With our extensive knowledge in glass chemistry and practical experience in glass melting, we help you optimise your glass production process and improve your glass quality.
We assist glass manufacturers in optimising colour changeovers on their melting furnaces, enhancing glass melt characteristics and developing new glass products (e.g. boron-free, lead-free glass).
Expertise in colour changes
Glass colour changes pose significant challenges and require deep expertise in both furnace operation and glass chemistry.
During a colour change, two different glasses, often incompatible, mix in your melting furnace. This can lead to defects like cords, seeds, and blisters.
Recovering high-quality production can take from a few days to several weeks.
Having performed dozens of complex colour changes, we have developed detailed procedures to optimise transition times and minimise production losses.
Projects e.g.
- Development of batch formulas for soda-lime, borosilicate, crystal, fibre glass.
- Development of batches for flint, amber, green, UVAG, royal blue, grey or purple.
- Guidance for production according to CIE and CIE-Lab colour specifications.
- Colour quality improvement through physical and chemical decolourisation.
- Lab melting studies of intermediate crystalline phases.
- On-site optimisation of colour change processes.
- Developing high cullet batches for coloured container glass and glass wool.
- Glass chemistry troubleshooting: density, viscosity, durability, brightness.
