Top quality Danish Oil is made to be absorbed into wood, protecting, nourishing and ‘feeding’ the wood from the inside. They do, however, show scratches and wear marks more and more over time as the finish layer becomes etched. It was incredible, it restored just like new, repeals water like a medieval crewman repealing borders on his ship, and – literally – looks like new. With penetrating oils, most hardwood floor repairs simply require an application of a cleaning solution and simply re-oil the problem area. With polyurethane there is concern about lap lines, feathering, and streaking in an application that can result in a poor looking finish.
The natural oil used to finish Castle Combe oiled floors is not a surface coating but is designed to become part of the wood by penetrating, bonding with, and hardening the fibers of wood. That being said, they do offer comparatively less protection to the surface than an aluminum oxide finish. As a result, oil makes wood look richer and more translucent without adding a film on the surface. I would use linseed and a single application is enough if the wood is bone dry the oil penetrates right through. I am not sure what we will do. I suppose we could sand the stain and reapply oil but I am afraid that we will be doing this for as long as we have the floors.
I’m probably going to use Watco Danish Oil Natural, and top that with a few coats of poly. So, I showed a carpenter a picture and he recommended sunflower oil to darken the entire floor. For a floor I would consider using boiled linseed which has drying agents added, this makes it set more quickl;y, not good for on food surfaces but fine on a floor. Now I do keep a plastic board in the house and I can see why some folks believe them to be less sanitary.
WARNING: Cloth rags and or ANY waste soaked materials with product such as Ipe Oil may spontaneously catch fire if incorrectly disposed of. After each use, immediately put cloths, steel wool and waste inside a sealed, water-filled metallic container. This allows periodic maintenance and re-oiling without the need to find the right colored oil to match the original color that was applied at the factory. Oil finishes can also be refreshed from time to time as needed without any great hassle, unlike urethane finishes which must be removed completely and reapplied as though the wood had been laid down new.
I would be careful to ensure that it is a good quality pure tung oil that you purchase. Tung oil is able to move and flex as wooden surfaces expand and contract with age and changing temperature. As always…follow the ingredient manufacturer’s safety instructions (especially regarding storage & disposal), try out your finish on a test-board and wear your vapor-mask, rubber gloves and goggles. Its beautiful knots give its natural look while its closed grain, with slight definition, gives the hickory its somewhat rough texture. Spraying wastes a great deal of the finish material, and the organic solvents are dispersed into the air.
With proper care and adherence to all recommendations regarding floor maintenance, Silk Oil floors will last a lifetime. Wax requires a great deal of upkeep once applied and negates many of the benefits of a natural finish. Because they do not dry to a solid film, non-drying oils are considered a wood treatment, but not a finish. Floors with oil and water-based polyurethane finishes sometimes require a full sanding and re-application of finish to repair damage and wear. I steel wooled it out until the wood had no oil left on top and was ultra-smooth.
When deck builders need their customer’s hardwood projects to last 75 years or more and maintain its natural beauty, they turn to Ipe Oil deck oil. To ensure your flooring’s natural tones and colors will not be compromised, make sure the oil you use is pure and that heavy metal driers have not been added, which can blacken with UV exposure and discolor your flooring. USBC and LEED have identified hardwood floors as the healthier and more sustainable choice in flooring.
Tung oil (china wood oil) received wide application in China: in the building trades as a treatment for both stone and wooden structures; in marine trades as a preservative and water repellant on wooden boats. I have been restoring an 1890 Brownstone in Hoboken, NJ and encountered problems with the proper floor finish to use on my 100+ year old parquet floors. Even though linseed oil that has actually been boiled is still available – it’s called heat-treated or polymerized oil – most of the boiled linseed oil sold these days is raw oil that has been mixed with chemical additives to speed up the drying time.
You can use a water-based polyurethane over an oil-based poly as long as the old finish has completely cured (two to three weeks). Oil and oil-based varnish, solvent-based lacquer and shellac all deepen the color of the wood and increase surface luster the most. Smear a thin layer of liquid wax over the floor to return the seal that had come out during the cleaning process. Ipe Oil provides a strong U.V. protection barrier all while maintaining the natural finish of your hardwood deck. There are two primary options for renewing and repairing the finish of a hardwood floor. Oil-based polyurethane accents hardwood with a golden shade, and this warm tone darkens slowly with time.