To fill cracks and joints prior to final sanding. A solvent based solution designed to be mixed with wood dust from the last but one sanding. Specifically designed to prepare wood prior to finishing. Allows for expansion and contraction.
 
solvent-based clear resin binder for the preparation of wood floor filler - mixed with dust collected from the sanding process and applied as an wood putty in the gaps of the boards / planks / blocks. Advantage: very short drying cycle - hard within 30 minutes.

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