Cons of Thermofoil
One of the limitations to thermofoil is that it can only be applied to engineered wood such as MDF and particle board. If it’s applied to solid wood, it has the tendency of peeling off rather quickly. Thermofoil also helps to protect MDF as it easily chips and swells with water if not covered. If this happens, the MDF is damaged permanently as it cannot be fixed. In the process of manufacturing MDF, it may contain formaldehyde, a toxic chemical, as it is a component in the glue. This can off-gas for months to years after, however, with current voluntary industrial actions and legislation, the glue may or may not contain formaldehyde.