3M Products
3M Products 08308 Heavy Bodied Sealer, 7 fl-oz Cartridge, Paste, Black, 1.16, 6 min Application, 1 h
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Overview
Built for the job.
3M™ Heavy-Bodied Seam Sealer is a two-part epoxy seam sealer for all general purpose automotive sealing. It cures quickly to a tough, strong bead for lasting seam sealing protection and is used on door skins, floor pans, trunk floors, roof seams, and many other applications. Our self-mixing system ensures a proper mix…
Why Pros Choose 3M Products Heavy Bodied
- High-performance two-part epoxy seals vertical and horizontal seams to match OEM seals
- Metered mixing with dual syringe cartridge eliminates the difficulty and mess of manual mixing
- Non-flowing, heavy-bodied formula allows easy tooling for matching OEM seam sealer appearances
- Quick cure time and non-sag property aids during vertical applications
- Heavy-bodied, non-sagging, non-flowing, and easy tooling formulation for matching OEM seam sealer appearances
Compatibility
Compatible paint systems: Epoxy.
Specifications
| Part No. | 8308 |
|---|---|
| Product Line | MMA |
| MFR Model | 8308 |
| Standard/Approvals | OSHA 29 CFR 1910.1200 |
| Manufacturer | 3M Products |
| Alternate Part Number-1 | 60980034908 |
| UPC | 051131168084 |
| Brand | 3M™ |
| Maximum Sale Quantity | 18 |
| Maximum Sale Day | 7 |
| Composition | 40 to 80% Epoxy Resin, 10 to 30% Epoxy Resin, 3 to 7% Dimethyl Siloxane, Reaction Product with Silica, 0.5 to 1.5% Carbon Black |
| Application Time | 6 min |
| Specific Gravity | 1.16 |
| Odor/Scent | Epoxy |
| Color | Black |
| Flash Point | 239 deg F |
| Container Size (oz) | 7 |
| Container Type | Cartridge |
| Form | Paste |
| Temperature Rating (deg F) | -20 to 180 |
| Type | Heavy Bodied |
| Curing Time | 1 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 is the cure or dry time for 3M Products MMA?
The curing time for 3M Products MMA is 1 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 MMA come in?
This listing ships 3M Products MMA in a 7 container. Check the autofxmart catalog for other sizes and bulk pricing.
How fast does autofxmart ship 3M Products MMA?
Most in-stock orders for 3M Products MMA 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 MMA?
The MPN for 3M Products MMA is 8308. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
Documents & Safety
- Safety Data Sheet (SDS)
- 3m_08307_catalog.pdf
- 3m_08308_specification_sheet.pdf
- 3M_05113108307_Catalog.pdf
DANGER: This sealer contains hazardous chemicals that may cause serious health effects including cancer, reproductive harm, and organ damage. Can cause severe eye and skin irritation. Required PPE: safety glasses, chemical-resistant gloves, protective clothing, and respiratory protection in poorly ventilated areas. Avoid skin and eye contact. Use only with adequate ventilation. Keep away from heat and ignition sources. 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
The curing time for 3M Products MMA is 1 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 MMA in a 7 container. Check the autofxmart catalog for other sizes and bulk pricing.
Most in-stock orders for 3M Products MMA 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.
The MPN for 3M Products MMA is 8308. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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