3M Products
3M Products 08369 Seam Sealer, 310 mL Flex-Pack, Paste, White, 1.68, 5 to 10 min Application, 24 hr
No reviews yet
Authorized dealer
Ships today
30-day returns
Overview
Built for the job.
3M™ 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 3M™ 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
| 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 | 3M™ |
| 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
- Safety Data Sheet (SDS)
- 3m_01320_catalog.pdf
- 3m_08369_specification_sheet.pdf
- 3M_05113508369_Specification_Sheet.pdf
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.
How to apply
Steps
1Clean both surfaces to bare, dry substrate.
2Load the cartridge and fit the mixing nozzle.
3Apply an even bead (or clamp) where needed.
4Tool or smooth the joint before it skins over.
5Allow to cure fully before stressing or painting.
Specifications
Full data
Frequently asked
Good to know
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.
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.
This listing ships 3M Products MMM in a 310 container. Check the autofxmart catalog for other sizes and bulk pricing.
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.
Yes. autofxmart is an authorized distributor of 3M 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 Our Customers Say
Thanks! Your review was submitted and will appear after moderation.
No reviews yet — be the first to review this product.