Polyurethane (PUR) adhesives
Polyurethane (PUR) adhesives can be classified either as thermoplastic or
thermosetting polymers depending on how the adhesives are formulated (crosslinked).
The polymer is typically formed through the reaction of a diisocyanate and
a glycol.
PUR adhesives are produced in many grades such as one-component, two-component,
dispersion and solvent-based, for use in different application areas.
PUR adhesives have good adhesion to wood, metal and plastics and find therefore
end use in many industrial applications.
Dynea are manufacturing many different types of PUR adhesives in Asia and Europe for use in the wood and shoe industries in addition to other miscellanous industries.
PUR adhesives are cold-setting adhesives with high cure rate.
The one-component type (Dynopur) that is used in the wood industry cures very
fast and gives a glue line with high strength. It is approved by official
testing bodies to be used in load-bearing timber structures. For optimum
use this Dynopur adhesive must be used together with a suitable glue spreader
unit.
Dynea’s PUR adhesives can in many cases be custom-tailored for each individual customer to meet specific requirements and performance criteria. Dynea’s PUR adhesives are capable of meeting the various performance criteria required by different standards such as JAS and EN.