Great Bond Strength on Hard to Bond Materials
A primary issue when choosing the appropriate adhesive for an application is its
affinity to the substrate to be bonded. Depending on your application, a
wide range of materials and textiles may be used.
Owing to their polymer structure polyurethane dispersions have excellent adhesive
properties when bonded to many natural and synthetic materials used
in various fields of application.
Figure 1 below shows, for example, the peel strength of polyurethane dispersions
on different typical sole materials used in the footwear industry.
Figure 1: Peel strength on various shoe sole materials
for PUD with 3% polyisocyanate crosslinker
As you can see, polyurethane dispersions achieve a high bond strength to many synthetic
substrates. Polyurethane dispersions are particularly effective in bonding difficult
to bond substrates such as plasticized PVC.