Platinum vs. Iridium Spark Plugs: Which Offers Better Recycling Value?

Platinum and iridium spark plugs dominate the automotive market, but their recycling potential varies. This article compares their environmental and economic value.

Platinum Spark Plugs

• Recycling Appeal: Platinum’s high market value ($900\text{–}$1,200 per ounce) makes recovery profitable.

• Applications: Recycled platinum is reused in catalytic converters and medical devices.

Iridium Spark Plugs

• Rarity & Value: Iridium’s scarcity (3x rarer than platinum) drives its price (~$4,500 per ounce).

• Challenges: Smaller electrode size complicates extraction, requiring advanced techniques.

Which Is Better for Recycling?

• Volume: Platinum plugs are more common, offering steady recycling streams.

• Profitability: Iridium’s high value offsets extraction costs, appealing to specialized recyclers.

Takeaway
Both metals are critical to a circular economy. Partnering with recyclers who handle both types maximizes sustainability and ROI.