Wood Glue

PVAC is the typical white wood glue. These are available in different types, from extreme water resistant (with crosslinker, D4 grade) and non-colouring where the glueline is part of the visibility.

What are D2, D3, D4 wood adhesives?

D2, D3, and D4 are classifications for different levels of water resistance in wood adhesives, based on the European standard EN 204. These classifications are widely used in Europe and other regions that follow this standard.

Here’s what each classification means:

1. D2: This classification refers to adhesives that provide a low level of water resistance. They are suitable for use in indoor applications where the adhesive is not likely to come into contact with water or moisture.
2. D3: This classification refers to adhesives that provide a medium level of water resistance. They are suitable for use in indoor applications where the adhesive may come into contact with occasional or intermittent moisture, such as kitchens or bathrooms.
3. D4: This classification refers to adhesives that provide a high level of water resistance. They are suitable for use in indoor and outdoor applications where the adhesive may come into contact with continuous or frequent moisture, such as exterior joinery or marine applications.

It is important to note that these classifications are based on laboratory tests and do not necessarily reflect real-world performance. It is always recommended to consult the manufacturer’s instructions and use proper design and construction techniques for the intended application.