3M 08400 Sprayable Seam Sealer Gun | OEM Automotive Collision Repair Applicator

3M 08400 Sprayable Seam Sealer Gun | OEM Automotive Collision Repair Applicator

Posted by Tom Dennis on Dec 16th 2025

For professional auto body technicians and collision repair shops aiming to replicate factory seam sealer finishes, having the correct applicator is critical. Whether sealing door skins, quarter panels, trunk floors, floor pans, or interior voids, the 3M 08400 Sprayable Seam Sealer Gun is the authentic OEM pneumatic applicator engineered specifically for 3M Ultrapro MSP Sprayable Seam Sealer.

This high-performance sprayable seam sealer gun allows technicians to quickly apply sprayed textures or beaded seams that precisely match OEM appearance standards on modern vehicles.


Why Collision Professionals Choose the 3M 08400 Seam Sealer Gun

✔ Genuine OEM 3M Applicator

As the official 3M part number 08400, this spray gun is designed to deliver consistent results without trial-and-error or aftermarket compromises.

✔ OEM-Accurate Seam Sealer Appearance

Produces both spray patterns and bead-style applications, allowing exact duplication of factory seam sealing found on new vehicles.

✔ Fast, Clean, and Efficient Application

Eliminates messy brushing or uneven application while saving labor time and reducing cleanup.

✔ Pneumatic Precision Control

Delivers smooth, even flow for professional-grade consistency and improved corrosion protection.

✔ Built for Daily Shop Use

Durable construction designed to withstand high-volume collision repair environments.


Ideal Applications

The 3M 08400 Sprayable Seam Sealer Gun is perfect for:

  • Door skins

  • Quarter panels

  • Trunk floors

  • Floor pans

  • Interior voids

  • Structural seams

A must-have tool for OEM-certified body shops and professional collision repair facilities.


Product Details

  • Product Name: 3M Sprayable Seam Sealer Gun

  • 3M Part Number: 08400

  • Application Type: Pneumatic spray and bead seam sealing

  • Compatibility: 3M Ultrapro MSP Sprayable Seam Sealer

  • Use: Automotive collision repair


? Professional OEM Tool at a Reduced Price

  • MSRP: $648.13

  • Your Price: $589.63

  • You Save: $58.50

This is a smart investment for shops that demand OEM-level seam sealing quality, corrosion resistance, and professional finish consistency.


Upgrade Your Seam Sealing Process Today

Equip your shop with the trusted 3M 08400 Sprayable Seam Sealer Applicator Gun and deliver factory-perfect seam sealer finishes on every repair.

? Order yours today and experience the difference OEM tools make.

https://gradeatools.com/3m-08400-sprayable-seam-sealer-gun/