WHEN DO YOU NEED A TEMPERATURE TOLERANT ADHESIVE?
Temperature tolerant adhesives have been developed for installing resilient floorcoverings in areas where temperatures have the potential to fluctuate. F. Ball’s technical service officer Jason Tatton explains when and why you need to use a temperature tolerant adhesive and provides advice on choosing the right one.
The availability of temperature tolerant adhesives raises questions about exactly when and where they need to be used. There is confusion among some contractors about why a temperature tolerant adhesive is required to install LVTs in conservatories, for example, but not over underfloor heating. We sometimes answer calls from contractors who believe it is necessary to use a temperature tolerant adhesive to install floorcoverings where underfloor heating is present when, in fact, it is not always required.
WHY AND WHERE? Extreme temperatures or temperature fluctuations can cause floorcoverings to expand and contract significantly. This is frequently the case in heavily glazed areas that are subject to solar gain during the day, such as conservatories, which then rapidly cool at night. Over time, this can lead to unsightly tenting and gapping at the edges of floorcoverings, particularly between adjacent vinyl tiles or planks. Once fully cured, usually after 24 hours, temperature tolerant adhesives hold floorcoverings firmly in place, restricting these movements and ensuring the long-lasting performance of installations.
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However, temperature fluctuations as a result of underfloor heating systems are much more gradual and less extreme than changes in temperature resulting from solar gain, which can be much more sudden and range up to +60°C. To meet British Standard guidelines of resilient and textile floor coverings, underfloor heating systems should not exceed 27°C at the bond line. Temperature tolerant adhesives are therefore only necessary where there are heavily glazed areas, including conservatories and areas with floor-to-ceiling windows. F. Ball’s full range of adhesives can be used over all kinds of underfloor heating.
Where a temperature tolerant adhesive is required, there are a number to choose from, including ones with extra features, such as pressure sensitive characteristics, and F. Ball’s technical service department often receive questions about which product they should use for a particular project.
WET-LAY ADHESIVES Wet-lay temperature tolerant adhesives are available for contractors who are installing vinyl floorcoverings in areas that will be exposed to high temperatures. After applying the
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