Zinsser Peel Stop – 1L is a professional-grade paint binding primer designed to seal and stabilise peeling, cracking, or chalky surfaces before repainting. This clear bonding primer penetrates deeply into porous substrates, effectively locking down old paint edges and preparing walls, ceilings, and exterior surfaces for a durable finish. Suitable for both interior and exterior use, Zinsser Peel Stop works well on plaster, wood, masonry, and previously painted surfaces. Its fast-drying formula allows for topcoating in just two hours, reducing project downtime and ensuring a long-lasting result in any decorating or renovation project.