by CMID
“Hot-melt adhesive” is not one universal material. The term can encompass different systems and grades.
What can differ?
- base polymer or material system
- melting behaviour
- open-time and setting characteristics
- adhesion characteristics
- application requirements
A physical form such as pellets, granules or blocks does not in itself prove that two materials are equivalent.
Key takeaway:check documented identity, grade, specifications and intended application before a trial.
This article provides no melting temperatures, compatibility claims or universal grade recommendations.
Translated text from article illustrations
The text below corresponds to the original artwork. It does not confer additional formulation, use or safety approval. Read it with the scope limits in the article.
Text in illustration 1
Hot-melt adhesive: why do material form and grade matter? Hot-melt adhesive is heated until molten, applied, then hardens as it cools.
Material forms: Tackifier/Resin; EVA/PO; Polyamide/Copolyamide. Why does grade matter? It affects adhesion, melt viscosity, open time and setting time, heat resistance and cold performance, and determines compatibility and application-process aspects.
Remember: select hot-melt adhesive form and grade according to application requirements, substrate and use conditions.