Overview
Built for the job.
GRAVITEX PLUS is a hard, durable underbody coating that can also be used to reproduce the manufacturer's original stone chip protective finish.
U-POL GRAVITEX PLUS UP0721 is a high-solid stone chip protector designed to shield automotive substrates from impact damage and road debris. This single-component coating provides durable protection for underbody components, wheel wells, and other high-impact areas where stone chip resistance is critical.
The formula cures in 4 to 6 hours and can be applied in 1 to 2 coats depending on protection requirements. Compatible with aluminum, bare metal, fiberglass, polyester, primer, and SMC substrates, making it suitable for both OEM and aftermarket applications. With a 425 g/l VOC content, ensure adequate ventilation during application and follow proper spray booth protocols.
Supplied in a convenient 1-liter bottle with a 2-year shelf life when stored in the original sealed container. The black finish provides a professional appearance while delivering long-term protection against environmental and mechanical damage.
Why Pros Choose U-POL UPO
- Ready for use 1K formula - no measuring or mixing required
- Protects against stone chips, salt, rust and dampness
- Helps to deaden sound and vibrations - ideal for inside engine compartments and panels
- High build formula covers weld marks and seams
- Can be painted once dry
Application Guide
- Ensure substrate is clean and properly prepared. Compatible with aluminum, bare metal, fiberglass, polyester, primer, and SMC surfaces.
- Apply 1-2 coats of GRAVITEX PLUS using appropriate spray equipment.
- Allow 4-6 hours curing time between coats and before handling.
Compatibility
Compatible paint systems: 1K.
Specifications
| Part No. | 0721 |
|---|---|
| Product Line | UPO |
| MFR Model | UP0721 |
| Standard/Approvals | GHS02, GHS07, GHS08 Hazard | California Pro65 Warning: Cancer and Reproductive Harm |
| Manufacturer | U-POL |
| Trade Mark | GRAVITEX PLUS® |
| UPC | 501079610142 |
| Brand | U-POL® |
| Container Size (L) | 1 |
| Rubberized | No |
| Color | Black |
| Container Type | Bottle |
| Form | Liquid |
- VOC Content
- 425 g/L
- Shelf Life
- 2 years from manufacture date in sealed container
- Curing Time
- 4 to 6 hours
- Application Coats
- 1 to 2 coats
- Compatible Substrates
- Aluminum, bare metal, fiberglass, polyester, primer, SMC
- Package Size
- 1 L bottle
- Color
- Black
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 use this on?
GRAVITEX PLUS can be applied to aluminum, bare metal, fiberglass, polyester, primer, and SMC substrates. Ensure proper surface preparation and cleanliness before application.
How long does it take to cure?
The stone chip protector requires 4 to 6 hours for full curing time.
How many coats should I apply?
Apply 1 to 2 coats depending on the level of protection required and substrate conditions.
What's the shelf life of this product?
GRAVITEX PLUS has a shelf life of 2 years from the date of manufacture when stored in the sealed original container.
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
Between coats
10 - 15 mins
Drying Times
4 - 6 hours
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 U-POL UPO in a 1 (1L) container. Check the autofxmart catalog for other sizes and bulk pricing.
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 0721. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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