A Galvanizing Repair Solder
400mm Long
Galvanizing repair rods are used in a variety of applications to repair galvanized steel surfaces after construction or repair work is completed to prevent an oxide from forming (rust). They are often needed after welding has occurred as the heat of welding damages the original galvanized coating.
6mm Galv Repair Bar will easily repair small defects in the surface of freshly galvanized Steel.
Or typically, residual heat from the welding process is sufficient to apply and melt the galv bar. The high Zinc content provides excellent cathodic protection and the repair blends and bonds with the original galvanizing.
The Galv Repair Bar has been designed to accomplish three important objectives:
Provide excellent cathodic and barrier protection, far superior to Zinc paints and alternative barrier coatings.
Allow easy application at low temperatures with any heat source.
Provide a cost effective repair for galvanized coating defects.
The Galv Repair Bar has a broad slushy range of (232C to 315C). When heated, the slurry can be shaped and spread easily to blend seamlessly with the existing galvanized coating. The slurry can be built to a substantial thickness, even on vertical surfaces.
How to use:
1.Pre-clean the parent metal. Use emery cloth, a wire brush, sandblasting, etc. Cleaning galvanized steel surfaces is often done with a stainless-steel wire brush. To ensure a smooth surface result, surface preparation should extend into the surrounding undamaged galvanized coating. Breaking the oxide layer by agitation is an important key to successful galvanizing repair rod application.
2.If the area to be repaired includes welds, all weld flux residue and weld spatter shall be removed by wire brush, chipping, grinding or power scaling.
3.Use a soft flame, heat gun or soldering iron to heat the parent metal repair area to at least 600F/315C. Do not heat the surface over 750F/400C or allow the surrounding galvanized coating to burn. If you use a direct flame, please keep it moving. A direct flame held on the repair area is likely to overheat the solder. Wire brush the surface during heating. Pre-flux using flux if there is an adhesion problem. NOTE: Many applications do not require flux.
4. Hold the torch tip 4 to 6 inches (10.2 to 15.2 cm) away from the parent metal. If it is necessary to apply the flame directly to the rod to get it started, pull the torch tip back even farther from the work surface and keep it moving.
5.Drag the rod over the area to be soldered, until it begins to flow. ONCE THE ROD FLOWS, STOP APPLYING THE HEAT! Deposit the desired thickness of galvanizing repair rod. A stainless-steel brush works well to spread the solder and ensure it is adhering. If additional layers are needed, continue to drag the rod over the area. Bring back the heat only to keep the surface, not the rod hot enough to push the solder around to where you want it. *Sometimes it is necessary to heat the tip of the rod with the flame to help the solder flow more easily onto the repair area. Do not heat the rod to the melting point.
6.Blend the repair into the undamaged galvanized coating. The most common oversight in repairing galvanized is failing to feather the galvanizing repair material layer into the undamaged galvanized coating. If they dont join in sufficient thickness to form a seamless barrier (skin), corrosion will occur right where they meet.
Product Info
