UNTERSETZER ETERNIT ZU 6590147
Label: Made in Switzerland
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1 question
for another variant: 83.0 cm 20.0 cm 3.0 cm, Weiss
I ordered three and they look great, but a sticker on them says "do not place on aluminum". What is the reason for this? Our wall cover on the balcony seems to be made of aluminum.
When fiber cement comes into contact with aluminum, a chemical reaction occurs, which causes a change in the surface of the aluminum. Aluminum, with its amphoteric character, is, in contrast to iron, one of the alkali-sensitive metals and is attacked by building materials such as mortar, concrete, etc. in the presence of moisture, for which lime is used as a base material and which exhibit a more or less strong alkaline reaction until they have completely set, in the presence of moisture. We hope we have been able to answer your question. Kind regards, your Migros specialist store team.
Probably the best answer I've ever gotten to a question on the internet. Many thanks 🙂 Unfortunately, I had already filled everything before I saw the sticker. Do you think a little tire or similar between the coaster and the aluminum would be enough to stop the corrosion?
Hello Danielowicz Thank you for your comment. If the materials do not come into direct contact, no discoloration should occur. Kind regards, your Migros specialist store team.
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