What types of glue can be dispensed automatically?

In general, any industrial glue that maintains flowability under controllable conditions can be automatically dispensed. Adhesives that start curing only once a specific parameter is met are the best candidates, such as through the introduction of air, moisture, UV light, a catalyzing compound or the removal of heat. Resins, epoxies, silicones and polyurethanes are common choices. Dispensing equipment can then be designed around the ability to restrict or introduce the condition that initiates curing. Less controllable adhesives that react randomly tend to plug up dispensing equipment and are better suited for manual application.