This 0.5 gallon (64 oz) postage meter sealing solution is a universal moistening fluid designed for professional mailing operations. It is compatible with all major postage meter systems and is formulated as a replacement for Quadient Sure Seal and Pitney Bowes E-Z Seal sealing solutions. This sealing fluid activates adhesive quickly and evenly for secure sealing of envelopes, water-activated gummed tape, and mailing labels, making it an ideal all-purpose solution for mailrooms, offices, fulfillment centers, schools, and shipping departments. The bulk half-gallon bottle is perfect for high-volume mailing environments, reducing refill frequency while improving workflow efficiency. The formula is non-toxic, safe for everyday handling, and engineered to provide consistent moisture control without over-saturation or adhesive buildup. Made in the USA, this premium sealing solution is engineered to meet or exceed OEM sealing solution performance standards, providing reliable results and a cost-effective alternative to expensive OEM fluids.