3M
3M 8219 2‑Part Repair Adhesive, 200 mL Duo Syringe Cartridge, Dark Green
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Overview
Built for the job.
3M™ SMC/Fiberglass repair adhesives are two-part urethanes or two-part epoxies used to bond backup strips to SMC (sheet molded compound), FRP (traditional fiberglass) and primed metal. Our adhesives provide a full range of hardness, flexibility and worktimes for jobs such as reinforcing the backside of plastic…
3M 08219 is a two-part, viscous liquid repair adhesive supplied in a 200 mL dual-syringe cartridge (mix ratio 1:1-1.2). It is designed for structural bonding and filler work on automotive panels, providing high strength repairs on substrates such as aluminum, steel, bare metal, fiberglass, FRP, OEM polyester, and SMC.
The formulation reaches full cure in 3 hours with a sandable window that extends the same 3-hour period, allowing ample time for contouring. Working time is 35 minutes at an application temperature range of 40 °F to 180 °F (-40 °C to 82 °C), ensuring reliable performance across typical shop environments. The adhesive's rapid cure and extended sandable time support efficient panel reconstruction without sacrificing finish quality.
Due to its classification as acute toxicity, aspiration hazard, carcinogen, and flammable oxidizer, proper personal protective equipment is required: eye protection, chemical-resistant gloves, protective clothing, and a respirator in well-ventilated areas. Follow standard first-aid procedures for inhalation, skin, eye, or ingestion exposure.
Why Pros Choose 3M 2-Part
- Two-part urethane or two-part epoxy adhesives effectively bond rigid plastic
- Commonly used to bond backup strips to SMC and FRP (traditional fiberglass)
- Frequently used for backside reinforcement repair on a variety of plastic components
- Adhesive offers excellent sag resistance
- A range of work times allows for maximum efficiency on specific jobs
- A high-performance two component urethane adhesive with excellent sag resistance
- Used to bond backup strips to SMC and FRP (traditional fiberglass)
- Used for backside reinforcement repair on a variety of plastic components
How to Use
For backside reinforcement repair on a variety of plastic components
- Clean and dry the substrate (aluminum, steel, fiberglass, FRP, OEM polyester/SMC) to remove oil, rust, and loose material.
- Mix the two parts in a 1 : 1.2 ratio by weight; blend thoroughly for the specified pot life of 35 minutes at 40-180 °F (-40 °C to 82 °C).
- Apply the adhesive with a suitable brush or spatula, covering the repair area in a single coat.
- Allow the material to set for up to 3 hours before sanding; it becomes sandable at this time.
- After sanding, if additional coats are required, repeat mixing and application steps, observing the same cure schedule.
Compatibility
Compatible substrates: Fiberglass, Plastic, SMC.
Compatible paint systems: Urethane, Epoxy.
Specifications
| Part No. | 8219 |
|---|---|
| Product Line | MMA |
| MFR Model | 08219 |
| Standard/Approvals | OSHA 29 CFR 1910.1200 |
| Application | For backside reinforcement repair on a variety of plastic components |
| Manufacturer | 3M Products |
| Alternate Part Number-1 | 60455052625 |
| UPC | 051135082195 |
| Brand | 3M™ |
| Maximum Sale Quantity | 12 |
| Maximum Sale Day | 7 |
| Applicable Materials | SMC/Fiberglass, Primed Metal |
| Composition | 30 to 60% Polyether Polyol (NJTSRN 04499600-6782), 15 to 40% Polyol (NJTSRN 04499600-6783), 15 to 40% Talc, 3 to 7% Urethane Prepolymer (NJTSRN 04499600-6781), 1 to 5% Thickening Agent, 0.1 to 1% Piperazine, 0.02006 to 0.06018% Quartz Silica, < 0.1% Titanium Dioxide |
| Application Time | 35 min |
| Specific Gravity | 1 to 1.2 |
| Odor/Scent | Slight Ammonia |
| Color | Dark Green |
| Container Size (mL) | 200 |
| Setting Time | 90 min |
| Flash Point | >340 deg F |
| Container Type | Cartridge |
| Form | Viscous Liquid |
| Temperature Rating (deg F) | -40 to 180 |
| Type | 2-Part |
| Curing Time | 1 to 4 hr |
- Mix Ratio
- 1 : 1.2
- Cure Time
- 3 hours
- Sandable Time
- 3 hours
- Work Time
- 35 minutes
- Application Temperature
- 40°F - 180°F (-40°C - 82°C)
- Compatible Substrates
- Aluminum, bare metal, fiberglass, FRP, OEM, polyester, SMC, steel
About 3M
3M is a global leader in abrasives, masking, and body repair products. Trusted by OEM collision centers for high-performance prep and finishing solutions.
Frequently Asked Questions
What surfaces can 3M MMA be used on?
3M MMA is compatible with Fiberglass, Plastic, SMC. 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 MMA?
The curing time for 3M MMA is 1 to 4 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 MMA come in?
This listing ships 3M MMA in a 200 container. Check the autofxmart catalog for other sizes and bulk pricing.
How fast does autofxmart ship 3M MMA?
Most in-stock orders for 3M 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 product genuine?
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 is the manufacturer part number (MPN) for 3M MMA?
The MPN for 3M MMA is 8219. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
Documents & Safety
DANGER: This adhesive contains hazardous chemicals that can cause serious health effects including cancer, reproductive harm, and organ damage. Contains flammable components. Required PPE: safety glasses or goggles, chemical-resistant gloves, protective clothing, and respirator when ventilation is inadequate. Avoid skin contact, eye contact, and inhalation of vapors. Use only in well-ventilated areas away from 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
3M Products MMA is compatible with Fiberglass, Plastic, SMC. 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 MMA is 1 to 4 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 200 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.
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