Raising a nut slot with superglue is not generally recommended, though it can be done in certain situations, particularly in the short term or for minor adjustments. Here’s a more detailed explanation of how it works and why it’s not the best approach:

1. Superglue’s Properties:

• Superglue (cyanoacrylate) is designed for fast bonding of materials, creating a very strong and instant bond. However, it’s not meant to be used as a filler or structural material for raising a surface like a nut slot.
• It dries very hard but can be brittle and prone to cracking over time under stress, which may not offer the lasting support needed for a nut slot.

2. Raising a Nut Slot:

• A nut slot needs to be at an appropriate height for the strings to sit properly. If a string is too low, it can buzz against the frets; if it’s too high, it will be difficult to play. To raise a nut slot, you need to add material in a controlled and precise manner, which can be done with the right materials and techniques.
• Superglue could technically raise the nut slot if used in combination with something like bone or plastic dust. This creates a makeshift filler material that might hold temporarily.

3. Procedure:

• Fill the Slot: If you want to use superglue to raise the slot, you would first clean the area thoroughly. Then, you can mix superglue with fine bone or plastic dust (or any similar material that matches the nut material). The mixture would fill the slot.
• Cure and Shape: Once applied, you would let it cure fully. After the glue has dried and hardened, you would need to carefully file or sand the raised area down to the correct height for the strings.
• Short-Term Solution: This method may work for small adjustments but could be unreliable for a long-term fix. The glue can crack or wear down over time, especially with string tension and usage.

4. Why It’s Not Ideal:

• Brittleness: Superglue is brittle once it hardens, so it can easily break down, especially with constant pressure from the strings.
• Unpredictable Results: Superglue doesn’t bond well with some materials, so it may not hold as effectively as needed. The bond might loosen or fail after repeated use.
• Not a Permanent Fix: If the nut slot needs substantial raising, superglue may not provide a stable, lasting solution. It might be a temporary workaround but not a proper fix.

5. Better Solutions:

• Nut Replacement or Adjustment: The most effective solution is to either replace the nut or adjust it correctly using a specialized tool for filing the nut slots. Nut materials like bone, plastic, or Tusq can be used to make a custom nut that fits perfectly.
• Filling with Proper Materials: If you need to fill the slot, there are better materials for the job. A mixture of dust from the same material as the nut (such as bone dust) combined with a more flexible adhesive like epoxy or hide glue will provide more stability and durability.

6. Summary:

• Raising a nut slot with superglue can be a temporary fix in a pinch, but it is not a reliable or durable solution.
• For best results, use proper materials for nut slot adjustments, such as nut fillers, or replace the nut if needed.