Floor Protection and Sealing: Hardwood and Wood

Sealing floors is a way to protect them from stains, moisture, and general wear. Floor protection and sealing applies to two areas. Wood or Hardwood Floors. 

Recently we have notices that wood floors can be painted but not sealed. They appear to have a shine but not have a sealer as a top coat. 

We recommend Water Based Polyurethane for both Wood and Hardwood Floors. See below for options.  

1. Water-Based Polyurethane

• Pros: Dries quickly, low odor, non-yellowing, and is relatively easy to apply. It creates a clear, durable finish.
• Best For: Most residential hardwood floors, especially light-colored woods where you don’t want any color change.

2. Oil-Based Polyurethane

• Pros: Durable and long-lasting; brings out a rich, warm tone in the wood.
• Cons: Strong odor, longer dry time, and can yellow over time.
• Best For: High-traffic areas, traditional looks, and when you want to deepen wood colors.

3. Penetrating Oil Sealer (Hardwax Oil, Danish Oil, Tung oil, Linseed oil)

• Pros: Soaks into the wood and enhances natural grain. Usually leaves a matte or satin finish and is easier to touch up.
• Cons: Not as protective as film-forming finishes, and may require more frequent maintenance.
• Best For: Those who want a natural look and feel, or for historic restoration.

Preparation and Process

1) We'll start by repairing any damage fill nail holes, deep scratches, or dents with wood filler. 

2) Depending your your floor, we use a sanding sponge or sanding screen with the correct grit and sand your floor by hand inch by inch. 

3) Or, we may use a drum sander along with an edge sander. 

4) If your floor is already finished and you’re just re-coating, a light sanding or screening with a buffer should suffice to help the new finish adhere.

Application Process

1) Apply the First Coat: Pour the sealer into a paint tray. Use a synthetic brush or foam applicator for water-based, or a natural bristle brush for oil-based. Work in sections, following the grain.

2) Let It Dry: Water-based dries in 2-4 hours, oil-based in 8-12 hours.

3) Lightly Sand Between Coats: After the first coat dries, lightly sand with a fine-grit sanding screen. Vacuum and tack-cloth up all dust.

4) Second (and Third) Coat: Repeat the application and sanding—2–3 coats are common for great protection.

5) Let the Floor Cure Fully: Light foot traffic is usually okay after 24 hours, but heavy furniture and rugs should wait a week or more.