Bona Gap Master Filler is a solvent and silicone free, flexible mastic filler specifically designed for filling gaps between floor boards and skirtings.
It can easily be applied with a mastic or silicon gun between the joints; it is odourless and retains a high degree of flexibility allowing movement with your floor.
Bona Gap Master Filler is available in a wide range of colours which are all kept in stock and when fully dry it can easily be sanded and over-coated with paint or lacquer.
For larger floorboard gaps we would recommend filling the gap first with a foam joint filler such as Everbuild Joint Backer Rod before using Bona Gap Master filler. Please see our Bona section for our full range of Bona woodcare products stocked.
Cold air naturally circulates below floor boards and the small gaps between the boards can easily add up to the equivalent of leaving a small window open. The Energy Saving Trust have calculated that filling the gaps between the boards and skirting joints will save around £20 per year, enabling the Bona Gap Master to pay for itself within a year.
Bona Gap Master Data Sheet
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