A USA Pan 9" leakproof springform pan. Aluminized steel with Americoat silicone nonstick. Baking surface 9" x 9" x 2.625"; outer 9.25" x 9.25" x 3.5". Ridged bottom; steel-wire rims. Removable sides latch to an oversized base. If the o-ring loses shape, freeze it overnight. Oven-safe to 450°F. Silicone, nylon, or wooden utensils only. Limited lifetime warranty. USA Pan's FAQ lists Americoat as a silicone coating made without PTFE, PFOA, PFOS, PFAS, and BPA.
The springform we sell people who are tired of batter leaking onto the oven floor.