Chemistry:Silverstone (plastic)
SilverStone is a non-stick plastic coating made by DuPont. Released in 1976, this three-coat (primer/midcoat/topcoat) fluoropolymer system formulated with PTFE and PFA produces a more durable finish than Teflon coating.
As of 1980 Dupont required that the pans carrying the brand be a heavier weight than others on the market. After the coating was applied the cookware was subsequently "baked" in a 700-800 degree oven to affix the coating.[1]
The process for creating Silverstone cookware begins by sandblasting the products which creates an uneven surface that encourages adherence. Then a primer layer of Teflon is sprayed on and after it is baked at high heat to "a secure mechanical grip."[2] Gizmodo reported in 2014 that one or two more additional layers were applied after the initial layer.[2]
References
- ↑ Blake, Harriet (5 October 1980). "Scouring the Shelves For Nonstick Pans". Washington Post. https://www.washingtonpost.com/archive/lifestyle/1980/10/05/scouring-the-shelves-for-nonstick-pans/a3f93523-672d-4dc5-9c06-35f3bb863874/. Retrieved 2 February 2020.
- ↑ 2.0 2.1 Blake, Harriet (10 October 2014). "How They Get Teflon to Stick to Pans". Gizmodo. https://gizmodo.com/how-they-get-teflon-to-stick-to-pans-1651191916. Retrieved 2 February 2020.
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