Arnitel EL250 is a solution provider, offering excellent adhesion on most
polar engineering plastics (PC, PC/ABS, ABS, PBT, PET, etc.).
Arnitel EL250 exhibits adhesive strengths on polar engineering plastics of
between 8,000 and 10,000 J/m2 according to the substrate and processing
conditions chosen. At these levels cohesive fracture occurs, indicating that
the interfacial strength is as good as the internal strength of the Arnitel.
As indicated, adhesion is influenced by the processing conditions used (see
figure 1). DSM can advise in choosing the right conditions that will optimize
adhesion for Arnitel EL250 on selected substrates. Arnitel EL250 can also be
used in blends with SEBS materials to produce compounds that are still softer
but which do have acceptable adhesion to polar engineering plastics. In such
blends, Arnitel EL250 provides the basic adhesion to the substrate, provided
its proportion is high enough.