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Kjellberg Root Flux root protection paste
Root protection paste for TIG welding of low-alloy and stainless steels. Protects the weld from oxidation and ensures even heat distribution on the underside of the weld
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Root Flux root protection paste is an excellent choice for TIG welding of low-alloy and stainless steels. It protects against oxidation during welding and distributes heat evenly on the underside of the weld. Acting as a backing paste, it cleans the weld pool of impurities and removes oxide inclusions during welding. The easy-to-use powder is mixed with liquid and applied to the root side before welding.
- Used in TIG welding of low-alloy and stainless steels (nickel content max. 20%)
- Protects against oxidation during welding
- Also acts as a backing paste by distributing heat evenly on the underside of the weld
- Also acts chemically by cleaning impurities from the weld pool
- Does not replace root shielding gas; used when shielding gas cannot be used
- Protects the root side, but does not correspond to a root side shielded with argon
- Removes oxide inclusions and emission oxides during welding
- Replaces gas shielding (if the design makes shielding gas difficult to use on the root side), tape, and ceramic backing
- Applied to the root side in an approx. 2 mm layer before welding
- Supplied as a powder; mixed with industrial alcohol (methanol, ethanol) or distilled water in a ratio of 60% powder to 40% liquid before welding
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