brackets in spaced apart parallel orientation the spacing being such that when spring tension is released the platens are biased against the opposed label portions sufficiently to maintain even coextensive contact between the platens and the labels the platens 83f and 83r are maintained at a predetermined temperature in the range from 100 u00b0 f 200 u00b0 f by the resistance elements r 7 and r 8 the temperature of each platen being controlled in a manner analogous to that in which the surface temperature of a common domestic 34 hand iron 34 is controlled for ironing articles of clothing which are susceptible to damage at different temperatures enough force is applied to create a gap between the cylidrical ends of the levers large enough to allow the diskette 10 to be slid through the gap until the upper edge of the diskette inserted upside down comes to rest on the crown of the arcuate base in this position the platens clamp the label portions of the diskette between them heating the adhesive for the desired time until it reaches the desired temperature when the signal means indicates the desired time has elapse the diskete is removed and the label manually peeled away from it for greater efficiency if desired a twin conductive de labeler for two diskettes at a time may be constructed in a manner analogous to that shown in fig8 for constructing a twin radiation de labeler by substituting elongated platens for the platens shown in fig1 and by making such adjustments for using this twin conductive de labeler configuration as may be necesssary for commercial use the platen de labeler is automated as schematically illustrated in fig1.