Chemical and biological investigations of double-vacuum treated windows after 7½ years in service
IRG/WP 3339
M-L Edlund, J Jermer, B Henningsson, W Hintze
Earlier investigations of double-vacuum treated windows after five years in service have shown that tributyltin oxide (TBTO) degrades to di- and monobutyltin compounds and that the resistance of the wood against decay decreases. An investigation 2.5 years later of the same windows shows that the degradation of TBTO proceeds fast. After 7.5 years in service only 15-35% of the remaining organotin compounds consisted of TBTO. A clear correlation between the percentage of TBTO in the wood and decay resistance of the wood was found.