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1/11/2006
Kemac, new mosaic gluing techniques

New process for small sizes too. An alternative to paper or fibreglass backing

Kemac – a member of the Sacmi Group – has always been in the fast lane when it comes to product development. Now, to meet the growing demand for mosaic, it has come up with an innovative spot-gluing process for small sizes as an alternative to paper or fibreglass mesh backing.
This system offers considerable advantages. Spot-gluing makes the composition self-supporting without any danger of individual pieces coming unstuck and also increases the area of contact between each piece and the wall, thus allowing – during wall mounting – an effective cementing area of 95%.
Because the glue is not water-soluble and the spots make the composition stiffer, application is easier and there is no need for cross pieces inside the composition. The risk of damp-induced piece detachment has also been completely eliminated. This means that laying times have been cut by as much as 35% compared to traditional mesh-support systems. The new gluing system is also interesting from an economical standpoint: the obtained pieces can be boxed immediately and automatically (a process that’s difficult when using a mesh support, especially where made of fibreglass). The production cycle starts when the trays have been filled: the machine picks up the material and places it in the work zone and here the machine tool deposits the glue on a non-stick support.
The glue can be dried in a kiln, horizontal or vertical kiln depending on the required output rate. At the end of the glue solidification cycle the composition is placed directly in a pre-formed box or sent to a wrapping unit for automatic box shaping and closing. This new Kemac-developed system can produce from 4 to 12 compositions per minute.

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