2. 5. 5. Limits for volatile and semi-volatile organic compounds in flexible sealants

Flexible sealants may emit various substances. In addition to monomers and oligomers, these substances include volatile and semi-volatile organic compounds (VOCs and SVOCs), as well as substances that are released during the curing process, as a result of "condensation reactions".

Definitions:

• VOC (Volatile Organic Compound): an organic compound with an initial boiling point of at least 50 °C and not more than 250 °C at a standard pressure of 101.3 kPa.

• SVOC (low volatility organic compound or “high boiler”): an organic compound with an initial boiling point of at least 250 °C and at most 400 °C.

The maximum overall VOC content (total of VOCs plus SVOCs) of sealants is 5% by weight, with SVOCs accounting for a maximum of 1% by weight. In both cases, the maximum overall content of VOCs and SVOCs that may cause sensitisation (H-phrases H317, H334, EUH208) is 0.05% by weight (500 ppm). Volatile substances produced by reactions during the curing process have to be taken into account, assuming the maximum stoichiometric quantity.

Proof:
Safety data sheet as amended by Regulation (EU) No 453/2010, and manufacturer's declaration.

Alternatively, the corresponding baubook declaration may serve as evidence (www.baubook.info/oea).

VOC and SVOC definitions added to the explanation.

Date of editorial change: March 12, 2024