450 - Silicone
Plastic Pete chimed in. "I’m cheap and flexible! But... at 150°C, I melt into a gooey puddle. Sorry."
Metal Mike spoke first. "I can take the heat! But... I rust when wet. And I’m rigid. I might crack your glass housing." silicone 450
And that’s why engineers call Silicone 450 "The Quiet Hero of the Extreme World." Plastic Pete chimed in