Promatic Stone Chip White Spray Paint - STW500
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OnBuy.comPromatic Stonechip Aerosol Scw500 - 500Ml White 5055574900220
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£12.38
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Promatic Stonechip White Aerosol Scw500 - 500MlFree delivery in 1–3 days£12.38Visit shop →
Product Information
Full details
The Promatic Stone Chip White Aerosol (STW500) is designed for automotive enthusiasts and professional technicians who need a durable, rubberized protective coating for vehicle underbodies and wheel arches. Its primary strength lies in its excellent corrosion resistance and ability to dampen road noise, providing a tough barrier against acids, salt, and weathering. While it offers superior protection and finish, users should note that as an aerosol, it requires careful application technique to ensure even coverage without drips, particularly in hard-to-reach areas.
All features
| Model Part Number | STW500 |
|---|---|
| Brand | Promatic |
Extended Product Information
FAQs
How much area can one can cover?
Each 500ml aerosol covers between 1.56 and 2.19 square meters depending on the thickness applied.
Can I apply this over rust?
It is highly recommended to remove as much loose rust as possible and treat the metal with an anti-corrosion primer before applying the stone chip spray for the best results.
Is the finish matte or glossy?
The product typically dries to a semi-matte or satin-like finish common for stone-chip protective coatings.
How long should I wait before painting over it?
While it is touch-dry in 60 minutes, it is best to allow the product to cure thoroughly (usually 24 hours) before applying a topcoat.
Does this product require a primer?
For bare metal, using an appropriate automotive primer is recommended to ensure long-term corrosion resistance and adhesion.
Can I use this in an enclosed garage?
No. Always use this product in a well-ventilated area or outdoors to avoid the inhalation of harmful aerosol vapors.
Troubleshooting
The spray nozzle is clogging during use
Remove the nozzle and soak it in paint thinner, or flip the can upside down and clear it by spraying until only gas is released.
The coating is peeling after a short time
This usually indicates inadequate surface preparation. Ensure the area was free of wax, oil, and loose rust before application.
Drips and runs appearing on vertical surfaces
You are holding the can too close or moving it too slowly. Use lighter coats and keep the can moving at a steady pace.
Pros and Cons
Pros
- Superior resistance to acids, alkalines, and environmental weathering
- Effective at dampening road noise and vibrations
- Flexible coating that prevents cracking
- Compatible with most topcoat paints
- Easy-to-use aerosol delivery system
Cons
- Limited coverage area per 500ml can
- Requires proper ventilation during application
- Not suitable for use on high-temperature engine components
- Surface preparation is critical for maximum adhesion
Setup, Compatibility & Care
Before application, ensure the target surface is clean, dry, and free of loose rust or grease. Using a degreaser is recommended for optimal adhesion. Shake the aerosol vigorously for at least two minutes before use.
- Compatibility: Safe for use on properly primed metal, though testing on a small, inconspicuous area is always advised.
- Drying Times: The product is dust-free in 30 minutes and touch-dry in approximately 60 minutes. Allow extra time for full curing before exposure to harsh driving conditions.
- Care: Store in a cool, dry place away from direct sunlight. Clear the nozzle by turning the can upside down and spraying for a few seconds after each use to prevent clogging.