Protect your investment before problems begin with Sashco Board Defense®, a professional-grade borate wood preservative formulated to help protect bare wood from wood-ingesting insects, rot, and decay fungi. Designed for log homes, timber frame homes, cabins, and other wood structures, Board Defense penetrates deep into untreated wood to create long-lasting protection before staining or sealing.
Simply mix the concentrated powder with water and apply using a pump sprayer to both interior and exterior bare wood. Once absorbed, the borate treatment helps stop wood-destroying insects by disrupting their digestive process while also preventing the growth of decay fungi that can lead to costly wood rot. Unlike glycol-based borate products, Board Defense delivers the same proven protection at a significantly lower cost.
Board Defense must be applied to clean, bare wood before any stain or clear coat is applied, allowing the preservative to fully penetrate the wood fibers for maximum effectiveness.
Features:
- Borate-based wood preservative concentrate
- Helps protect against wood-ingesting insects, termites, powderpost beetles, and carpenter ants
- Prevents wood decay caused by fungi and rot
- Deep penetrating protection for bare wood
- Easy-to-mix powder concentrate
- Apply with a standard pump sprayer
- For interior and exterior bare wood applications
- Ideal for log homes, timber frame homes, cabins, and other wood structures
- Compatible with Sashco stain systems when applied before staining
- Budget-friendly alternative to glycol-based borate treatments
How much Board Defense do I need?
* One 20 lb. / 5 gal. pail will cover 2,000 – 2,500 sq. ft., depending on wood porosity.