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Pro-grade auto-body supply Β· Any quantity Β· 23,000+ SKUs in stock
23,000+ pro-grade SKUs in stock
3M Products

3M Products 8399 1-Part Flexible Package Applicator Gun, 310 mL, Pneumatic, Black

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$602.15
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Overview

Built for the job.

Versatile and valuable tool used in variety of repair applications, our 3M™ flexible package applicator gun is an essential tool for any auto body shop. This applicator is used to apply seam sealers to automotive seams and joints and is made to fit 310 mL packages. It delivers a steady stream of semi-liquid…

Why Pros Choose 3M Products 1-Part

  • Made with all metal components to withstand years of use and rugged working conditions
  • Rod driven, friction feed delivers a smooth and steady stream of automotive sealant and urethane
  • Designed to fit flexible foil packages of 310 mL or smaller
  • Fully enclosed case makes package changes quick and easy
  • This tool has a 12:1 dispersion ratio

How to Use

For applying body filler, use with 3Mβ„’ windshield urethanes, 3Mβ„’ urethane and MSP seam sealers

Compatibility

Compatible substrates: Fiberglass.

Compatible paint systems: Urethane.

Specifications

Technical specifications for 3Mβ„’ 8399 1-Part Flexible Package Applicator Gun, 310 mL, Pneumatic, Black
Part No. 8399
Product Line MMM
Application For applying body filler, use with 3Mβ„’ windshield urethanes, 3Mβ„’ urethane and MSP seam sealers
Manufacturer 3M Products
UPC 051135083994
Brand 3Mβ„’
Capacity (mL) 310
Power Source Pneumatic
Type 1-Part

About 3M Products

3M Products is a trusted manufacturer of professional auto body and refinish products used by collision repair shops and restoration specialists across North America.

Frequently Asked Questions

What surfaces can 3M Products MMM be used on?

3M Products MMM is compatible with Fiberglass. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.

How fast does autofxmart ship 3M Products MMM?

Most in-stock orders for 3M Products MMM ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup.

Is this 3M Products product genuine?

Yes. autofxmart is an authorized distributor of 3M Products products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact support@autofxmart.com and we will make it right.

What is the manufacturer part number (MPN) for 3M Products MMM?

The MPN for 3M Products MMM is 8399. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.

Why Buy from autofxmart

  • Authorized distributor β€” authentic, factory-fresh stock.
  • Fast US shipping β€” most orders ship within 1 business day.
  • 30-day returns β€” buy with confidence.
  • Pro-shop pricing β€” bulk discounts available on request.
  • Expert support β€” questions? Email us at support@autofxmart.com.
Specifications

Full data

Brand3M Products
Part number8399
SKUMMM.8399.EA
UPC051135083994

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