Pergut Applications in adhesives
Use in Baypren adhesives
When used in Baypren-based adhesive sys- tems, Pergut increases the initial strength of the bonds, enhances their heat resistance and produces light-colored phase-stable ad- hesives in resin-free formulations. This is of particular interest for the DIY, shoe and fur- niture industries. Apart from this, Pergut is added when elas- tomers are joined to metals and other mate- rials under vulcanizing conditions. This pro- duces lasting bonds with outstanding resis- tance to heat and environmental influences. Because of its excellent chemical resistance and good compatibility with other polymers and resins, Pergut is used in numerous ad- hesive systems.
Example: Baypren contact adhesive with high initial strength
Where low-melting resins are used in the production of Baypren adhesives, it is possi- ble to significantly raise the initial strength through the addition of 5 – 10 parts of Pergut – calculated on the polymer. Gener- ally speaking, Pergut grades of medium so- lution viscosity (e.g. Pergut S 40 or S 90) are used. Adding Pergut to the adhesive makes it possible, in shoe production for ex- ample, to shorten the curing time between bonding the sole and trimming the edges. Another example is the bonding of large plastic sheets or panels in the furniture in- dustry, because an addition of Pergut helps to stop the sheets separating at the edges.