Why is underfloor heating a challenge for floor finishes?

Underfloor heating constantly increases the temperature of the floor, which can cause movement in the wood. These temperature fluctuations, combined with the natural expansion and contraction of wood, can make floor finishes less effective in adhesion and more prone to wear. Additionally, the heat can cause a phenomenon known as edge bonding, where the finish sticks between the planks, causing damage as the planks expand or contract. This makes it important to choose a primer that not only adheres well but also prevents these issues.

Bona Classic reduces the risk of edge bonding with underfloor heating thanks to its high filling power and fast drying time.

Bona Classic is a water-based, one-component acrylic primer specifically developed for wooden and parquet floors, including those with underfloor heating. Thanks to its high filling power, Bona Classic ensures that the surface is well-filled, which not only enhances the aesthetics but also improves the adhesion of the topcoat. Moreover, this primer reduces the risk of edge bonding, a common issue with underfloor heating. The fast drying time of Bona Classic allows for quick floor finishing without compromising adhesion quality, ensuring that the floor remains in good condition even under challenging conditions.