Log Builder


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.

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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.

Interior & exterior wood surfaces or where a traditional smooth sealant sealant look is desired, including:

  • Log homes.
  • Log checks and cracks.
  • Wood siding butt joints.
  • As a stacking sealant on tongue & groove new construction.
  • Around wood doors and windows.
  • Where wood meets chimneys.
  • Corner boards.
  • Baseboards.
  • Crown molding.
  • And more! Adheres well to most standard building materials.
  • Surfaces previously coated with a waxy or non-drying oil coating.
  • Surfaces specifically designed to be non-stick, like Kynar coated.
  • Surfaces previously sealed with silicone – silicone and silicone residue must first be removed.

Application Instructions

PDF LogBuilder_Info

Color Chart

PDF LogBuilder_ColorCard

Safety Data Sheet

PDF Log_Builder_SDS