3M
3M 8272 2‑Part Repair Adhesive, 400 mL Dual Cartridge, Dark Green Viscous Liquid
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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 08272 is a two-part, viscous liquid repair adhesive supplied in a 400 mL dual cartridge (mix ratio 1 : 1.2). It is designed for structural repairs on automotive substrates such as ABS, fiberglass, FRP, OEM plastics, polyester and primer-coated surfaces.
The formulation offers a rapid work time of 10 minutes with full cure in 60 minutes, allowing sandable finish after the same period. Its low VOC content (816 g/L) supports compliance with emission regulations while providing strong adhesion to a wide range of polymeric materials.
Due to acute toxicity, aspiration hazard, carcinogenic potential and flammability, use requires eye protection, chemical-resistant gloves, protective clothing and a respirator in a well-ventilated area. Follow the SDS for first-aid procedures and handling precautions.
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 the substrate (ABS, fiberglass, FRP, OEM plastic, polyester, primer, SMC) to remove dust, oil, and loose material.
- Mix Part A and Part B in a 1:1.2 ratio by volume; stir until a uniform viscous liquid is obtained. The mixed adhesive has a work time of 10 minutes.
- Apply the mixed adhesive with a brush or spatula in a single coat to fill the repair area, ensuring complete coverage and proper wet edge.
- Allow the material to cure for 60 minutes at the recommended application temperature before handling.
- After the 60-minute cure, sand the repaired surface as needed; the adhesive is sandable at this stage.
Compatibility
Compatible substrates: Fiberglass, Plastic, SMC.
Compatible paint systems: Urethane, Epoxy.
Specifications
| Part No. | 8272 |
|---|---|
| Product Line | MMA |
| MFR Model | 08272 |
| 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 | 60455050272 |
| UPC | 051135082720 |
| Brand | 3M™ |
| Maximum Sale Quantity | 6 |
| Maximum Sale Day | 7 |
| Applicable Materials | SMC/Fiberglass, Primed Metal |
| Composition | 30 to 60% Polyether Polyol (NJTSRN 04499600-6782), 15 to 40% Talc, 15 to 40% Polyol (NJTSRN 04499600-6783), 3 to 7% Urethane Prepolymer (NJTSRN 04499600-6781), 1 to 5% Clay, 0.1 to 1% Piperazine |
| Application Time | 10 min |
| Specific Gravity | 1 to 1.2 |
| Odor/Scent | Slight Ammonia |
| Color | Dark Green |
| Container Size (mL) | 400 |
| Setting Time | 30 min |
| Flash Point | >340 deg F |
| Container Type | Cartridge |
| Form | Viscous Liquid |
| Temperature Rating (deg F) | -40 to 180 |
| Type | 2-Part |
| Curing Time | 30 to 60 min |
- Mix Ratio
- 1 : 1.2
- Work Time
- 10 min
- Cure Time
- 60 min
- Sandable Time
- 60 min
- VOC
- 816 g/L (6.8 lbs/gal)
- Compatible Substrates
- ABS, fiberglass, FRP, OEM, plastic, polyester, primer, SMC
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 substrates can I bond with 3M 08272 Repair Adhesive?
It is compatible with ABS, fiberglass, FRP, OEM plastics, polyester, primer-coated surfaces, and SMC (sheet molding compound).
How long does the adhesive take to cure?
The full cure time is 60 minutes at the recommended application temperature.
Can I sand and paint over the repaired area?
Yes. The material becomes sandable after 60 minutes, which is also its cure time, allowing you to sand and then apply primer or topcoat.
What personal protective equipment is required when using this product?
Use eye protection, chemical-resistant gloves, protective clothing, and a respirator as recommended in the safety data sheet.
Documents & Safety
DANGER: This adhesive contains hazardous chemicals that can cause serious health effects. Required safety equipment: safety glasses, chemical-resistant gloves, protective clothing, and respirator. Key hazards include flammable vapors, potential cancer risk, respiratory irritation, and skin/eye damage. May cause reproductive harm. Use only in well-ventilated areas away from ignition sources. If exposed, flush affected areas with water and seek medical attention if symptoms develop. Always refer to the full SDS before use.Why Buy from autofxmart
- Authorized distributor — authentic, factory-fresh stock.
- Fast US shipping — orders ship within 2 business days, lower 48 only.
- 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 30 to 60 min. 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 400 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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