Greene Tweed’s Fusion FKM 665 sealing material is a new generation, ultra-low-temperature and chemical-resistant elastomer, that was specifically formulated to meet and exceed the requirements of Aerospace Material Specification (AMS) 7379 and AMS-P-83461.
With a temperature range of –70° to 450°F (–57° to 232°C), Fusion 665 achieves outstanding low-temperature performance without compromising high-temperature performance.
“Prior to Greene Tweed’s Fusion 665, elastomer material composition resulted in trade-offs,” said Wally Hajduczek, Sealing Systems Product Manager for Aerospace, Defense, and Life Sciences. “Achieving optimal low-temp performance meant sacrificing high-temperature operating range, chemical compatibility, or dynamic sealing performance. Fusion 665 was developed to overcome existing limitations of comparable materials, such as NBR, FKM, or FVMQ (Fluorosilicone).”
It offers the following:
- Best-in-class high-temperature capabilities (450°F/232°C)
- Outstanding low-temperature sealing
- An extremely low compression set
- Broad chemical compatibility
- High-temperature sealing