Siegwerk Launches CIRKIT NOVASEAL Heat Seal Lacquer

Siegwerk launched CIRKIT NOVASEAL, a new dedicated portfolio of heat-seal lacquers (HSL) within its CIRKIT coatings brand. 

The new product family delivers reliable and consistent sealing performance for fiber-based and selected flexible packaging solutions. This portfolio supports brand owners and converters in the transition to more sustainable packaging.

CIRKIT NOVASEAL heat-sealing lacquers are designed to enable consistent sealing, good hot-tack performance and robust bond strength across a wide range of packaging applications. The portfolio covers multiple product characteristics and performance profiles, offering solutions optimized for gravure and flexographic printing, as well as different sealing temperature requirements.

“CIRKIT NOVASEAL is a key milestone in strengthening our coatings offering for sustainable packaging,” said Gilles Le Moigne, Head of Circular Economy Coatings at Siegwerk. “By unifying our heat sealing expertise under one strong product brand, we make it easier for customers to navigate performance requirements while aligning with circular economy goals.”

The 5 product range includes variants with low seal initiation temperatures for efficient processing, hot tack performance for high-speed packaging lines and high bond strength at low coating weights, supporting converting processes such as flexo or gravure.

As part of Siegwerk’s CIRKIT brand, NOVASEAL solutions are developed with circularity in mind. The portfolio is tailored for paper-based packaging and selected flexible applications, enabling functional performance while supporting recyclability-driven packaging designs.