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Prepare Polyurethane and Understand Application Rules

5:35
8:21
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At 5:35 in

Hardwood Floors-Repair, Refinish, and Restore - DIY Home renovation

What happens here

Once the floor is meticulously clean and completely free of dust, prepare the polyurethane finish for application. The video specifically uses Minwax Super Fast-Drying Polyurethane for Floors (Gloss finish). It is absolutely crucial to always read and understand the instructions on your specific product, as application rules, such as sanding requirements between coats, can vary significantly between brands and types. For the Minwax product demonstrated, if you re-apply a new coat within 3 to 4 hours of the initial coat, no sanding is required between coats. However, if more than 12 hours pass between coats, you must lightly sand the floor with 220-grit sandpaper and thoroughly re-tack it to remove all dust before applying the next coat to ensure proper adhesion. This particular product recommends applying three coats over bare wood, or two coats if you are going over an existing, previously finished floor. Before starting application, gently stir the polyurethane thoroughly; never shake it, as shaking can generate air bubbles that will show up in your finished product and compromise its appearance.

Goal: Prepare the polyurethane finish and understand the specific application guidelines for optimal results.

Tools and materials

  • 220-Grit Sandpaper — For light sanding between coats if more than 12 hours have passed since the previous coat
  • Stirring Stick — Thoroughly mixing the polyurethane without introducing air bubbles

What they say

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Yep. Now that you got your house cleaner than it's probably ever been or ever will be again, if it's anything like my house, you can think about applying the finish to the floor. Now, for today's video, we're going to be using a super fast drying polyurethane design specifically for floors. I want to caution you to read the instructions on whatever material you choose to use. Now, in this case, as long as we reapply the product within 3 to 4 hours of the initial coat, we don't have to sand in between. But if for some reason we can't do that and we allow it to dry more than 12 hours, we have to take a light 220 grit sandpaper in between coats and then we have to retack it to remove any dust we generate before we can apply a second coat. Now, this product recommends using three coats over bare wood. If you happen to be going over an existing floor with an existing finish, you can knock that down to two coats. Your application rag must match your material. Will either be for a water-based flooring compound or oil based. Oilbased. Gently stir your flooring compound. Never shake it. If you shake it, you'll generate air bubbles which can show up in your finished product. Now Frankie is

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