CONVERSION FROM SOLVENT-BASED TO WATER-BASED SEALANT
Water-based sealants are the golden standard in canmaking
Water-based sealing compounds are suitable for all types of cans for food, beer and beverages as well as general-line packaging. They offer a wide range of benefits for the canmaker and society.
Benefits of water-based sealants
ENVIRONMENTAL BENEFITS Elimination of VOCs emissions, as the dispersion media is water.
HEALTH AND SAFETY Handling of water-based solvent-free materials.
TECHNICAL BENEFITS No recirculation and heating of sealing compound. Superior stability of water-based sealants. Reduced sealant build-up on lining equipment. Softer dry sealant film with reduced mechanical incidences in the seam. More homogeneous applied compound film. Best flavour characteristics, water-based sealants show better results on flavour testing. Superior film behavior in steam flow processes.
ECONOMICAL BENEFITS Less liquid material usage. Higher material yield due to reduced film SG. No restricions and no special requirements for transport.
Investment in conversion from solvent-based to water-based technology is practically limited to an installation of a post heater (drying oven for ends) and change of metal parts in contact with sealant from colour metal to stainless steel.