Hello,
My floors (2 inches pine boards) are from the 1930's and they have cracks/missing woods between the boards. I want to make them as originals as back then!!! I heard of some kind of LIQUID putty to fill the spaces/cracks that can be applied on the entire surface, then sanded and finished! Is there such a product out there? Or should I just use wood putty, then sand, stain, varnish, ect.....