Hot melt Adhesives

Hot melt

Hot melt adhesives are very populair in gluing techniques, because they are very well modificable, so they will glue almost every substrate. However hot melts demand special application equipment, with thermal adjustment possibility for heads, guns and hoses.

Hot melt units for the application of hot melt

Pressure sensitive hot melt in silicone package

Advantages

Very fast tack, that means hardly any drying time
Waterproof
Gluing possible of non poreuze materials
Optimal adjustable glue application
Very compact machinery, because only very short pressure sections are needed.
High machine speeds because of short pressure sections.
Reduction of the adhesives consumption.
Unlimited stock life (for most types of hot melt).

Hot melt in granulate shape

Hot melt application head

Common terms

Hot tack
This is the tack of the hot melt in molten/fluid condition.

Open time
This is the effective time in which the hot melt should be used to bond materials together.
Short open time: high machine speeds.
Medium open time: average machine speeds, applications by hand.
Long open time: slow machine speeds, applications by hand.

Machine open time
This is the time between application of the hot melt and putting the to be bonded materials by the machine together.
Regarding the open time; Characteristics of hot melt is always based on to a constant machine speed.

Production of hot melt on a Sandvik machine (Photo Sandvik)

Production of white hot melt on a Sandvik machine(Photo Sandvik)

Hot melt program

Hot melt	INTADMELT ®
PUR hot melt	INTADPUR ®
Pressure Sensitive Hot melt	INTADPRESS ®
Hot melt sticks	INTADSTICK ®
Hot melt hand guns	INTADGUN ®
Hot melt in rolls and sheets	INTADSHEET ®
Waxes	INTADWAX ®