ASK Chemicals’ VOC reduction solutions

Lowering organic material input for less emissions.

ASK Chemicals, a leading global producer of high- performance chemicals and materials, offers customised solutions to help foundries comply with strict emission limits, particularly with respect to volatile organic compounds (VOCs). VOCs are highly volatile organic substances produced during core production and storage.

As global concern for environmental protection and sustainable practices grows, more stringent VOC limits are being enforced worldwide. For instance, Germany’s current VOC limit is 150mg C/m3, with the target value expected to drop to 50mg C/m3 in eight years. Similarly, China’s current national limitation for non-methane hydrocarbons (NMHCs*), a type of VOC, is 120mg/m3, with some provinces imposing even stricter thresholds.

To comply with these emissions limits and maintain production permits, foundries must find effective ways to reduce VOC emissions. One strategy is to use highly efficient binder technology that reduces the quantity of organic material. Foundries adopting this approach successfully reduce emissions in the core shop and additionally, lower gas pressure during pouring. Ultimately, using a high-efficiency binder helps to even minimise amine gassing, resulting in reduced core shop odours and VOCs. Another approach is to use binders with high-boiling solvents, which also results in less odour and fewer VOCs in the core shop. Alternatively, optimising process parameters, such as adjusting drying oven temperatures to a minimum, can reduce VOC emissions and save energy costs.

“At ASK Chemicals, we firmly believe that less is more. Using less, but more efficient binders, helps to reduce emissions and optimises the total costs of ownership,” says Thomas Glattes, Executive Vice President Europe. “We always take into account the specific foundry emission footprint and the task of our customers to reduce emissions. Our solutions are tailored and optimised to the unique requirements of our customers.”

ASK Chemicals’ experts consider the entire process and its costs before recommending a suitable approach to the problem. Their cold box binder portfolio includes a range of solutions to help meet each customer’s specific needs, such as Ecocure Silver, Ecocure Silver T, and the Ecocure Blue family. These systems can be combined with water-based coating technology, VOC-free release agents, and inorganic mini-riser technology to provide further leverage for meeting emission limits accurately without investing in expensive plant technology.

For further details contact ASK Chemicals on TEL: 087 057 7635 or visit