Gutterseal is a fully bonded, liquid gutter lining from Liquasil. The image here is for representation only. Compnents are Liquasil One, Non Sag Sealer and SWT Primer

Gutterseal – the seamless, fully bonded gutter lining

At last, a liquid gutter liner that actually works!

Suitable for metal, cast iron, concrete and asbestos cement gutters, the Gutterseal system comprises our marine-grade anti-corrosion primer, a specially formulated sealer for the joints and our unique single-coat silicone finish to create a seamless finish throughout.

Gutterseal Installation Instructions

Liquid gutter lining from Liquasil Ltd

Liquid Gutter Liner & Gutter Repair System

The Liquasil liquid gutter liner system forms a completely seamless and highly flexible lining and gutter repair system that will eliminate leaks.

Fully bonded to steel gutters, the systems utilises our SWT Primer, a proven, marine-grade, anti-corrosion primer that stops rust in its tracks. All joints are sealed with Non-Sag Sealer, a silicone compound that is unique to Liquasil, before being overcoated throughout with Liquasil One to form a permanent liner.

Being a liquid gutter liner, the system is suited to the most complex of gutter configurations, because unlike physical gutter liners, it goes around corners and is completely seamless, so there’s nowhere for leaks to develop.

The Liquasil liquid gutter lining system has a product warranty of 15 years as standard.

We call our gutter liner system “Gutterseal” – a generic name to encompass the entire system, though it is made up of a small number of component parts.

Commercial and industrial property gutter systems often cause difficulties as they age and each type has their own specific issues.

Common to all however, is leakage at the joints and for this reason, we have included our Non-Sag Sealer within the Gutterseal system to eliminate joint leaks at their source, without the need to remove any fixings or replace rotted seals.

The difference between a physical gutter liner and a liquid gutter liner is that the physical liner is essentially a gutter within a gutter, whereas the liquid liner is something that is permanently bonded to the surface.

We believe our liquid gutter liner is often the best option for resealing industrial and commercial gutters, but there are some circumstances where it may be more desirable to install a physical gutter liner instead.

Physical gutter liners are usually made from a plastic based material that is made to measure for each installation and then rolled out in-situ.

The main advantage of such a system is that no structural or other repair is necessary to the original gutter before installation.

This speeds up installation, especially on larger girth gutters.

In most cases, outlets (even siphonic outlets), corners and T-Junctions will be custom-moulded by the manufacturer and the gutter itself supplied on a seamless roll. The gutter lining is usually held in place with clips.

With our liquid gutter liner, the gutter is first cleaned and then dried thoroughly. Surface rust is treated and all joints and holes are sealed before the liquid liner is brushed or rolled into the gutter.

The liner dries in just a few hours and is fully cured in a day or two depending on the weather and temperature, to form a seamless, fully bonded liner that becomes part of the original gutter.

Each type of gutter liner has its advantages and disadvantages and, unlike some manufacturers, we are happy to discuss your requirements and make an unbiased assessment as to which type of gutter liner system will suit you best.

Liquasil's liquid gutter lining system
Liquasil gutter liner
concrete gutter liner from Liquasil
Liquasil liquid gutter liner system

Cleaning Gutters Coated With Gutterseal

Coated gutters will still be susceptible to soiling and debris accumulation in the same way as any other gutter.

Cleaning is a relatively simple process, as long as care is taken not to damage the coating.

The Gutterseal lining system is made from silicone, which is a soft coating. The thickness of the coating is around 750 microns to 1mm in general, but a much thicker coating is applied at the joints.

To ensure that the coating system is not damaged, please avoid using sharp scrapers, particularly metal, as these could damage the coated surface.

Leaf and other debris should be manually removed from the gutter (gutter vacuum cleaners may be used) and then the gutter should be rinsed through with clean water.

Low pressure jet washes may be used to remove any surface algae that might be present and Liquasil can also provide a compatible anti-fungicidal wash to kill any fungal growth that might be present on the surface.

All gutters should be examined and cleaned at least annually and more frequently if the premises are in close proximity to trees, or if nesting birds are present on the roof.

If any damage is noted to the gutters, Liquasil can provide additional product to be applied to the damaged area(s).


If you are interested in specifying the Gutterseal system on a commercial or industrial roof project, or just wish to speak to somebody about the product, please call 0121 709 5352 and one our surveying team will talk you through the advantages and provide you with whatever information you need.