Silverstone (plastic)

{{Short description|Type of non-stick plastic coating}}

{{Notability|date=December 2012}}

{{primary sources|date=June 2008}}

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.{{cite news |last1=Blake|first1=Harriet|title=Scouring the Shelves For Nonstick Pans

|url=https://www.washingtonpost.com/archive/lifestyle/1980/10/05/scouring-the-shelves-for-nonstick-pans/a3f93523-672d-4dc5-9c06-35f3bb863874/ |accessdate=2 February 2020 |newspaper=Washington Post |date=5 October 1980}}

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."{{cite news |last1=Blake|first1=Harriet|title=How They Get Teflon to Stick to Pans|url=https://gizmodo.com/how-they-get-teflon-to-stick-to-pans-1651191916 |accessdate=2 February 2020 |publisher=Gizmodo |date=10 October 2014}} Gizmodo reported in 2014 that one or two more additional layers were applied after the initial layer.