Is PEEK flammable?
PEEK has a V-0 flammability rating. That means it is highly flame-resistant. It can handle continuous exposure to temperatures even if it goes up to 480°F (250°C) without losing its physical structure. Even when it comes to flame, it produces very little smoke and toxic gas. Its melting point is 343 °C. For this reason, you can use this plastic in applications where fire safety is a concern.