3M
3M 8804 Water Based Undercoating 22.4 oz Black Can
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Hazardous material · Liquid
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Shipping restrictions apply
Ground freight only (UPS/FedEx). Cannot ship via Air, USPS, or to PO boxes. APO/FPO addresses excluded.
WARNING: Cancer & Reproductive Harm
California Pro65 Warning: Cancer and Reproductive Harm
Tap for details → P65Warnings.ca.gov
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Overview
Built for the job.
3M™ no cleanup water based undercoating delivers what you need in a vehicle undercoat - including corrosion and abrasion-resistance, high build capabilities, sound deadening qualities and fast direct to metal spray application - without the time and expense of cleanup. This water based formula sprays on consistently…
3M 08804 Water Based Undercoating is a black, water-based primer designed for corrosion protection on bare metal, OEM panels, and previously primed surfaces. It provides a durable barrier that prepares the substrate for subsequent topcoat applications in automotive body repair.
The formulation achieves full coverage in two coats, adhering well to metal and existing primers while maintaining flexibility to accommodate panel movement. Its water-based chemistry reduces VOC load compared with solvent-based alternatives, and the product's flash point of 106 °F requires standard handling precautions for flammable liquids.
Use in a well-ventilated area and wear eye protection, gloves, protective clothing, and a respirator as required by the SDS. Follow first-aid guidelines for inhalation, skin contact, eye exposure, or ingestion.
Why Pros Choose 3M Water Based
- Multi-purpose undercoating protects vehicle undercarriages and other vulnerable areas
- Water based formula helps eliminate clean up
- Formula provides high build capabilities for heavy textured sound deadening applications
- Excellent resistance to corrosion and adhesion direct to metal
- Fully paintable when dry
Application Guide
- Thoroughly clean the surface to remove grease, oil, and contaminants; ensure the substrate is bare metal, OEM finish, or primer.
- Apply the first coat of 3M 08804 Water Based Undercoating uniformly to the prepared area.
- After the first coat has dried as per manufacturer's recommended flash time, apply a second coat to achieve full coverage.
Specifications
| Part No. | 8804 |
|---|---|
| Product Line | MMM |
| MFR Model | 8804 |
| Standard/Approvals | California Pro65 Warning: Cancer and Reproductive Harm |
| Application | For surface coatings |
| Manufacturer | 3M Products |
| Alternate Part Number-1 | 60455102297 |
| UPC | 051135088043 |
| Brand | 3M™ |
| Rubberized | No |
| Color | Black |
| Container Size (oz) | 22.4 |
| Container Type | Can |
| Form | Liquid |
| Type | Water Based |
- Substrates
- bare metal, OEM, primer
- Coats
- 2
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 apply 3M 08804 Water Based Undercoating to?
The product is formulated for use on bare metal, OEM finishes, and primed surfaces.
What personal protective equipment is required when applying this undercoat?
Use eye protection, chemical-resistant gloves, protective clothing, and a respirator as specified in the SDS.
Documents & Safety
Warning: This water-based undercoating contains flammable materials with a flash point of 106°F and potentially harmful chemicals. Required PPE includes safety glasses, chemical-resistant gloves, protective clothing, and respiratory protection. Key hazards include eye damage, skin irritation, respiratory effects, and potential long-term health risks from prolonged exposure. 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 — 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 and degrease the surface, then scuff as needed.
2Mask off surrounding panels and trim.
3Mix to the product's ratio and strain.
4Apply 2–3 even coats, flashing between each.
5Let cure fully before sanding, buffing, or assembly.
Specifications
Full data
Frequently asked
Good to know
This listing ships 3M Products MMM in a 22.4 (CN) 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.
The MPN for 3M Products MMM is 8804. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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