Extreme Challenger|Fluoro rubber strap

Compatible with Apple Watch Series 1 – 9, Apple Watch SE, and Apple Watch Ultra 1 and 2.

Made of Type 23-11 Fluorine Rubber

• Corrosion Resistance: When submerged in 98% nitric acid at room temperature for 27 days, the volume expands only by 13% to 15%.
• High-Temperature Resistance: Type 23-11 fluororubber can endure long-term use at temperatures up to 392°F (200°C) and withstand short-term exposure up to 482°F (250°C).
• Aging Resistance: Shows no significant cracks after 45 days in an atmosphere containing 0.01% ozone.
• Vacuum Performance: Features an extremely low degassing rate of only 37×10^-6 torr per second.
• Mechanical Properties: Typically offers a tensile strength ranging from 10 to 20 MPa, with an elongation at break between 150% and 350%.
• Insulation Performance: Fluororubber excels as an electrical insulator, making it ideal for low-frequency and low-voltage applications.

To maintain the distinctive appearance of the fluororubber strap over the next few years, we recommend following these care instructions:

• This fluororubber strap is designed for fearless explorers. Therefore, it can seamlessly transition from everyday wear to underwater adventures, even wearing it in the swimming pool. Be sure to remove the strap from your Apple Watch after it gets wet, to dry the adapter parts and the strap slot.
• Remove the strap from the Apple Watch case at least once a month to clean the adapter and strap slot.

If you have any questions about the strap, please feel free to contact us at hello@wristwit.com.