GP® DuctSeal HG incorporates our patent‑pending tubular rubber backing system, a unique design that can be assembled as a continuous strip, formed into a ring or collar, or configured in a cross‑shape—ideal for separating refoil or triplex cables.

This innovative system not only supports DSEAR compliance, it also makes installation faster and easier by providing simple, reliable support and separation for large cables and pipework. The ULTIMATE backing system, exclusive to GP®, is combined with our new Fybrid flexible intumescent, zero‑halogen, zero‑Meko adhesive and sealing compound, Grey Stuff.

All components are designed and manufactured in the UK.

Together, GP® DuctSeal HG and Grey Stuff form a non‑hazardous, high‑performance, single‑component neutral‑curing sealant solution engineered to withstand the demanding conditions around duct openings, ensuring long‑term protection of ducted networks and service penetrations.