If it's well cured you should have no trouble rubbing out a polyurethane finish. Rubbing out a finish means working it with a mild abrasive such as pumice or steel wool. Any tips on rubbing out a water based finish? Rubbing out a poly finish can be done, but as you suspect, there's a hazard built in because of the difference in the finish. Ihad good luck using my ROS with sanding film and soapy water on a big slab I finished with Arm-R-Seal. The abrasive produces extremely fine, uniform "scratches" that go in the direction of the wood grain, helping to hide both brush marks and the "orange peel" texture common to sprayed finishes. Even after a finish dries to the touch, there is an additional period of time before the finish is up to full hardness. February 2019. Rubbing Out Arm R Seal & Questions Rubbing ... varnish, oil, or polyurethane. ⚛ The information about Rubbing Out Polyurethane Finish 7 Easy Steps To Rub is completely presented here. Lacquer, Shellac, Water-Based Finishes: 1 week there is a reason why it's extremely popular. In some cases when I want a satin finish, I will apply a coat of satin as the final coat. And since it dries faster than any other finish, I'd try rubbing it with a brillo pad or scotchbrite (and water or oil as lube) after a few days or a week to get an even dull sheen rather than a strong gloss. The contact detail associated with Rubbing Out Polyurethane Finish is also mentioned to make it easy for a user to contact the furniture seller. The second (and subsequent) coat(s) remelt the coats preceeding it, allowing the finish to flow together. Polyurethane is a reactive finish; the finish is actually in layers. Perhaps they are referring to between coats. In other cases, I will use rubbing out techniques to dull down the finish. Fortunately rubbing to a satin finish is easier:1--Sand the surface flat so there are no ridges, brush marks, depressions, dust specks, etc. poly isn't really a bad finish. Lacquer is an evaporative finish. My approach to Arm R Seal is to build all of the coats with gloss, wiping it on, wiping it off, then letting it dry overnight. Anyway, here’s a general guideline for wait times. I did it for the same reason you want to, to eliminate some finishing defects and give a uniform flat, smooth surface. sure, it might yellow over time if left out in the sun for years and years at an extreme case but it's also extremely durable and wear resistant. Some people have posted that steel wool should never be used with a water Bourne finish due to rusting issues, but I can't see how it would rust if the finish is cured and used after the final coat. Yes, this terminology is very hard to discuss with a straight face. – piojo Apr 25 '17 at 10:45. But this is something to try as a fun experiment, not if you need a guaranteed result. I use wet/dry paper and a wood block to do this. my walnut coffee table i've had for years and years was finished with 4 coats of polyurethane and i NEVER use coasters. The harder the finish, the better it responds to rubbing out. Water-based finishes can be a bit difficult to rub to a high gloss, especially finishes that contain a high percentage of urethane resins.

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