Friday, June 27, 2025

Are Lead-Free and Biodegradable Always Environment Friendly?

Humanity used many materials for centuries without knowing their hazard on them. Lead is one of them. As a result, use of lead is banned on many places except for the car batteries (strange?). I am electronics engineer and I solder using my leaded solder. I watch quite a lot of electronics repair videos. Almost always the repairer uses leaded solder while fixing the electronics because it has a lower melting point (183°C) than lead free solder (217°C), causes fewer joint quality problems and poses a lower risk of adverse thermal effects on soldered components. You should have seen the failed products because their ports have failed due to broken solder joints. Sending such failed products for repair would cost a lot of money so they are discarded to landfill. If a gram of lead used extends a product’s life for one more year, I would call it a green product. Manufacturing electronic products is not green by any means. Their short life poses more environmental problems than their lack of a gram of lead. On the other hand, millions of lead acid batteries manufactured each year and not all are properly disposed. The authorities should make intelligent decisions by looking at the big picture and not play a game of Taboo and ban things because they contain a Taboo word.

One additional thing on the electronics standard’s developers. Please stop developing standards like HDMI and UCB-C ports. These ports have too tiny connectors that fail in no time and turn the device useless. Repairing such tiny tracks is not easy and most of the time the pcb is damaged during repair which bricks the device.

Now let’s come to the biodegradable shoe soles. I had so many shoes send to landfill because of their failed soles. The upper sections of those shoes were genuine leather that were still in good shape. My suggestion to the real green manufacturers not to combine longer lasting parts with the short-lived ones. For leather shoes use longer lasting soles!

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