ASSA ABLOY has reduced the consumption of chlorinated organic solvents in production thanks to investments in new cleaning technologies. ASSA ABLOY uses perchloroethylene (PER) and trichloroethylene (TRI) for surface treatment of metals. These are both identified as environmentally hazardous chemicals and ASSA ABLOY has initiated a gradual phase out of those chemicals in production.

Phasing out

The commitment to reducing the use of chlorinated organic solvents will continue with the aim to exclude them from production processes. These chemicals arel, step by step, being replaced by more environmentally adapted solutions. Alternative processes are being identified and evaluated.

ASSA ABLOY measures its use of different organic solvents. Perchloroethylene (PER) has been identified as the most environmentally hazardous chemical.

Performance

The total consumption of chlorinated organic solvents increased by 16 percent during 2017. The majority of the use of chlorinated organic solvents is related to acquisitions in recent years. The target is to reduce the consumption of chlorinated organic solvents by 85 percent between 2015 and 2020.

The Group is also using other types of organic solvents primarily as solvents for paint. The total consumption of other types of organic solvents for comparable units decreased by 19 percent to 945 tons in 2017. The target is to reduce the consumption by 50 percent between 2015 and 2020, primarily by switching to water or powder-based paint applications. Compared to 2015 the consumption has been reduced by 25 percent. 

Modern cleaning technologies for surface treatment

ASSA ABLOY uses modern cleaning technologies to streamline the process of surface treatment.
Products and their components need surface treatments to meet high standards of durability, corrosion resistance, quality and finishing.

In most cases, the surface treatment processes are highly complex and require accurate process controls. Parts are treated in sequential baths and cleaned in water tanks before each new sub process commences.

By using modern cleaning technologies, the waste water can be recirculated back into the process multiple times, thereby minimizing water consumption, saving energy and reducing costs. ASSA ABLOY has long established expertise in the surface treatment field, including processes such as passivation, anodization and plating.