S – Aluminum E4043 Stick Electrode Rod 18 x 14 – 1 lb

Instructions: Clean the weld area thoroughly so it is not contaminated with iron, rust, oil, grease, etc. Thicker sections should be beveled to a 60 Vee. Align the parts to be welded by tacking the joint(s). Preheating thicker sections to 350F will flatten the weld bead and reduce the amperage needed. Use DC+ (reverse polarity), hold the electrode at a 90 angle to the work piece, maintain a short arc length and move rapidly. The weaving technique is not recommended because of the faster travel speeds required when welding aluminum. Allow the part to air cool and remove all slag using a stainless steel brush before making additional passes. When finished, allow the part to cool down to about 200F and remove flux residue with warm water and a stiff stainless steel brush. A 10% sulfuric acid and hot water solution applied with a stainless steel brush will give a clean, more polished appearance. Notes: When using an oxyacetylene torch to braze, set torch to a carbonizing flame and carbonize the part, then readjust to a neutral flame and heat the entire part until the carbon residues fade; then apply E4043.

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