80mm Infinity ZM Downpipe 3m Length

New and improved! Infinity ZM(310) Coated Steel Gutters

Our Infinity galvanised steel gutters, hoppers and downpipes have been improved on with a new, innovative coating of Zinc, Magnesium and Aluminium to produce an even more robust Infinity ZM rainwater system with an improved full system guarantee of 20 years.

The combination of zinc, 3.5% aluminium, and 3% magnesium in the 310g/sqm metallic coating provides a breakthrough in corrosion protection - three times better than traditionally galvanised steel (zinc alone coated metal) in outdoor tests.

With the same self-healing effect – once cut with a hacksaw (no spinning blade please - they heat up the metal and release toxic zinc fumes) - which ensures excellent edge protection (an unprecedented level of surface and cut-edge protection, even in the most hostile environments).

Longer lasting metallic finish

This version retains its shiny metallic finish for longer. Galvanised steel dulls over time, gradually becoming more ‘matt’ and weathered - a consequence of the zinc coating being sacrificed to create a hard patina or crust that protects the steel core. The new formula coating means that, while it works in a similar way to protect the core steel, the process takes longer.

Resistant to more aggressive environments

It is now more suitable for industrial environments, and suitable closer to coastal environments than ever before, as well as closer than our closest rivals can recommend.

• 15 Years at 300m-2000m from coast (C4)
• 20 Years at 2000m + from coast (C1-C3)

(the alternative for these locations, and those even closer to the coast has always been to select a colour coated version - like the Aluminium grey colour coated system, for example - instead). More corrosion resistant to run-off from bituminous materials and woods with high acidic content like Douglas Fir, Oak, Chestnut, Larch, Red cedar, and Cedar. (Materials such as cedar or birch cladding contain volatile alcohols, and oils that have a solvent action on some protective coatings applied to metal – iron and uncoated steel are much more susceptible to the corrosive influence of these woods) (the alternative in these situations has always been to select one of the 4-layer colour coated versions)

So now we can say the manufacturer full system guarantee is for 20 years (following their installation guidance – we will supply as a downloadable PDF with every order of an Infinity ZM(310) coated steel) but with proper care and sensible maintenance the life expectancy should be considerably more.