How to Attach a Car Door's Edge Guards Using 3M Tape

Written by larry simmons
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How to Attach a Car Door's Edge Guards Using 3M Tape
The edge guard is the protective strip along the car door. (classic car image by Mariusz Blach from

A car door's edge guard is a long rubber strip you can place along the side of your car to protect it from damage. The protective strip absorbs the small dings and dents that can occur from car park mishaps. Using 3M tape to secure the strips helps to ensure that your car makes it through the day with the auto body untouched, avoiding the look of scratched body paint as well as the cost of small body repairs.

Skill level:

Things you need

  • Car washing detergent
  • Sponge
  • Water
  • Towel
  • Double-sided 3M mounting tape
  • Car door edge guards
  • Measuring tape
  • Anvil pruner

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  1. 1

    Clean the side of the car where you wish to attach the car door edge guards thoroughly with an auto body wash. Use a sponge to remove any dirt or debris present. Rinse the car with clean water and then pat the side dry with a towel.

  2. 2

    Tape the sticky side of the double-sided 3M mounting tape down the side of the car door, placing it onto the vehicle anywhere you plan to attach the edge guards. Start the tape an eighth of an inch from the door hinge. Use a single strip for a thin guard. Use double strips of tape running parallel to one another; closely butted with one atop the other for wide car moulding strips. Do not remove the protective backing on the front side of the tape until you're ready to mount the door edge guards.

  3. 3

    Measure the length of the area you're covering with the edge guard. Cut the edge guard to fit the measured length using an anvil pruner. Make the cut an eighth of an inch shorter than the measured length so that you can place the guards on the door an eighth of an inch from the door hinge to allow the door to open without the guard becoming an obstruction.

  4. 4

    Remove the protective covering on the front of the mounted double-sided 3M tape, exposing the second side's adhesive.

  5. 5

    Place the edge guard onto the exposed tape adhesive, beginning an eighth of an inch from the door hinge. Press the strip of guard firmly onto the door using a rag, taking care not to dent the door in the process. Follow the line of the guard with the rag until you have secured it in place. Wait three hours and then rub the guard into place again, using as much pressure as is safe to use short of denting the door. Wait three to five days for the adhesive in the tape to set completely onto the door and door guard.

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