U-Pol Gravitex Stone Chip Protector - 1000ml
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Product Information
Full details
The U-Pol Gravitex Stone Chip Protector is an essential tool for automotive enthusiasts and professionals looking to preserve vehicle underbodies and lower panels from environmental damage. It provides a robust, rust-resistant barrier that shields against road debris, salt, and moisture, making it ideal for high-wear areas of a vehicle. While it offers excellent protective capabilities, users should note that proper surface preparation is critical to ensure the high-build formula adheres correctly for long-term durability.
All features
| Colour | Multicolor |
|---|---|
| Model Part Number | GRA/NBBW1-12 |
| Brand | U-Pol |
| Container Volume | 1000ml |
Extended Product Information
FAQs
Can I apply this product with a brush?
While it is technically possible, this product is specifically formulated as a high-build sprayable coating for use with underbody spray guns to achieve a uniform, professional-grade texture.
How long does it take to dry before I can paint over it?
Drying times vary based on ambient temperature and humidity. It is best to allow the coating to cure for several hours, ideally overnight, to ensure it is completely set.
Does this product prevent existing rust from spreading?
It provides a protective barrier, but it is recommended to treat or remove existing rust before application, as the product works best as a preventative seal.
Is it safe for use on plastic bumpers?
Gravitex is designed primarily for metal vehicle panels. If applying to plastic, use an appropriate adhesion promoter first to ensure the coating does not flake off.
What is the volume of the container?
Each container holds 1000ml of product.
Troubleshooting
Coating is not adhering to the metal surface
Ensure the surface was degreased and sanded correctly; remove any loose rust or wax before application.
Texture appears uneven or inconsistent
Adjust the air pressure on your spray gun; higher pressure typically creates a finer texture, while lower pressure produces a coarser, thicker finish.
Paint is bubbling or peeling after topcoating
The Gravitex must be fully cured before overpainting; ensure the environment is warm and dry to facilitate proper curing.
Pros and Cons
Pros
- Excellent resistance to stone chips and road abrasion
- Effective at preventing rust on exposed underbody metal
- Compatible with most standard automotive paints for a color-matched finish
- High-build consistency ensures maximum coverage with fewer passes
Cons
- Requires specific spray equipment for optimal application
- Needs thorough surface preparation to ensure proper adhesion
- Requires drying time before it can be overpainted
- Not suitable for use on non-automotive plastics without adhesion promoter
Setup, Compatibility & Care
To achieve the best results, ensure the application surface is clean, dry, and free of contaminants. Use a degreaser before application to ensure maximum mechanical bond. The product is intended for use with a professional underbody coating spray gun, which allows you to adjust the texture by controlling the air pressure and trigger distance.
Care instructions involve keeping the container tightly sealed when not in use and storing it in a cool, dry place to prevent the material from thickening or drying out within the bottle. If you are painting over the surface, verify the drying time based on ambient temperature and humidity before applying any topcoat.