Seal Stained Treads

What happens in this clip

After the stain has completely dried, apply four coats of a clear sealant, such as Varathane NanoDefence Premium Clear Floor Finish (Satin), to protect the treads. Apply thin, even coats, allowing each coat to dry for the recommended time (2 hours for re-coat) before applying the next. This step will protect the stained wood from wear and tear.

Goal: Apply multiple coats of clear sealant to protect the stained stair treads.

What's used

Tools

• Fine-Grit Sandpaper
• Paint Brush or Foam Applicator

Materials

• Varathane NanoDefence Premium Clear Floor Finish (Satin) Varathane
• Rust-Oleum Varathane Water-Based Ultimate Polyurethane

About the full video

This project details the process of transforming carpeted entryway stairs into sleek, modern hardwood stairs with dark stained treads and white painted risers. It covers everything from removing old carpet to preparing the surfaces, filling imperfections, sanding, staining, sealing, and finally painting, while providing practical tips for DIY enthusiasts.

Step 7 of 9: Apply Finish to Wood Treads

Apply your chosen stain to the wooden treads, following the grain. Wipe off excess stain after the recommended time. Once the stain is dry, apply two coats of a durable polyurethane or varnish to protect the wood. Allow adequate drying time between coats.

Open this step in the guide

Every video in How to Update a Spiral Staircase

1. Step 1: Assess Existing Staircase Condition

   • 1:02–1:35 Visually Inspect for Staircase Wear and Damage
   • 0:00–0:53 Assess Damage & Prepare for Repair
   • 0:15–0:30 Initial Inspection and Hazard Identification

2. Step 2: Clean and Degrease Components

   • 2:29–3:41 Prep Day: Cleaning and Sanding
   • 1:52–2:08 Scrape Loose Paint Flakes
   • 0:34–0:40 Mechanically Remove Loose Rust and Flaking Material

3. Step 3: Prepare Metal Surfaces for Finishing

   • 0:37–0:41 Sand the Staircase
   • 0:07–1:27 Sand and Prime the Staircase
   • 0:32–1:08 Clean, Sand, and Tape the Staircase

4. Step 4: Prepare Wood Treads for Finishing

   • 0:20–0:25 Sand and Finish Treads
   • 0:21–1:25 Prepare Treads (Sanding and Cleaning)
   • 2:06–2:52 Sand Stair Treads and Risers

5. Step 5: Apply Primer to Metal Components

   • 0:20–0:23 Apply Rust-Inhibiting Primer
   • 2:51–3:32 Apply Oil-Based Primer
   • 0:32–1:06 Apply Rust-Inhibiting Primer

6. Step 6: Apply Finish to Metal Components

   • 3:22–4:09 Paint Metal Frame (Top Coat)
   • 0:14–0:28 Apply Oil-Based Enamel Topcoat to Iron
   • 2:25–2:48 Apply Top Coat Paint

7. Step 7: Apply Finish to Wood Treads

   • 4:29–5:04 Stain New Stair Treads
   • 3:22–3:28 Stain & Seal Stair Treads
   • 3:41–4:00 Seal Stained Treads (this video)

8. Step 8: Reassemble Staircase Components

   • 0:47–0:50 Reinstall Metal Railing
   • 0:22–0:31 Secure All Treads and Joints
   • 13:30–15:00 Install Stair Treads with Mechanical Fasteners

9. Step 9: Final Inspection and Touch-ups

   • 1:08–1:37 Final Assembly and Inspection