Mostly used in the commercial sector, raised floors take a special position in the flooring industry due to the specific requirements for the product. Access floors can sustain extreme loads, frequently have to meet demands to resist high temperatures or fulfil anti-static requirements and provide space for special installations.
Raised floors create a flexible and permanently accessible void which is hidden under the flooring and offers space for special installations, for instance communications cables and electrical wiring or water pipes. Therefore, access floors are widely used in specialised areas where easy access to mechanical and electrical services is a requirement, such as at trade fairs or in computer rooms. Access floor panels are characterised by high load carrying capabilities and frequently provide additional functions: The tiles are usually made from wood and laminated with a functional layer. In general, the substrate is laminated on the top and the underside with a special foil, e.g. of aluminium, using powerful hot melt adhesives based on PUR which are applied by rollers. These foils provide additional functions and may be for instance anti-static or heat-absorbent. In the following step, the tiles are assembled and receive a surrounding edgeband which is usually made from aluminium. Panels which are not turned over during use are coated with a protective layer on the underside.
The adhesives used in the manufacture of access floors also have to fulfil certain requirements. They have to be characterised by optimum adhesion to rigid materials, high initial strength, high heat resistance, very short open times, and permanent durability. Special PUR hot melt adhesives for flat lamination meet these demands and ensure a permanent bond.
Viscosity [mPas] /
Open assembly time [s] /
Temperature [°C] /
Density [g/cm³] /
data sheet (PDF)
|Jowatherm® 280.50/51||EVA hot melt adhesive||85000 ± 13000 / 200||180 - 200||12 ± 2 / 190 / 200||1,14 ± 0,02 / 20||de en fr|
|Jowatherm® 288.60/61/62/63||EVA hot melt adhesive||90750 ± 19500 / 200||180 - 200||13 ± 3 / 190 / 200||1,33 ± 0,04 / 20||de en fr|
|Jowatherm® 284.70/71/72/73||EVA hot melt adhesive||75000 ± 10000 / 200||190 - 210||11 ± 2 / 190 / 200||1,52 ± 0,03 / 20||de en fr|
|Jowatherm-Reaktant® 607.40/41/45||PUR hot melt adhesive||77500 ± 22500 / 140||130 - 150||8 ± 2 / 140||1,35 ± 0,05 / 23||de en fr|
|Jowatherm-Reaktant® 608.00/01||PUR hot melt adhesive||90000 ± 20000 / 120; 42500 ± 7500 / 140||110 - 140||8 ± 2 / 140||1,1 ± 0,1 / 23||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.