Application Description

Case erecting and sealing

The powerful Jowat Toptherm® polyolefin hot melts impress with a high yield and clean processing, reducing maintenance costs and downtimes in packaging processes. Whether tray assembly, folding box sealing or wrap-arounds – the state of the art adhesive formulations with a low impact on resources keep processing costs low. The latest trends in the industry, such as shelf-ready packaging, provide significant benefits at the point of sale for retailers and consumers. Due to the attractive secondary packaging, the articles can be put directly onto the shelves. Special tray shapes with removal cut-outs provide a convenient and safe way of taking the article out of the secondary packaging. The 180° flaps on these cut-outs, however, represent a challenge for the bonding process due to the high restoring forces. To meet the requirements of this application, Jowat has developed special powerful adhesives with superior processing characteristics and high initial strength.
Jowat Toptherm® products provide the high heat resistance required for the sealing of cardboard boxes. This characteristic, however, is not only needed for hot filling. Adhesives with a high heat resistance are also essential for packaging that is exposed to high temperatures during transport. In addition, these adhesives are characterised by a good cut-off at the nozzle, excellent feed performance, and high process stability. For deep-freeze packaging, Jowat also provides special adhesives with a good flexibility at very low temperatures, excellent adhesion and high resistance to humidity and mechanical stress. This combination ensures a permanent bond.

Folding boxes

Another major concern in the packaging industry is the risk of harmful substances migrating from the packaging material into the food. Folding boxes for food packaging are manufactured more often from recycled paper, which requires an additional barrier to protect the goods against a potential migration of varnish or print ink components. The barrier function is provided by films, or by dispersion or extrusion coatings that are applied onto the interior side of the folding box. In general, sealing folding boxes used for primary packaging is a very demanding application, due to the difficulty to assess the surface properties of the material. Jowat adhesives developed for closing primary packaging made of recycled and virgin fibre paper provide excellent results on the most different barrier coatings. These adhesive are characterised by a good cohesion at unfavourable counter pressure, plus superior adhesion to surfaces with finishing, film lamination or varnish coatings. Meeting highest requirements, these adhesives also impress in applications with sensitive products due to the excellent resistance to essential oils, such as the bergamot oil in tea.

Product Information


Viscosity [mPas] /
Temperature [°C]
Setting time [s] /
Temperature [°C]
Characteristics Download
data sheet (PDF)
Jowat-Toptherm® 256.10 1100 / 160 very short Wide range of adhesion. Clean processing. Good flexibility at low temperatures. Extremely colourfast and excellent oxidation resistance. de en fr
Jowat-Toptherm® 256.65 1500 / 160 very short Very high heat resistance. Very high initial strength. Wide range of adhesion. Extremely colourfast and excellent oxidation resistance. de en fr
Jowatherm® 258.50 810 ± 250 / 160 short Good adhesive cut-off. Very high heat resistance. Colourfast and good oxidation resistance. de en fr
Jowat-Toptherm® 851.10 1100 ± 250 /160 very short Wide range of adhesion. Good adhesive cut-off. Good flexibility at low temperatures. Extremely colourfast and excellent oxidation resistance. de en fr
Jowat-Toptherm® 256.91 1000 ± 200 / 140 very short Very good adhesive cut-off. Low processing temperatures possible. Extremely colourfast and excellent oxidation resistance. de en fr
Jowat-Toptherm® 851.15 1850 ± 450 / 160 very short Very high initial strength. Very high heat resistance. Wide range of adhesion. Extremely colourfast and excellent oxidation resistance. de en fr
GROW 853.20
1300 ± 500 / 140 very short Low processing temperatures possible. Very good adhesive cut-off, clean processing. Colourfast and good oxidation resistance. Bio-based content 33 % (cert. acc. ISO 16620-2:2019). de en fr
Jowat-Toptherm® 851.99 1900 ± 500 / 99 0,7 ± 0,2 / 140 Good adhesion. Excellent adhesive string cut-off. Low processing temperatures possible. Excellent resistance to oxidation and colour stability in the melt. A declaration concerning the food contact status of the product is available upon request. For processing with classic tank applicators or tankless melters. de en fr

The products listed only represent a limited selection of the available product portfolio. Product availability might differ by region. The technical data, characteristics and field of application provided in the table outline the differences between the individual adhesives of the product portfolio. Our Application Technology Department and our Sales Representatives are on hand to provide advice and support you finding the best adhesive for your particular application.

Note: The information on this page is based on test results from our laboratories as well as on experience gained in the field, and does in no way constitute any guarantee of properties. Due to the wide range of different applications, substrates, and processing methods beyond our control, no liability may be derived from these indications nor from the information provided by our free technical advisory service. Customer trials under everyday conditions, testing for suitability at normal processing conditions, and appropriate fit-for-purpose testing are absolutely necessary. For the specifications as well as further information, please refer to the latest technical data sheets.

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Further Applications

Further applications in the field of „Food and Consumer Goods Industry”