- Jul 29, 2014
- 50,073
That may be what I have. They came with thread protectors. I know silicone has a high heat resistance though, so I assumed.Viton. 70 or 90 durometer. I like 70 for the ones I have to remove to install a can because they come off without a seal spoon. The 90s last longer but are a real PITA to get on and off.
Sorry, turning my geek switch off now.