Source: SPECIALIST PRINTING WORLDWIDE : ISSUE 3: 2016
Gabriele Heller comments on the classification of HDDA
HDDA (Hexane-1,6-diol diacrylate) is contained in many UV curing printing inks. It is used as monomer (reactive thinner) because of its high reactivity and strong diluting power, as well as its excellent adhesion to various substrates.
The classification of HDDA according to CLP regulation as provided in the REACH registration dossier is:
· H315 – Causes skin irritation
· H317 – May cause sensitization by skin contact
· H319 – Causes serious eye irritation
· H412 - Harmful to aquatic life with long lasting effects
About one year ago, the Swedish Chemicals Agency (KEMI) did a RMOA (Risk Management Option) analysis and came to the conclusion that the skin sensitising properties are of equivalent concern as carcinogenic, mutagenic or reproduction toxicity properties, which under REACH Article 57f allows it to be considered SVHC (substance of very high concern) with the intention to substitute the substance.