Removable and Repositionable
Removable and repositionable adhesives are designed to provide an acceptable bond to a substrate while still removing cleanly. These adhesives generally feature a lower than average glass-transition temperature (Tg), high molecular weight and additives customized for specific substrates.
Because the ability to remove or reposition an adhesive relies on a complex array of factors, selection of a removable or repositionable adhesive is often tied directly to a specific application. For example, an adhesive that is cleanly removable on a substrate like polypropylene may leave adhesive residue when removed from a higher surface energy material like stainless steel. Only by evaluating the details of an application to include processes, substrates, environmental conditions and product use can a removable or repositionable adhesive then be selected, customized or created.