What is Seam Sealer?

During the auto body repair process, the application of seam sealer is often a critical step. Many automotive manufacturers apply seam sealer to their replacement parts before they're shipped to warehouses, while others leave it up to the repair shop to handle. The primary function of seam sealer is to prevent moisture, dust, and dirt from infiltrating areas where two materials meet. Whether it's plastic to metal or metal to metal, this protective coating plays a vital role in safeguarding the vehicle's structural integrity.

Where is seam sealer applied?
Seam sealer needs to be applied to specific areas of the vehicle, particularly those that are frequently exposed to the elements. Common places where seam sealer is applied include:

• Door jambs
• Door skins
• Door hem flanges
• Seams and joints
• Floor pans
• Interior seams and joints
• Rear body panels
• Rocker panels

What texture is seam sealer?
The texture of seam sealer is typically referred to as the "bead." Different bead styles are achieved by attaching various tips to the nozzle of the seam sealer applicator gun. Brushes can also be used to mimic the original equipment manufacturer (OEM) textures.

Is seam sealer necessary?
Seam sealer serves as a protective barrier against rust and other forms of damage. Even though Scottsdale enjoys a relatively dry climate, applying seam sealer ensures protection during routine car washes, seasonal rains, and travel beyond the region.

Can seam sealer be painted over?
Some manufacturers ship OEM replacement parts with seam sealer already applied, while others don't. Each seam sealer manufacturer provides guidelines on how long to wait before applying a refinishing (paint) product. Notably, not all seam sealers are painted over. A reputable collision repair facility will restore the vehicle to its pre-accident condition, meaning seam sealer is applied where it was originally located, and only painted over if it came from the factory that way.

Who applies the seam sealer?
The collision repair technician at our Scottsdale facility will handle the application of seam sealer. Collision repair involves numerous steps, and skilled technicians focus on restoring the vehicle to factory specifications. Depending on the type of seam sealer used, this might be one of the final steps before the vehicle moves on to the refinishing department for painting.

Are there different types of seam sealer?
At Airpark Collision Center, we use both sprayable and standard spreadable seam sealers. High-quality repairs go hand in hand with premium materials. That's why our Scottsdale collision repair center exclusively uses 3M brand seam sealer. By replicating the factory materials and methods, we ensure both durability and aesthetic appeal for vehicle owners.

Since 2006, Airpark Collision Center has been dedicated to providing top-notch auto body repair and exceptional customer service. If you need an estimate or are dealing with minor damage, feel free to visit us or click here for a quick estimate.