Sealing Shiplap Backsplash: A Comprehensive Guide
Shiplap backsplashes have become increasingly popular due to their rustic charm and easy installation. However, to ensure longevity and maintain that fresh, clean look, it's crucial to seal your shiplap backsplash. This guide will walk you through the process, from selecting the right sealer to applying it like a pro.
Why Seal Your Shiplap Backsplash?
Sealing your shiplap backsplash serves several purposes:
- Protects against moisture and stains
- Preserves the wood's natural beauty
- Makes cleaning easier
- Enhances durability
Choosing the Right Sealer
Selecting the right sealer is crucial. Here are three popular options:

Polyurethane
Polyurethane is a popular choice due to its durability and water resistance. It comes in oil-based and water-based formulas. Oil-based polyurethane offers better protection but has a longer drying time and strong odor. Water-based polyurethane dries faster and has less odor but provides less protection.
Polyurethane-Varnish Blend
This blend offers the durability of polyurethane with the clarity and sheen of varnish. It's an excellent choice if you want to enhance the natural grain and color of your shiplap.
Wax
Wax sealers provide a natural, matte finish. They are easy to apply and repair but offer less protection against moisture and stains compared to polyurethane.

Preparing Your Shiplap Backsplash
Before applying the sealer, ensure your shiplap backsplash is clean, dry, and free of any dust or debris. Sand any rough spots with fine-grit sandpaper, then wipe off the dust with a damp cloth. Allow the wood to dry completely before sealing.
Applying the Sealer
Now that your shiplap is ready, it's time to apply the sealer. Here's a step-by-step process:
Gather Your Tools
- Sealer of your choice
- Natural bristle paintbrush (for oil-based sealers) or synthetic bristle paintbrush (for water-based sealers)
- Rags or old t-shirts for wiping excess sealer
- Sandpaper (fine-grit, if needed)
- Safety gear (gloves, goggles, and a mask)
Apply the Sealer
Using your paintbrush, apply the sealer in the direction of the grain. Work in small sections to prevent the sealer from drying too quickly. Use even, smooth strokes, applying a thin, even coat.
Let it Dry
The drying time varies depending on the sealer used. Follow the manufacturer's instructions for recommended drying times. Most sealers require several coats for optimal protection. Lightly sand between coats with fine-grit sandpaper, then wipe off the dust before applying the next coat.
Caring for Your Sealed Shiplap Backsplash
With proper care, your sealed shiplap backsplash will maintain its beauty for years. Clean spills promptly, and avoid using harsh chemicals. Reapply sealer as needed, typically every 2-3 years, to maintain its protective barrier.
Table: Sealer Comparison
| Sealer | Protection | Drying Time | Finish |
|---|---|---|---|
| Polyurethane | High | Long (oil-based), Short (water-based) | Glossy or Satin |
| Polyurethane-Varnish Blend | High | Medium | Glossy or Satin |
| Wax | Low | Short | Matte |
More Details
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28.12.2016 ... Seal along the countertop and the edge of your plank with a clear, sink and tub grade sealant, to make sure no water creeps up under your planks ...

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21.01.2026 ... ... seal the counter gap? I ran a bead of silicone along the countertop ... Part 2- installing peal and stick backsplash in my kitchen!

17.05.2016 ... We found some trim that is 1" wide that's perfect to finish off the edges, and Rex mitered them, it looks dreamy in person! I gave the back ...
