Colla vs. adesivo vs. collante

The Italian language has three common words for 'glue': 'colla', 'adesivo', and 'collante'. While they all refer to adhesive substances, they have subtle differences in usage and connotation.

Colla

'Colla' is the most general and commonly used term for glue. It typically refers to everyday household glue or craft glue.
Ho bisogno di colla per riparare il vaso rotto.
(I need glue to fix the broken vase.)
I bambini usano la colla per i loro progetti artistici.
(The children use glue for their art projects.)

Adesivo

'Adesivo' often refers to stronger adhesives or specific types of glue, such as those used in industrial or professional settings.
L'adesivo industriale è necessario per fissare le piastrelle.
(The industrial adhesive is necessary to set the tiles.)
Abbiamo usato un adesivo speciale per incollare la gomma al metallo.
(We used a special adhesive to glue the rubber to the metal.)

Collante

'Collante' is a more technical or formal term for adhesive. It's often used in professional contexts or when discussing the chemical properties of glue.
Il collante utilizzato in questo processo è resistente alle alte temperature.
(The adhesive used in this process is resistant to high temperatures.)
Lo studio ha analizzato le proprietà chimiche di vari collanti.
(The study analyzed the chemical properties of various adhesives.)

Summary

While 'colla' is the everyday term for glue, 'adesivo' tends to be used for stronger or specific adhesives, and 'collante' is more formal or technical. 'Colla' might be used for craft projects, 'adesivo' for industrial applications, and 'collante' in scientific discussions about adhesive properties.