One 100' 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.
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).
Product is available since 02/16/2016
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