The Maspion WSA 320 PVC Waterstop is a high-quality centre bulb PVC waterstop designed to prevent water penetration through expansion and movement joints in reinforced concrete structures. Manufactured from durable, flexible PVC, its centre bulb profile is engineered to accommodate joint movement caused by thermal expansion, contraction, settlement, and structural deflection while maintaining a reliable watertight seal. Suitable for both horizontal and vertical installations, the WSA 320 is ideal for water-retaining and underground structures including reservoirs, water tanks, swimming pools, dams, basements, retaining walls, tunnels, culverts, and wastewater treatment facilities. Designed for expansion joints where significant movement is expected, the WSA 320 provides long-term waterproofing performance for residential, commercial, industrial, and civil engineering projects.
