# 6.7.2 polyamide (PA) Hotmelts

> From: LOCTITE®X Digital Manual for Bonding (https://www.loctitex.com/en/manuals/bonding/6.7.2-polyamide-pa-hotmelts/)

#### 6.7.2 polyamide (PA) Hotmelts

PA Hotmelts are made from the condensation of dimeric acids and diamines. They are supplied in pellet form and are solid at room temperature. They have high thermal stability, high melting points and good chemical resistance to many compounds, including many common solvents, plasticisers and oils. Compared to other hotmelts, such as EVA and PO, PA hotmelts offer higher creep resistance under load and better flame retardancy and heat stability. Many grades are thermally stable up to 160°C (320°F).31

30) Charles W. Paul, Adhesion Science and Engineering. Elsevier Science, Amsterdam, 2002.

31) Charles R. Frihart, ‘Specific adhesion model for bonding hot-melt polyamides to vinyl,‘ International Journal of Adhesion and Adhesive (2004), Vol 24. 415-422.

_Figure 191 Properties of different hotmelts_

![Figure 191 Properties of different hotmelts](/en/manuals/bonding/assets/img/adhesive-hotmelt-bonding-properties-strength-performance.jpg)