The Log Home Finishing Products We Use in Colorado — And Why We Trust Them

After 26 years of restoring, staining, and chinking log homes across Colorado's mountain counties, we've tested just about every product category on the market. High-altitude sun, 60-degree temperature swings, heavy snow loads, and constant freeze-thaw cycling are brutal on log homes — and even more brutal on the products that protect them. A stain or sealant that performs beautifully at sea level can fail in two seasons at 9,000 feet.

That's why we're deliberate about what goes on our customers' homes. This post is a deep dive into the professional-grade products we use every week — what each one does, why we chose it, and where it fits in a restoration. Every product below has its own detail page with full color options, so we've linked those throughout. You can also browse the whole lineup on our Products That We Use page.

Why Product Choice Matters More in Colorado

Log homes move. Logs swell in spring moisture, shrink in dry winter air, and settle under snow load year after year. At Colorado elevations, UV radiation is dramatically more intense than at sea level, breaking down finishes from the surface while moisture cycling attacks them from within.

So every product we use has to clear the same three bars:

• Elasticity — it must stretch and recover with log movement instead of cracking.
• Breathability or flexibility — logs need to release trapped moisture, not seal it in to rot.
• Proven longevity at altitude — we only use products we've watched perform on real Colorado homes for years.

Perma-Chink: The Original Elastic Chinking

For the wide chink lines that define classic log home style, we use Perma-Chink chinking from Perma-Chink Systems — the product that revolutionized the industry when it launched in 1981 and has since become the most widely applied chinking in the world.

Perma-Chink looks and feels like traditional mortar, but it's a pure acrylic that bonds to the logs and stretches as they move. Old-style mortar chinking cracks and falls out as logs settle; Perma-Chink follows the movement and keeps the seal tight, eliminating the air and water infiltration that makes older mountain homes drafty and expensive to heat. It applies blister-proof and slump-free, works interior or exterior, and with proper joint design it's a one-time application. We're certified Perma-Chink applicators.

One thing we really like is the wide variety of colors — ten in all, from classic White and mortar-style Stone to Tan, Cedar, Brown, and even Black. That range lets us match the historic white chink lines on a mining-era cabin or blend chinking into the stain color on a modern mountain estate. See all ten swatches on our Perma-Chink page.

Lifeline Ultra-2: Our Premium Exterior Stain

For exterior staining, our premium choice is Lifeline Ultra-2, Perma-Chink Systems' flagship semi-transparent stain. Few finishes can match its longevity, and nowhere is that tested harder than Colorado — Ultra-2 delivers unparalleled UV protection against the high-altitude sun that destroys ordinary stains, plus defense against mold, mildew, and water.

Two qualities set it apart on restorations. The film is breathable, so logs release trapped moisture instead of rotting behind the finish. And it absorbs evenly across varied wood conditions, reducing the patchiness that plagues semi-transparent stains on weathered, mixed-age logs. Finished with a clear Lifeline Advance topcoat, it's the lowest-maintenance exterior finish we apply, backed by up to a 5-year warranty.

The palette is the widest we offer: 21 colors, from light Wheat and Natural tones through rich Sequoia, Chestnut, and Walnut to modern grays, Pickled White, and dramatic Ebony. Browse every swatch on our Lifeline Ultra-2 page.

Sashco Log Jam: Premium Chinking, Textured Like Mortar

The other premium chinking on our trucks is Sashco Log Jam. Like Perma-Chink, it's a flexible, water-based synthetic chinking with the look of traditional mortar — and it stretches and recovers through freeze-thaw cycling without cracking or pulling away.

Having two world-class chinking lines lets us match the right product to each home's joint design, style, and existing materials, and gives customers eight additional color options to work with. When we assess your home, we'll recommend which chinking fits — the details are on our Log Jam page and our chinking service page.

Sashco Transformation: Bringing Weathered Logs Back to Life

For homeowners who love a rich, oil-based finish, we apply Sashco Transformation Log & Timber stain. Its motto is literally “restore what nature destroyed” — it's a flexible, semi-transparent, exterior oil-based stain built for exactly the situation we see most: gray, weathered logs that need to come back to life after media blasting.

Transformation flows into the wood and showcases the grain without lap lines, and its 14-color range (including three Flex Tint exclusives) covers everything from golden honey tones to deep walnut. See the full palette on our Transformation page, and how we prep for it on our media blasting page.

Sashco Conceal: The Caulk That Disappears

Not every gap calls for wide chink lines. For checks, cracks, corners, windows, and doors, we use Sashco Conceal, a textured caulk designed to vanish into the woodgrain instead of announcing itself as a shiny smooth bead.

Conceal is elastic enough to move with the logs, works interior and exterior, stays stable through freeze-thaw, and comes in seven stain-matched colors — so a sealed check on a Breckenridge or Winter Park home blends into the finish instead of standing out. Details and swatches are on our Conceal page.

The System Matters More Than Any Single Product

Here's the part product labels won't tell you: none of these products perform without the right preparation and the right combination. Stain over failing finish peels. Chinking over dirty or oily wood lets go. A beautiful stain without a proper topcoat weathers early.

A typical full restoration sequences them: media blasting back to clean wood, then Ultra-2 or Transformation stain, then Perma-Chink or Log Jam chinking, with Conceal sealing checks and joints. That system approach — matched products, applied in the right order, on properly prepped wood — is what makes a Colorado log home finish last. You can see the results in our before-and-after portfolio.

Questions About Products for Your Home?

Every home's condition, elevation, and style point to a different combination. If you're weighing stain colors, comparing chinking options, or wondering what your logs need after years of weathering, we're happy to talk it through — we serve mountain communities across Summit, Park, Grand, and surrounding counties. Start with our products page, get a quick number from our cost calculator, or contact us directly.