Double-sided glass printing now also in black

For a long time it was technologically impossible todecorate tempered glass from both sides in the tempering process

The reason for this is simple, the use of ordinary ceramic paint on the underside of the glass and its passage through the kiln on rollers leads to melting of the paint and contamination of the kiln transport rollers when it is heated again.

The contaminated rollers subsequently damage other glass produced.

A solution existed, but only in a limited visual effect

For a couple of years now, a special TLU product has been available , a semi-mirror translucent paint that can be reinserted into the quenching furnace after the first firing, facing downwards, without the risk of contaminating the rollers.

However,this effect is visually rather reflective and semi-transparent. It can therefore only be used where it corresponds to the architects' or designers' intentions.

But what's really new now

We are now extending this technology with MGDOR 9180, a fully black ceramic paint developed specifically for this two-step hardening process.

The workflow is as follows:

Step 1.) Printing position (side) 1 with the special TLU or the new black TX
Step 2.) Forge the glass (position 1 on top)
Step 3.) Printing position (side) 2 with standard ceramic paint
Step 4.) do a second hardening (position 2 above)

After the first firing,the special TLU and TX paints do not soften and leave no traces on the kiln rollers when reheated. This prevents contamination of the rollers and the deterioration of other products.

What this means for flat glass manufacturers

true double-sided decor during hardening
Combination of printing with an effect semi-mirror or black colour on one side (position 1) and full-colour printing with a conventional ceramic colour on the other side (position 2).
without risk of damage to the hardening furnace
no need to change the standard production workflow

The new MGDOR 9180 product expands the possibilities for architects and designers to creatively design glass elements.

Article by:

Martin Valášek

Flat glass, paints, UV adhesives

technical support, blasting systems

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