What is the strongest structural wood glue?

There are several strong and effective structural wood glues available on the market, each with its own strengths and applications. One of the commonly recognized and highly regarded types of wood glue known for its strong bond is Polyurethane Glue. Here are some features of Polyurethane Glue:

Strength: Polyurethane glue creates a very strong bond, often stronger than the wood itself. This makes it suitable for demanding structural applications.

Versatility: It adheres well to a variety of materials, including wood, metal, plastics, and even foam. This versatility makes it a popular choice for various woodworking projects.

Expansion: Polyurethane glue expands as it cures. This property allows it to fill gaps and create a tight bond, making it suitable for projects where a precise fit might be challenging.

Water Resistance: Polyurethane glue is water-resistant and can be used for both indoor and outdoor applications. It performs well in high-moisture environments.

Drying Time: It generally has a longer drying time compared to some other wood glues. However, this can be an advantage as it provides more time for adjustments during assembly.

It's important to note that the "strongest" glue can depend on the specific requirements of your project. Other popular types of wood glues known for their strength include epoxy-based wood glues and certain high-performance PVA (polyvinyl acetate) glues. Always follow the manufacturer's recommendations and instructions for the specific glue you choose, and consider factors such as open time, cure time, and the conditions in which the project will be used.