person holding gray corded hair dryer

Yes, you can use a hair dryer to heat shrink wires. Heat shrink tubing is a type of plastic tubing that shrinks when heated, providing insulation and protection for wires or electrical connections. While a heat gun is typically used for this purpose because it provides more direct and high-intensity heat, a hair dryer can be an effective alternative for smaller, less demanding tasks.

When using a hair dryer for heat shrink tubing, follow these steps:

  1. Select the Right Tubing: Ensure the heat shrink tubing is the right size for your wires. It should be slightly larger than the wire before shrinking.
  2. Slide the Tubing Over the Wire: Before making your connection, slide the tubing onto the wire.
  3. Make Your Electrical Connection: Complete your wire connection, whether it’s soldering or twisting wires together.
  4. Position the Tubing Over the Connection: Slide the tubing over the area of the wire you want to protect.
  5. Apply Heat: Turn on the hair dryer to its highest setting and apply heat evenly around the tubing. Rotate the wire to ensure all sides of the tubing are heated. The tubing will shrink and conform to the shape of the wire and connection.
  6. Check for Even Shrinkage: Ensure that the tubing has shrunk evenly around the wire and connection. There should be no loose or unshrunk areas.

Keep in mind that a hair dryer may not be suitable for all heat shrink applications, especially where a higher temperature is needed to properly seal the tubing. For professional or high-precision tasks, using a heat gun is recommended for better results.

Eric Chan

Hi! I’m Eric and I work on the knowledge base at  You can see some of my writings about technology, cellphone repair, and computer repair here.

When I’m not writing about tech I’m playing with my dog or hanging out with my girlfriend.

Shoot me a message at if you want to see a topic discussed or have a correction on something I’ve written.

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