink may require additional processing time before it ships. Expedited options such as Next Day Air apply to transit time after your order has shipped and do not guarantee same day shipment. This is NOT a refilled product.