The Flash Harry Squeeze 'n Seal (1L) – Black is a high-performance, versatile sealant designed for waterproofing, filling, and sealing gaps, joints, and cracks on a variety of surfaces. Its easy-to-apply squeeze formula ensures precise application, forming a durable, flexible, and water-resistant se..
The Flash Harry Squeeze 'n Seal (1L) – Grey is a high-performance, versatile sealant designed to fill, seal, and waterproof cracks, joints, and gaps on a variety of surfaces. Its easy-to-apply squeeze formula allows precise application, forming a durable, flexible, and water-resistant seal. Ideal fo..