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08369 Seam Sealer, 310 mL Flex-Pack, Paste, White, 1.68, 5 to 10 min Application, 24 hr

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Original price $58.66
Original price $58.66 - Original price $58.66
Original price $58.66
Current price $54.00
$54.00 - $54.00
Current price $54.00
Save $4.66 (7% off)

3Mâ„¢ MSP seam sealer is a high quality, heavy-bodied, general purpose, moisture-curing seam sealer for interior and exterior body joints. Our sealer adheres well to properly prepared primer, paint, and bare metal surfaces.

Why Pros Choose 3M Products MMM

  • Seam sealer works for both interior and exterior auto body joints
  • One-part formula is ready to use without any mixing
  • Strong adhesion bonds to many surfaces
  • Tack free in 30 minutes and is immediately paintable
  • Recommended for use with 3Mâ„¢ flexible package applicator gun, 08398 (sold separately)
  • A single component moisture-curing MSP seam sealer
  • Designed for interior and exterior body joints
  • Adheres well to primed surfaces except acrylic lacquer
  • Paintable immediately
  • Immediately paintable up to 72 hr

How to Use

For use on bare metal, door hem flanges, boor jambs, door skins, exterior seams and joints, floor pans, galvanized, general purpose, interior seams and joints, joint filling, rear body panels and rocker panels

Compatibility

Compatible substrates: Bare Metal, Primed Surface.

Compatible paint systems: Lacquer, Acrylic.

Specifications

Technical specifications for 3Mâ„¢ 08369 Seam Sealer, 310 mL Flex-Pack, Paste, White, 1.68, 5 to 10 min Application, 24 hr Curing
Part No. 8369
Product Line MMM
MFR Model 08369
Standard/Approvals OSHA 29 CFR 1910.1200
Application For use on bare metal, door hem flanges, boor jambs, door skins, exterior seams and joints, floor pans, galvanized, general purpose, interior seams and joints, joint filling, rear body panels and rocker panels
Manufacturer 3M Products
Alternate Part Number-1 60455050132
UPC 051135083697
Brand 3Mâ„¢
Maximum Sale Quantity 6
Maximum Sale Day 7
Applicable Materials Bare Metal
Composition 15 to 40% Limestone, 10 to 30% Calcium Carbonate, 10 to 30% Silyl Terminated Polyether NJ Trade Secret Registry No.04499600-6009P, 7 to 13% Plasticizer - NJ Trade Secret Registry No. 04499600-5988P, 1 to 5% Diisodecyl Phthalate, 1 to 5% Hydrotreated Heavy Naphtha (Petroleum), 0.5 to 5% Stearic Acid, < 1% 1,2-Ethanediamine, N1-[3-(trimethoxysilyl)propyl]-, < 1% 1-Methyl-2-Pyrrolidinone, < 1% Dibutyltin bis(acetylacetonate), < 0.5% Quartz Silica
Application Time 5 to 10 min
Paintable (Y/N) Yes
Specific Gravity 1.68
Odor/Scent Solvent
Color White
Container Size (mL) 310
Flash Point 144 deg F
Container Type Flex-Pack
Form Paste
Temperature Rating (deg F) -30 to 200
Curing Time 24 hr

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 Bare Metal, Primed Surface. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.

What is the cure or dry time for 3M Products MMM?

The curing time for 3M Products MMM is 24 hr. Drying and curing times may vary with temperature, humidity, and film thickness — always consult the Technical Data Sheet (TDS) for exact cycle conditions.

What size does 3M Products MMM come in?

This listing ships 3M Products MMM in a 310 container. Check the autofxmart catalog for other sizes and bulk pricing.

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 8369. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.

Documents & Safety

DANGER: This seam sealer contains hazardous chemicals that can cause serious health effects including cancer, reproductive harm, and damage to organs, eyes, and respiratory system. Required safety equipment: chemical-resistant gloves, protective clothing, and respirator. Avoid skin and eye contact, inhalation, and ingestion. Use only in well-ventilated areas. Can cause severe burns and permanent eye damage. Always refer to the full SDS before use.

Why Buy from autofxmart

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