Application Description

Thermoplastic PO and reactive PUR hot melt adhesives from Jowat facilitate a laminated activated charcoal filter media with a high permeability of the compound. The absorption capacity and the breathability of the filter media is influenced by the lamination of the multiple layers. The necessary compound strength of the filter media is already ensured with a minimal application amount in manufacturing. Therefore, as much surface as possible remains free for air filtration to provide clean air and for high breathability.
PO as well as PUR hot melts from Jowat facilitate a fast processing of the filter media and therefore efficient manufacturing due to optimum spraying performance and high green strength, and support all further downline processing steps. Both adhesive systems are characterised by low fogging and emissions, and are odourless.
Jowat adhesives for filters meet the high heat resistance demanded in the automotive industry and facilitate the manufacture of cabin filters in original equipment quality.

When filters for passenger compartments are manufactured that are to provide clean air for the vehicle interior, a variety of materials in several layers is bonded in a series of inline steps.
The filter materials assembled this way protect the passengers from dust, pollen, rust, bacteria, and odours, and also against gaseous pollutants like benzene or ozone.
When considering the ecological fingerprint of a car, these filters are playing an important role. This  means  that  the  adhesive  used  may  not impair the performance of the filter in any way.

Product Information


Base Viscosity [mPas] /
Temperature [°C]
Temperature [°C]
Open Time [s] /
Temperature [°C] /
mm Bead
Application Download
data sheet (PDF)
Jowat-Toptherm® 238.75 PO Hot Melt Adhesive 8000 ± 1000 / 200 160 - 180 40 ± 5 / 170 / 2 Filter bonding. de en fr
Jowatherm-Reaktant® 614.18 PUR Hot Melt Adhesive 5500 ± 1500 / 120 100 - 120 75 ± 5 For bonding activated charcoal and for fleece lamination in the filter industry. de en fr
Jowatherm-Reaktant® MR 614.50 Monomer-Reduced PUR Hot Melt Adhesive 5000 ± 2000 / 120 100 - 120 75 ± 5 / 2 For bonding activated charcoal and for fleece lamination in the filter industry. de en

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.

News & Articles

Jowat charocal filter
Automotive & Transportation

Interior filters for cars consist of multi-layer materials, such as activated carbon filter media. These have to be connected in such a way that the…

Jowat adhesive Jowatherm for filter manufacturing in bag
Press releases

A new pleating adhesive from Jowat for the manufacture of building ventilation filters impresses with top performance and favourable conditions.


Jowat Manual with Tips and How To Guide for cleaning problems and helpful tips for adhesive changes

Automotive & Transportation
Professional articles

In the manufacture of air filters, user-friendly, intelligent adhesives are a crucial factor for process efficiency and make air filter systems…


Adhesive Portfolio for the Filter Industry.PDF

Further Applications

Further applications in the field of „Filter Industry”