Hylotox

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Original bottle from Hylotox 59

Hylotox was a brand name for a group of wood preservatives and biocides in the GDR . The brand name was registered with the German Patent and Trademark Office (DPMA) in 1957 by VEB Fettchemie Karl-Marx-Stadt under the registration number DD621800 . The entry expired in 1998. The various preparations were distinguished by following abbreviations.

Wood preservatives Active ingredients Accompanying substances / solvents application
Hylotox 59 3.5% DDT
0.5% lindane 		"Laval 300" (approx. 95% aliphatic hydrocarbons),
approx. 0.5 isobornyl acetate ,
approx. 0.25% oil of turpentine 		Preventive and combating against termites and other insects
Hylotox IP
Hylotox IP brown		 3.0% DDT
5.0% PCP 		"Laval 300" (lube oil fraction)
Lignite celberation oil (IP brown)		 Preventive and combating against insects, wood-destroying fungi (including mold rot )
Hylotox S. 4.5 parts by volume of PCP as sodium salt
in 95.5 parts by volume of water		 water Against mold rot, blue stain and mold

While DDT was banned in the western industrialized countries and the use of other chlorine-containing biocides was severely restricted, in the GDR the mixtures known as hylotox were still in use until 1990 and today represent a major problem in the renovation and restoration of both buildings and buildings Art and cultural objects.

Individual evidence

  1. ^ Database of the German Patent and Trademark Office , accessed on May 19, 2017.
  2. ↑ a b c d Andreas Schwar, Physiko - mechanical investigations of the damage mechanism in roof timbers by specific wood preservatives and wood flame retardants , dissertation Technical University Cottbus 2004, p. 25, online
  3. ↑ SPIEGEL ONLINE: How Saxony turned the descendants of the last king on hazardous waste as art. Accessed November 20, 2018 (fee required).

literature