Henkel heat seal coating brings versatility and enhanced safety 

Universal Loctite Liofol HS 1181 ready-to-use coating reduces costs and the complexity of manufacturing packaging.

Pharmaceutical tablets in blister packaging
(Photo by Anna Shvets)

For packaging manufacturers, the need to use a range of different heat seal coatings to ensure optimal performance and safety can add considerable cost and complexity to production, supply chains and inventories. With the development of Loctite Liofol HS 1181, Henkel is helping brands and manufacturers take on these challenges with a universal, high-performing heat seal coating for sealing aluminium foil or polyester film to plastic substrates. 

Containing improved formulations, food safe and compliant with the highest safety standards, Loctite Liofol HS 1181 provides a universal ready-to-use solution that eliminates the need for multiple coatings. It is ideal for applications like pharmaceutical blister packaging, plastic coffee capsules, peelable dairy lidding and water bins.

Committed to safety and innovation

The new heat seal coating is designed to provide strong sealing and hot tack properties for aluminium foil and polyester film and is sealable to various plastic substrates including PS, PP, PET, PE and PVC. At low coating weights, Loctite Liofol HS 1181 provides a peel-able seal. The solution is Chlorine and Epoxy free to ensure a high level of standards compliance for food contact. This also guarantees suitability for the manufacture of food packaging materials under the applicable FDA and EC-provisions. 

“Loctite Liofol HS 1181 demonstrates our commitment to realise entirely new possibilities through innovation while ending previously unavoidable compromises,” explains Davide Coppola, Senior Business Development Manager at Henkel. “It brings unprecedented flexibility to manufacturers that can use the same heat seal solution for multiple packaging applications and thereby minimise costs and complexity. At the same time, this universal sealing product has been formulated with safer chemicals to provides consumers with safer food packaging that they can trust. Hence, it is a truly universal solution.” 

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