LEVEL PLAY The experts at F. Ball & Co. Ltd. advise on how to select the optimum levelling

It is widely known that the application of a suitable levelling compound helps to ensure a perfectly smooth base for the receipt of new floorcoverings by preventing subfloor imperfections transferring to the finished installation. To guarantee an attractive finish for years to come, it is important to choose the optimum levelling compound for the job at hand.

General-purpose levelling compounds are ideal for many situations. However, there are scenarios when it is recommended, or even essential, to use a levelling compound with special features, such as when working to tight timescales or over calcium sulphate screeds.

FAST-TRACK APPLICATIONS Recent innovations in levelling compounds have helped to speed up the subfloor preparation process, supporting contractors under pressure to meet tight deadlines, without compromising on finished results.

Fast-track levelling compounds are now available with the fastest-drying options offering a walk-on hard time from just 30 minutes and will be ready to receive floorcoverings in as little as 45 minutes following application. Many are suitable for use over a wide range of subfloor types, including sand/cement screed, concrete, and waterproof surface membranes.

ADHESIVE RESIDUES Another development that has sped up subfloor preparation


is the formulation of levelling compounds that can be applied directly over old adhesive residues, eliminating the need to spend valuable time mechanically removing them. They also have the benefit of allowing contractors to use the same product in situations where newly installed subfloors and areas with old adhesive residues present are next to each other.

In most cases, there is no need to apply a primer beforehand, saving further time and expense. The best of these levelling compounds are usually able to accept foot traffic about one hour after application and are ready to receive new floorcoverings from around three hours later.

FLEXIBLE SUBFLOORS When working over flexible subfloors, including plywood or steel, the application of a flexible levelling compound is recommended to accommodate movements in the subfloor.

Movements in flexible subfloors can cause other levelling compounds to crack, leading to visible fissures showing through the floorcovering, and potentially floor failure. F. Ball and Co. Ltd.’s Stopgap 700 Superflex is reinforced with tiny fibres that maintain the integrity of the levelling compound and prevent any cracks from showing through the floorcovering as a result of subfloor movement.

HEAVY-DUTY APPLICATIONS When it comes to floors that will be subject to heavy loads or

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