With which type of adhesives is casein glue incompatible?

Casein glue is primarily derived from milk proteins and is known for its use in woodworking and various crafts due to its strong bond and ease of use. It is important to understand the properties of casein glue and the chemical compatibility of different adhesive types.

Modern adhesives often include synthetic formulations such as epoxy, polyurethane, and cyanoacrylate, which are designed to bond a variety of materials under diverse conditions. These adhesives typically rely on chemical formulations that can be very different from those of natural or animal-based adhesives, leading to potential incompatibility. When casein glue is paired with modern adhesives, the differing chemical compositions can result in poor adhesion, inadequate bond strength, or even the failure of the adhesive joint.

On the other hand, natural adhesives and animal-based adhesives share more similarities with casein glue in terms of their organic origins and bonding mechanisms. Water-based adhesives are often compatible as well, since many types can work well with or complement the properties of casein glue. This highlights the unique nature of modern adhesives compared to the older, more traditional types that align more closely with casein glue's characteristics.

Thus, the incompatibility of casein glue with modern adhesives stems from their fundamental differences in formulation and bonding processes.