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Formaldehyde or formaldehyde releasers, which slowly liberate formaldehyde, are used as preservatives in emulsion-based paints and adhesives. Formaldehyde is a strong allergen and has been classified as carcinogenic by the WHO.
The maximum content of free formaldehyde in coatings and plastering paste is 10 ppm (0.001% by weight). Formaldehyde releasers may only be added in quantities that do not result in an overall free formaldehyde content over 10 ppm.
N-formals (e.g. hexahydrotriazine) and O-formals (e.g. (benzyloxy)methanol) are admissible provided that the product's maximum content of free formaldehyde is 0.01% by weight (100 ppm).
Safety data sheet in accordance with Regulation (EC) No 1907/2006 as amended by Regulation (EU) No 453/2010, or manufacturer's confirmation.
In the case of powder plastering and spackle, this criterion is regarded as met.
All products bearing one of the following organic labels meet these criteria:
Alternatively, the corresponding baubook declaration may serve as evidence (www.baubook.info/oea).