this post was submitted on 24 Jun 2025
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Most use aluminium nowadays afaik.
I'm not certain, can't find any reliable info on this.
Shops don't seem to specify the reflective material. In addition, aluminium is commonly used to describe the frame, and silver as a color for the frame or other parts, making it hard to get any info on the sales side.
On the production-tech side, I see some pages talk only about silver, others mention both silver and aluminium. Silver commonly has a description of the chemical process at times (silver nitrate silvering), haven't seen one for aluminium yet.
Price wise, metal should be fully opaque around 10nm. Assuming a generous 100nm thickness, that makes 0.1€/m² worth of silver. I doubt material cost is a factor.
Performance wise, silver seems better than aluminium in its reflectance. Honestly I don't get why anyone would be making aluminium mirrors.
Does anyone have more info on this?
This is the most thorough answer I managed to find so far. They do mention silver being more valuable, but seems like the application process might be more expensive also.
The only source I could find on commonality is this paywalled market report claiming "The market is segmented by application (home and commercial) and type (aluminized and silvered glass mirrors), with silvered glass mirrors currently holding a larger market share due to their superior reflectivity and clarity." Not sure whether greater market share necessarily means more individual mirrors produced though. But sounds like silver still reigns supreme despite higher costs, though not sure by how much.