Solid urethane takes repeated abuse and will not “bottomout”

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Ck Worldwide Inc Tungsten Electrodes, 20 Pack (NP547) VariesBy:Default Solid urethane takes repeated abuseTIG welding electrodes usually contain small quantities of metallic oxides which can offer the following benefits: Facilitate arc starting Increase arc stability Improve current carrying capacity of the electrode Reduce the risk of weld contamination Increase electrode life. Oxides used are primarily zirconium, thorium, lanthanum or cerium. Additions are 1% 4%, improve arc initiation, especially when direct current (DC) welding is employed. Thorium