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The Sealant Made for Log Structures

Logs are in constant dynamic motion. That’s why there’s Log Builder, the sealant made for log structures. Stretches up to 500% of the original size, while still maintaining tenacious adhesion to the wood.

Since most logs move within the first few years after building due to moisture loss and shrinkage, it is crucial to start out caulking your log home using the right product. Log Builder stretches and compresses as logs move and stays elastic, ensuring that the elements and insects stay out of your log home for years to come.

10.5oz $9.99 USD
30oz $22.99 USD
5gal $362.49

Opciones de color

Dark Brown
Esto sirve como una representación digital de nuestros colores, el color puede variar. Si desea solicitar una tarjeta de color con el producto real, comuníquese con nosotros.

Product Info

Inspiration Gallery

Features & Benefits

Moves with Your Logs More Info

Absorbs normal log movement and won’t dry hard and crack over time to keep bugs, dust, and weather where they belong – outside.

Traditional Smooth Look More Info

Not textured, so dries smooth with a slight sheen

Paintable & Stainable More Info

Paint and stain both adhere well to Log Builder. When staining, use the color closest to the finished stain look for an ideal match.

Freeze-thaw stable More Info

Stable through 5 freeze-thaw cycles. Okay to leave in your unheated garage overnight. Just thaw and use.

How much Log Builder do I need?

Use our handy Caulkulator (also for stains and clear coats!) to enter your square footage and wood porosity to find out how much you’ll need.

Using Log Sealants

How Much Do You Need?

What is high performance?

We talk a lot about high performance around here, but what the heck makes a sealant or caulk high performance?

A sealant or caulk should be flexible, elastic, and adhesive. Many sealants are flexible, adhesive, or elastic. It is the combination of all three together that leads to high performance, meaning durability and longevity you can trust.

Resources & How-Tos

Downloadable Resources


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