The different types of bonding

Physically hardening adhesives



These are adhesives which, on application, are already present in their final chemical state. Only polymers that can be liquefied can be used.

Physically hardening adhesives provide a wide range of adhesive properties, generally good bond flexibility, and are used in a variety of applications. There are four main physically hardening adhesives: 

    Drying adhesives
    Contact adhesives
    Hot melt
    Hot melt pressure sensitive

Chemically curing adhesives



Chemically curing adhesives are reactive materials that require a chemical reaction to convert them from liquid (or thermoplastic) to solid. Once cured, these adhesives generally provide high strength, flexible to rigid bond lines that resist temperature, humidity and many chemicals.

The different types of chemically curing adhesives are:

    Polyurethane (one or two components)
    Epoxy resin (one or two components)
    Anaerobic
    Cyanoacrylate
    Silylated polymer
    Silicone
    Radiation cure adhesived

For more information on the types and techniques of adhesion, please click here