Watco Danish Oil is made from a blend of penetrating oil and varnish that stains, seals and protects in "one" solution. It comes in different stain colors.
You should slean with mineral spirits before applying and let dry (remove any oils).
It's made from mineral spirits, vegetable oil, linseed oil and varnish resins, then stain pigments. It takes a while to dry (like a lot of linseed oil based finishes), but soaks into the wood and dries "in" the wood, toughening up in the wood. You usually wipe or paint it on until it's flooded (won't soak in any more). Wait 30 minutes, then reapply. 15 minutes after the second coat, wipe off any that is not soaked in (clean). Some people put on a third coat the same way as the second. Takes about 10 hours of drying to be usable or handle-able.
When it dries (about 3 days) it will have a deep look to it with a hard silky fell to it. It will darken the wood, even if you are using "natural" color and are not meaning to.
You can put a polyurethane coat over it, but you have to wait for it to dry at least 72 hours before doing that. Other wise the poly coat won't lay right.
I know a lot of people who like that finish. Being how it works and where it gets hard, that would be similar in characteristics with Theo's method, where the thinned down glue soaks in and gets hard. (I've used that also.)
Notes- Some people it irritates their skin on contact. It gives off lots of petroleum odors (needs open ventilation) and it is very highly flammable. (Watch how you store your rags.) You can clean up your brushes and such with mineral spirits or paint thinner.
Things do not glue bond well to it after this finish is applied, so if you have plans to glue something to it...
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Last edited by MAFoElffen; 11-25-2013 at 12:55 AM.