SQUID3 Space™ SiO₂ Coated Silver AlphaFEP is a high-performance flexible film radiator technology capable of withstanding atomic oxygen (AO) erosion in VLEO and LEO. An optically clear Silicon Dioxide (SiO₂) layer is coated on the top surface to protect the underlying FEP from reacting with AO.
Also known as Silver Teflon® or Ag/FEP, SQUID3's SiO₂ Coated Silver AlphaFEP tape is commonly implemented as a Flexible Optical Solar Reflector (FOSR) on the "ram-facing" side of the spacecraft. Deposition thickness of the AO protective layer is 65-130 nm.
From LEO small satellites to mega constellations, Silver AlphaFEP is optimized for bonding on wide-profiled structural panels. On-orbit degradation is well-characterized by NASA, ESA, and JAXA in flight literature. Silver AlphaFEP incorporates FEP film exclusively extruded from Teflon® FEP 100 resin.
Applications for SQUID3's SiO₂ Coated Silver AlphaFEP tapes
- Spacecraft Thermal Control
- Second Surface Mirrors
- VLEO missions
- Ram-side Radiators
Materials Quality and Traceability
SQUID3 Space™ Silver AlphaFEP Tape is manufactured under a certified ISO9001:2015 Quality Management System facility. Complete material and manufacturing lot records, which include archive samples of finished product, are maintained by SQUID3. All products are shipped with a Certificate of Analysis.
Disclaimer
Teflon® is a Registered Trademark of The Chemours Company FC, LLC
SiO₂ Coated Silver AlphaFEP Tape
| Solar Absorptance | <14% |
| IR Emittance | 75-85% |
| Thickness | 5 mil, 10 mil |
| Width | 2", 4", custom up to 21" |
| Length | 100 ft ± 5 ft |
| Adhesive Type | 3M 966, 3M 9703 (Electrically Conductive) |
|
ASTM E-595 Compliance |
TML <1.0% and CVCM <0.1% (Low Outgassing) |
| Perforations | 0.03-0.06" diameter holes on 0.5" centers |