When to use a heavy-duty levelling compound

Seeing ‘heavy-duty’ on a levelling compound is indicative of where it’s intended to be used. Some formulations also offer important additional benefits in particular situations. Chris explains when exactly you need to use a heavy-duty levelling compound.

HEAVY-DUTY levelling compounds are designed to provide an ultra-strong, extremely smooth base prior to the installation of floorcoverings. Typically, heavy-duty formulations are required in areas subject to heavy loads and/or high levels of foot traffic. These include hospital corridors, where floors are pounded by heavy medical equipment and hundreds of patients every day; airport terminals with thousands of people passing through them with trolleys full of luggage; as well as schools and busy retail environments.

Why they work
In technical terms, heavy-duty levelling compounds, such as F. Ball’s Stopgap 300 HD, have an extremely high compressive strength, which is why they are able to deliver heavy-duty performance and cope with high levels of foot traffic.

This inherent strength is also important when installing wooden floorcoverings. Wood expands and contracts as a result of environmental factors (eg changes in temperature and humidity). Stopgap 300 HD’s strength enables it to withstand the stresses and strains exerted by the natural movements of wood floorcoverings over the lifetime of the installation.

Lower strength levelling compounds could start to crack and break up over time when subjected to this continual cycle of movement, which could eventually compromise the integrity of the floor.

Additional benefits
In addition to high compressive strength, certain heavy-duty levelling compounds offer additional benefits when installing certain types of floorcovering.

The excellent self-levelling properties of Stopgap 300 HD means the surface finish it creates is extremely smooth. This feature is very important where thin, resilient floorcoverings, including luxury vinyl tiles (LVTs), are being installed. This is because any imperfections in the levelling compound are more likely to show through the floorcovering and compromise the aesthetic appearance of the floor.

The ability of the levelling compound to deliver a super smooth surface finish avoids this problem, which can become a critical issue for the installation of high-cost resilient floorcoverings in prestigious settings. Its superior strength will also ensure a long-lasting professional flooring finish, even when subjected to heavy daily usage.

For these reasons, it’s part of F Ball’s ‘System LVT’ range, which comprises waterproof surface membranes, primers, levelling compounds and adhesives that used correctly and in combination F Ball guarantees will result in an aesthetically pleasing floor finish that lasts the lifetime of the installation.

Further information
The formulation of some heavy-duty levelling compounds, including Stopgap 300 HD, means they can be pump-applied up to 1,500sq m per day, dependent upon manpower, thickness applied and equipment used. Over a large area, such as an airport terminal, a hotel ballroom or a large, open-plan office, this can dramatically cut the installation time.

If you’re unsure about whether to use a heavy-duty levelling compound, F Ball’s technical service department is on hand to answer your questions about F Ball products and how to use them Monday to Friday, 8.30am–5.00pm.