Outdoor Defense Oil: Long-Lasting Protection for Tongue & Groove, Shiplap, and Pine

Outdoor Defense Oil: Long-Lasting Protection for Tongue & Groove, Shiplap, and Pine

By Mallory Bennett

Outdoor Defense Oil: The Secret to Protecting Tongue and Groove, Shiplap, and Natural Materials

When it comes to preserving building materials like southern yellow pine, tongue and groove boards, shiplap siding, and other natural wood products, finishing every surface with a high-quality oil is essential. Outdoor Defense Oil from The Real Milk Paint Co. is one of the best options available.


What is Tung Oil?

Tung Oil is a natural drying oil extracted from the nut of the Tung tree. It’s valued for its water resistance and warm, rich finish that enhances the natural grain of wood. Compared to other natural finishes, it penetrates deeply, making it an excellent choice for tongue and groove ceilings, pine flooring, and interior shiplap siding.


Why Outdoor Defense Oil is Ideal for Wood Projects

Unlike many commercial “Tung Oil finishes,” Outdoor Defense Oil is crafted with pure Tung Oil, pine oil for deeper penetration, and zinc for UV and mildew protection. This makes it a durable option for wood siding, deck boards, and other exterior building materials.


Easy Application for Lasting Protection

Applying Outdoor Defense Oil is simple:

  1. Wipe or brush it on generously, covering all wood surfaces.

  2. Allow the oil to soak in.

  3. Reapply until the wood stops absorbing.

  4. Wipe away any excess to avoid pooling.

This process works beautifully for tongue and groove wood paneling, shiplap walls, and pine boards. The oil doesn’t form a brittle surface film like polyurethane, so there’s no risk of peeling or chipping.


Why Finish Every Wood Surface?

Unfinished wood—whether shiplap wall planks, pine T&G paneling, or wood flooring—is vulnerable to moisture, sun, and temperature swings. Applying Outdoor Defense Oil:

  • Extends the life of the wood.

  • Protects against cracking, warping, and discoloration.

  • Enhances the natural beauty of the grain.


Lasting Beauty for Every Project

With Outdoor Defense Oil, refreshing your finish is easy. When wood begins to look weathered, simply wipe on another coat—no sanding or stripping required. It’s the perfect solution for wood supply projects, tongue and groove pine board installations, and shiplap siding.


Final Thoughts

Finishing wood with Tung Oil or Outdoor Defense Oil is the simplest way to ensure your investment in building materials lasts for years. Whether protecting pine shiplap, tongue and groove ceilings, or wood flooring, this oil delivers beauty and durability that stands the test of time.