Cold seal adhesives are water based natural rubber latex compounds primarily used to seal heat sensitive items such as chocolate bars.
The adhesive is normally applied wet to the substrate by a revolving gravure cylinder, immediately dried in an extended oven before it is reeled up at the end of the press.
The adhesive is usually applied to polypropylene film in a ‘window’ pattern that will allow the wrapper to be sealed adhesive to adhesive on the packaging line, without any heat being applied by the sealing jaws.
|FP 2035||Corona treated LDPE film||Low tack cold seal with clean non- stringy bonds||53%||Protection of steel components during transit|
|FP 2154||Wide range of papers and blister pack board without the need of release lacquer||Strong bonds with little stringing when sealed with finger pressure||57%||Heavy duty paper envelopes which can be sealed under low pressure|
|FP 2162||Laminates where cold seal is applied to corona treated OPP where the release mechanism is homopolymer untreated OPP film||Medium tack cold seal with low stringing of seals||54%||Two ply high gloss laminates for chocolate snacks|
|FP 2200||Single ply untreated OPP films where cold seal release lacquer present||Provides strong bonds at low coating weights (3gsm)||55%||Single ply chocolate snacks|