ECHA Launches Consultation on IPBC under the BPR

On September 6, 2024, the European Chemicals Agency (ECHA) launched a consultation for IPBC (3-iodo-2-propynylbutylcarbamate) under Article 10(1)(e) of the Biocidal Products Regulation (Regulation (EU) No 528/2012). The consultation focuses on concerns related to IPBC’s critical effects.  

Importance of IPBC in Wood Preservation 

This biocidal substance is widely used in the EU for wood preservation, protecting against fungal degradation that can affect the appearance and structural integrity of wood. Its uses range from the temporary protection of freshly-sawn timber to the preservation of outdoor structures such as fences and furniture.  

Endocrine Disruption Concerns and the Search for Alternatives 

Due to concerns about the potential of IPBC for endocrine disruption, alternative substances are being assessed. However, although several approved substances have been identified as potential substitutes, the analysis concluded that none are viable replacements for IPBC in its various applications, primarily due to concerns about efficacy, risk, and availability. 

Use of IPBC in the EU 

IPBC is registered under the REACH Regulation, with annual production or import volumes between 10 and 100 tonnes in the European Economic Area (EEA). It has biocidal approvals for several applications, including product preservation, wood preservation, and working/cutting fluids. It is also under review for additional uses in the preservation of films, fibres, and construction materials. Industrially, IPBC is used in formulation of mixtures and manufacturing processes. 

Role in Wood Preservation 

As a biocidal agent, IPBC is used in wood preservatives to combat fungal degradation and enhance the appearance and structural integrity of wood. It is utilized throughout the wood lifecycle, often in combination with other fungicides to broaden effectiveness and reduce resistance. Approximately 713 PT8 biocidal products contain IPBC,280 of which use it as the sole active ingredient. 

Health and Environmental Concerns 

IPBC has been classified as hazardous in the European Union's harmonized classification and labeling (ATP06) has identified. It poses serious health risks, being toxic when inhaled and harmful if ingested. Prolonged exposure can damage organs, and it is highly toxic to aquatic life, with long-lasting effects. Additionally, it can cause severe eye injuries and may trigger allergic skin reactions. 

Consultation Deadline 

The consultation for IPBC will end on November 6, 2024.