3M Products
3M Products Automix 08243 SMC/Fiberglass Repair Adhesive, 200 mL Cartridge, Liquid, White/Black, 1 t
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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…
Why Pros Choose 3M Products MMA
- 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
How to Use
For use to bonding small backer strips and patches to the back side of SMC and FRP repairs
Compatibility
Compatible substrates: Fiberglass, Plastic, SMC.
Compatible paint systems: Urethane, Epoxy.
Specifications
| Part No. | 8243 |
|---|---|
| Product Line | MMA |
| MFR Model | 08243 |
| Standard/Approvals | OSHA 29 CFR 1910.1200 |
| Application | For use to bonding small backer strips and patches to the back side of SMC and FRP repairs |
| Manufacturer | 3M Products |
| Trade Mark | Automix™ |
| Alternate Part Number-1 | 60455050348 |
| UPC | 051131082434 |
| Brand | 3M™ |
| Composition | 30 to 60% Methylene Phenylene Isocyanate, 30 to 60% Urethane Prepolymer, 10 to 30% 4,4-Diisocyanatodiphenylmethane Polymer, 7 to 13% Talc, 7 to 13% Aluminum Silicate, 1 to 5% Thickening Agent |
| Application Time | 50 sec |
| Specific Gravity | 1 to 1.2 |
| Odor/Scent | Slight Isocyanate |
| Color | White/Black |
| Container Size (mL) | 200 |
| Flash Point | >383 deg F |
| Container Type | Cartridge |
| Form | Liquid |
| Temperature Rating (deg F) | -20 to 180 |
| Curing Time | 1 to 4 hr/15 to 30 Min/24 hr/30 to 60 Min/5 to 10 Min |
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 MMA be used on?
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.
What is the cure or dry time for 3M Products MMA?
The curing time for 3M Products MMA is 1 to 4 hr/15 to 30 Min/24 hr/30 to 60 Min/5 to 10 Min. 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 200 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 8243. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
Documents & Safety
- Safety Data Sheet (SDS)
- 3m_08984_catalog.pdf
- 3m_08243_specification_sheet.pdf
- 3M_05113108243_Specification_Sheet.pdf
DANGER: This adhesive contains hazardous chemicals that can cause serious health effects including cancer, reproductive harm, and organ damage. May be flammable and harmful if inhaled or absorbed through skin. Required PPE: safety glasses or goggles, chemical-resistant gloves, protective clothing, and respiratory protection in poorly ventilated areas. Avoid skin and eye contact. Use only with adequate ventilation. 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.
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/15 to 30 Min/24 hr/30 to 60 Min/5 to 10 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 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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