What are the best wood glues for assembling teak outdoor tree boxes?

When assembling teak outdoor tree boxes, choosing the right wood glue is crucial for durability and weather resistance. Teak is a dense, oily hardwood, so standard wood glues may not adhere well. Here are the best options:

1. Polyurethane Glue (e.g., Gorilla Glue) – Expands as it cures, filling gaps and creating a strong, waterproof bond. Ideal for outdoor use.

2. Epoxy Resin – Provides an ultra-strong, waterproof bond and works well with oily woods like teak. Requires mixing but offers excellent durability.

3. Titebond III Ultimate Wood Glue – A waterproof PVA glue that’s easy to use and resists heat, cold, and moisture.

4. Marine-Grade Adhesive (e.g., 3M 5200) – Designed for harsh outdoor conditions, this adhesive remains flexible and waterproof.

For best results, clean the teak surface with acetone before gluing to remove oils. Clamp the pieces tightly until the glue fully cures. These adhesives ensure your teak tree boxes withstand the elements for years.