Investigation of the causes of deterioration in bathtubs
We can propose countermeasures based on an understanding of the factors that caused the alteration!
Due to localized deterioration occurring in the bathtub of a general residence, we were requested by the residents to investigate the cause and countermeasures, so we conducted a site survey. As a result of the inspection, multiple adherent substances were visually identified at the positions indicated by sticky notes on the bathtub, which were considered to be the cause of the deterioration. These adherent substances were all irregularly shaped and exhibited a brown color, measuring approximately 0.5 to 1 mm in size. We collected these brown adherent substances on-site and conducted elemental analysis using an electron probe microanalyzer (EPMA/EDS). The main constituent elements detected were iron and oxygen, which contribute to the brown color, leading us to conclude that the adherent substances were rust. Based on the analysis results, we proposed and implemented cleaning with a rust remover, successfully removing the brown adherent substances and restoring the bathtub. 【Elemental analysis results of the brown adherent substances by EPMA/EDS】 ■Detection intensity - Elements detected with strong intensity: Oxygen (O), Iron (Fe) - Elements detected with medium intensity: Carbon (C), Titanium (Ti), Calcium (Ca) - Elements detected with weak intensity: Silicon (Si), Copper (Cu), Chlorine (Cl), Zinc (Zn), etc. *For more details, please download the PDF or feel free to contact us.
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【Purpose】 ■ For residential-related companies (condominium management companies, renovation companies) *For more details, please download the PDF or feel free to contact us.
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The Analysis Center Co., Ltd. continues to provide highly neutral and fair "test reports" through its business of "chemical analysis" as a third-party chemical analysis organization, offering "safety and peace of mind" to your living environment. In the field of environmental assessment, we have contributed to various industries as an "environmental measurement certification organization," in the field of material evaluation as an "ISO/IEC 17025 accredited testing laboratory," and in the field of forensic science as a "private forensic research institute," albeit with limited capacity. We are a team of experts dedicated to solving all your chemical-related issues (troubleshooting). Please feel free to consult us when needed.