Material rust removal:

Scrape off loose rust and paint from the workpiece surface with a wire brush. Optional selective removal of rust, old paint, and foreign substances using power tools.

2. Apply matching primer coat

1) Apply primer by hand, brush, wearing gloves, or with a roller.

2) Apply a thin layer of primer evenly on the surface of the workpiece to be wrapped with tape.

3) Apply more primer to the holes, shoulders, gaps, and pipe threads of the workpiece.

4) For narrow threads and gaps, a brush can be used to apply the substance appropriately.

3. Apply matching putty.

1) For complex-shaped parts like valves, flanges, and pipe fittings, you can use putty to shape them to prevent bridging or voids when wrapping tape later.

2) Apply putty with a putty knife or gloves.

3) Smooth out the rough, uneven surface, and remove air from the holes.

4) Apply at least 100mm above the existing anti-corrosion layer.

4. Coated mineral oil tape

1) Use oil tape with spiral wrapping, ensuring at least a 25.4mm (1") overlap between each wrap. For extreme environmental conditions, a 55% overlap can be used for double protection.

2) If the construction space is too narrow, consider applying the tape vertically, resembling a "cigarette" wrap. Ensure there is at least a 100mm (4") overlap, and position the overlap on the top side of the pipe to achieve a "railing" protective effect.

3) When wrapping, be sure to hold the starting end tightly, ensuring it adheres closely to the workpiece surface. Avoid allowing the tape to extend too far, as this can cause wrinkles and gaps. Therefore, it is required to maintain a consistent tension throughout the wrapping process.

4) Maintain adequate tension to achieve a continuous, smooth surface. Be careful not to overstretch the tape. As you wrap, smooth out any wrinkles and bubbles that appear.

5) Ensure a minimum overlap of 100mm (4") between tape joints, with the joint positioned on the upper half of the pipe. After wrapping each roll, use your hand to flatten the overlap along the spiral wrapping direction.

6) For workpieces in a vertical direction, start wrapping from the bottom up to achieve a protective effect similar to a "gable board."

7) When flattening tape and overlap areas, apply a small amount of primer to your hands or gloves for easier handling, especially in cold weather or on cold workpieces. This method is particularly recommended when applying to steel structures.