Issue 7/2019 - Advanced defoamers and wetting agents optimize product performance for food packaging inks

Evonik's Coatings Additives business line presented its latest portfolio of
defoamers and wetting agents for food packaging inks at the European Coatings Show today.
PRODUCTS ON DISPLAY INCLUDE THE SILOXANE DEFOAMERS AIRASE 5355 AND AIRASE^®5655, THE ORGANIC DEFOAMER AIRASE^®®4655, AND SURFYNOL^® 355 and high molecular weight TEGO^®Wet 550 two wetting agents
.
These portfolios help formulators optimize the performance of their ink products and make them compliant with a wide range of standards
.

AIRASE^®5355 is a highly effective silicone defoamer that controls and quickly eliminates foam without damaging
water-based coatings, inks and vars.
AIRASE^®5655 has excellent compatibility and is an ideal silicone defoamer
for use in the ink mixing phase.
As an alternative to siloxane-based additives, AIRASE^®4655 is a compatible organic oil defoamer with excellent compatibility and high shear stability
.

SURFYNOL^®355 SURFACTANT IS A SUBSTRATE WETTING AGENT DESIGNED TO PROVIDE DYNAMIC AND STATIC WETTING
.
It is the first choice for varthing varnishes and can be added to aqueous systems to well wet some of the more difficult substrates
.
Of all substrate wetting agents, this surfactant has the broadest range of food contact compliance
.
TEGO^®Wet 550 wetting agent has excellent printing results, especially on absorbent substrates, and is less prone to migration
due to its high molecular weight.