Coating Tech Slot Dies

Edge Bead Defects Have you heard of the common defect in slot die coating called edge bead? The defect can occur in either ambient temperature coating or hot melt adhesive coating. Let’s define what edge bead is. When you are coating, the hope is that you can create the same coating thickness from [...]

DOWNLOAD AUDIO FILE In standard proximity coating with slot die equipment requires that a gap is maintained between the slot die lip face and the substrate.  In proximity coating, the substrate is supported by a precision backing roll and the narrow gap is set by a feeler gauge.  To [...]

DOWNLOAD AUDIO FILE Whether coating batteries or adhesive tapes, there are reasons why coating full width is not always optimal.  When an operation lends itself to coating wet and dry lanes down web across a substrate, what is required to understand what is involved? Lane coating is the process [...]

DOWNLOAD AUDIO FILE INTRODUCTION The slot die coating positioner.  That’s not even a real word!  If you type in the word positioner, the word processing program complains that you didn’t spell positioned correctly.  Well, the software developers didn’t work in the coating and converting industry.  For those of us [...]