Single Flange Earth
Seal

The Single Flange Earth Seal is a high-performance, watertight sealing solution designed to protect building foundations where earth rods penetrate concrete slabs and damp-proof membranes (DPM). Ideal for under-raft and basement earthing installations, it prevents groundwater ingress, soil contamination, and moisture seepage into inspection pits, ensuring long-term structural waterproofing and electrical safety. Manufactured from durable, corrosion-resistant polymers and pressure tested up to 5.5 Bar (80 PSI), the seal provides reliable performance in damp and high water table environments. Compatible with standard earth rod sizes (15mm–20mm / ½”–¾”), it plays a critical role in maintaining the integrity of modern lightning protection and grounding systems without compromising foundation strength.