One 50' spool of glass-to-metal sealing Dumet wire.
Wire is cleaned, ready to use and furnished on a 2" plastic spool.
Dumet wire is composed of a nickel-iron core in an oxygen-free
copper sheath and it forms a vacuum-tight glass-to-metal seal
against soda-lime and lead glasses.
- Material: Dumet (Nickel-Iron, Copper)
- Diameter: 0.35mm ±.01 (0.014" ±.0004)
- Length: 50' (15m) min.
- Net Weight: 13.5g
- Finish: Borated
- Sheath Composition: Cu 99.96% min. with 0.00% Oxygen
Storage: Dumet wire should be stored away from moisture.
Cleaning: Prior to assembly / beading, Dumet wire that has been handled can be cleaned chemically in deionized water with 60% formic acid and 10% hydrogen peroxide. The copper surface must be smooth and free of scratches (if needed the surface may be re-polished using a suspension of fine alumina powder in distilled water).