About scrap spark plugs and PGM content

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SeRKaN PGM HuNTeR

Well-known member
Joined
Jan 20, 2023
Messages
61
Location
İzmir - Turkei
Hello Refinery Community,

I have been conducting research on PGM (Platinum Group Metals) for quite some time. However, due to the lack of continuity in my work, I am facing difficulties in finding materials. Due to the presence of catalytic catalysts on the black market in the region, I had to change my strategy and I am currently considering shifting my focus to spark plugs. However, I have encountered an issue: Not every spark plug contains PGM group metals. According to rumors, the PGM group metals contained in spark plugs are expressed with specific numbers and codes. At this point, I would like to seek information from you, esteemed forum members, to learn more about the PGM metals in spark plugs. If anyone has knowledge on this matter, could you please enlighten me on which spark plug numbers and codes indicate the presence of PGM? I am particularly interested in considering these numbers and codes when purchasing scrap spark plugs to determine the metals they contain. Thank you in advance for your assistance.

Best J
 
Not every spark plug contains PGM group metals. According to rumors, the PGM group metals contained in spark plugs are expressed with specific numbers and codes.

Some plugs will say on the ceramic what PGM's it will have, but some do not say. Looking close at the plug tips you can usually tell which ones have PGM's....if they haven't burnt away.

I probably should add for clarification...some spark plugs don't contain any PGM's at all.
 
However, I would be very happy if someone shares the codes for these spark plugs because I don't want to buy unnecessary items or be ripped off by a scrap dealer. I am sure there are people in my country who know these codes, but I think they're justified in not sharing them to prevent this product from ending up on the black market. That's why I need information from across continents
 
However, I would be very happy if someone shares the codes for these spark plugs because I don't want to buy unnecessary items or be ripped off by a scrap dealer. I am sure there are people in my country who know these codes, but I think they're justified in not sharing them to prevent this product from ending up on the black market. That's why I need information from across continents
I'd start by studying the Bosch, NGK etc parts list on spark plugs.
As far as I know the only PGM used in spark plugs was Iridium in high performance motors so they are quite rare.
 
Many older types here do contain some precious metals, but ammount is teeny tiny. Dismantling is very tedious, as it has been already said. I had some Pt alloy dot plugs in hand, but many simply do not have any. Look for small "dots" of metal in between the electrodes. This is usually some PM alloy.
 
The local car scrapyard probably has hundreds of plugs just laying on the ground. Cost?...who knows, the one we used to have here would charge for every plug, broken or not. It was the type of place that if you brought a hand full of broken glass to the cashier, they charge you for a windshield.
 
Most Ford vehicles from the 1990 era to present require double platinum spark plugs and I have owned everything from the 4 cylinder, 6 cylinder, 8 cylinder gas engines.
Nowadays there's a lot of iridium plugs on the market that meets the specifications to be used in the Ford gas engines.
 
Hello Refinery Community,

I have been conducting research on PGM (Platinum Group Metals) for quite some time. However, due to the lack of continuity in my work, I am facing difficulties in finding materials. Due to the presence of catalytic catalysts on the black market in the region, I had to change my strategy and I am currently considering shifting my focus to spark plugs. However, I have encountered an issue: Not every spark plug contains PGM group metals. According to rumors, the PGM group metals contained in spark plugs are expressed with specific numbers and codes. At this point, I would like to seek information from you, esteemed forum members, to learn more about the PGM metals in spark plugs. If anyone has knowledge on this matter, could you please enlighten me on which spark plug numbers and codes indicate the presence of PGM? I am particularly interested in considering these numbers and codes when purchasing scrap spark plugs to determine the metals they contain. Thank you in advance for your assistance.

Best J
Hello Golddigger76, All Spark plugs have a some form of Copper Electrode, It has to have a very high melting point because of the heat generated at the Spark. So this copper is alloyed with Palladium. 2 parts on the Spark Plug that have recycle valve are : copper electrode 1Gram, Pure Nickel electrode 1 Gram so I give you the task of converting this into Cash. My saturated hydrochloric acid, copper leach contains 0.045 Gram per Liter. Have Fun!
 
Hello Refinery Community,

I have been conducting research on PGM (Platinum Group Metals) for quite some time. However, due to the lack of continuity in my work, I am facing difficulties in finding materials. Due to the presence of catalytic catalysts on the black market in the region, I had to change my strategy and I am currently considering shifting my focus to spark plugs. However, I have encountered an issue: Not every spark plug contains PGM group metals. According to rumors, the PGM group metals contained in spark plugs are expressed with specific numbers and codes. At this point, I would like to seek information from you, esteemed forum members, to learn more about the PGM metals in spark plugs. If anyone has knowledge on this matter, could you please enlighten me on which spark plug numbers and codes indicate the presence of PGM? I am particularly interested in considering these numbers and codes when purchasing scrap spark plugs to determine the metals they contain. Thank you in advance for your assistance.

Best J
Hi, I guess you might still be on this spark plugs PGM hunt.

1. Most foreign autos use platinum tipped electrodes and a small patch on the ground. These will be in the form of flat disks that will stand out on the metal, which is typically nickel with a core of copper.

Iridium spark plugs are a spike of narrow metal coming off of the electrode, the ground will have a patch of platinum.

Both amounts of platinum and iridium on the ground weigh from 5 milligrams to 15 mgs. The grounds typically weigh about the same.

Some iridium spark plugs have an iridium ground, Denso is the only one I know of making these double iridium's. Denso iridium also contains 5% rhodium.



2. I regularly collect spark plugs and snip off the grounds and electrodes. I then use hydrochloric acid and 3% hydrogen peroxide to leach off the steel, nickel and copper leaving behind pure platinum or iridium.

3. Haven't ever sold any but I average 20 grams or more platinum and 10 grams or more iridium per 1000 spark plugs.

picture 1 About 100 milligrams of platinum from spark plugs, about 2 dozens electrodes and 3 dozen grounds

Picture 2 about 50 mgs of iridium from about a dozen iridium spark plugs, grounds were all platinum.
 

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Hi, I guess you might still be on this spark plugs PGM hunt.

1. Most foreign autos use platinum tipped electrodes and a small patch on the ground. These will be in the form of flat disks that will stand out on the metal, which is typically nickel with a core of copper.

Iridium spark plugs are a spike of narrow metal coming off of the electrode, the ground will have a patch of platinum.

Both amounts of platinum and iridium on the ground weigh from 5 milligrams to 15 mgs. The grounds typically weigh about the same.

Some iridium spark plugs have an iridium ground, Denso is the only one I know of making these double iridium's. Denso iridium also contains 5% rhodium.



2. I regularly collect spark plugs and snip off the grounds and electrodes. I then use hydrochloric acid and 3% hydrogen peroxide to leach off the steel, nickel and copper leaving behind pure platinum or iridium.

3. Haven't ever sold any but I average 20 grams or more platinum and 10 grams or more iridium per 1000 spark plugs.

picture 1 About 100 milligrams of platinum from spark plugs, about 2 dozens electrodes and 3 dozen grounds

Picture 2 about 50 mgs of iridium from about a dozen iridium spark plugs, grounds were all platinum.
You have posted no picture here so we can not see.
 
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