Overview
Built for the job.
A 1K rubberized undercoating, suitable for application on vehicle underbodies, quarter panels and wheel wells. It’s easy to use and can be overpainted for a customized finish. Dries to a soft finish that protects against rust and stone chips while reducing road noise.
U-POL Raptor Rubberized Undercoating is a protective coating system designed for underbody applications in automotive restoration and collision repair. This 12-pack configuration provides comprehensive coverage for larger projects, delivering durable protection against road debris, moisture, and corrosion while maintaining flexibility to resist cracking under vehicle flex and vibration.
The coating applies effectively to multiple substrates including aluminum, bare metal, galvanized surfaces, plastic, and primer, requiring two coats for optimal protection. With a 5-year shelf life, the product offers excellent storage stability for shop inventory management. The formulation contains 656 g/l (5.5 lbs/gal) VOC content, requiring proper ventilation and appropriate respiratory protection during application to ensure compliance with workplace safety standards.
Why Pros Choose U-POL UPO
- Suitable for underbodies, wheel well, fenders, tail gates
- Textured rubberized finish
- Protects against stone chips, salt spray, moisture and rust
- Durable and abrasion resistant
- Excellent adhesion — suitable for metal, aluminum, fiberglass, plastic and wood
- Reduces road noise
- Can be overpainted.
Application Guide
- Ensure substrates (aluminum, bare metal, galvanized, plastic, or primer) are clean and properly prepared
- Apply first coat of rubberized undercoating at proper distance from surface
- Allow first coat to cure completely
- Apply second coat following same application distance requirements
- Allow final cure before exposing to service conditions
Compatibility
Compatible substrates: Aluminum, Fiberglass, Plastic, Wood.
Compatible paint systems: 1K.
Specifications
| Part No. | 4840 |
|---|---|
| Product Line | UPO |
| Manufacturer | U-POL |
| UPC | 0501079610206 |
| Rubberized | No |
- VOC Content
- 656 g/l (5.5 lbs/gal)
- Shelf Life
- 5 years
- Compatible Substrates
- Aluminum, bare metal, galvanized, plastic, primer
- Number of Coats
- 2
About U-POL
U-POL delivers pro-grade refinish products including Raptor bed liner, Dolphin glazes, and Power Can aerosols used in shops worldwide.
Frequently Asked Questions
What surfaces can I apply this undercoating to?
RAPTOR Rubberized Undercoating adheres to aluminum, bare metal, galvanized surfaces, plastic, and primer. Ensure substrates are properly cleaned and prepared before application.
How many coats should I apply?
Apply 2 coats for proper coverage and protection. Allow adequate flash time between coats according to application conditions.
What's the VOC content of this product?
The VOC content is 656 g/l (5.5 lbs/gal). Ensure adequate ventilation and comply with local air quality regulations during application.
How long can I store this product?
Shelf life is 5 years when stored in original, unopened containers under proper storage conditions.
Documents & Safety
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.
Cure & dry schedule
Timing at 77°F
Touch Dry
30 minutes
Recoat
at least 4 hours
Dry-Through
overnight
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
U-POL UPO is compatible with Aluminum, Fiberglass, Plastic, Wood. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
Most in-stock orders for U-POL UPO 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 U-POL 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 U-POL UPO is 4840. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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