Simply Auto Underbody Coating - White - 1L
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Product Information
Full details
The Simply Auto Underbody Coating is designed for vehicle owners who want to extend the lifespan of their undercarriage by protecting it from harsh environmental factors like road salt, moisture, and corrosion. This 1-litre rubber-based formula is ideal for cars, 4x4s, and trailers, providing a resilient, sound-deadening shield that stands up to daily wear and winter road debris, though it requires a clean, dry surface for optimal adhesion.
All features
| Model Part Number | SP-043 |
|---|---|
| Brand | Simply |
Extended Product Information
FAQs
Can I apply this over existing rust?
Yes, it can be applied over surface rust, but it is best to remove as much loose scale as possible with a wire brush for optimal longevity.
Is it safe to spray on the exhaust system?
No, do not apply this coating to the exhaust system or any components that reach very high temperatures, as it is not heat resistant.
How many cans do I need for a standard car?
One 1-litre container is usually sufficient for smaller areas, but a mid-sized car or 4x4 may require 2-3 litres for full coverage.
Can this be painted over?
This product is designed as a final protective layer. Check the specific compatibility of your paint if you intend to overcoat it.
Does it need to be thinned before using a spray gun?
The consistency is designed for direct application, but you may lightly thin it if your spray equipment specifically requires a lower viscosity.
Troubleshooting
The coating is not sticking to the surface
Ensure the surface was completely free of grease, oil, and moisture prior to application.
The coating remains tacky after 24 hours
High humidity or low temperatures may slow the curing process; move the vehicle to a warmer, drier environment.
Pros and Cons
Pros
- Provides an effective seal against salt and moisture
- Helps dampen road noise and vibrations
- Flexible finish prevents flaking or cracking
- Simple application process for DIY enthusiasts
- Compatible with a variety of vehicle types
Cons
- Requires thorough surface preparation for best results
- Long drying time in cold or humid conditions
- Must be applied in a well-ventilated area due to fumes
Setup, Compatibility & Care
Before application, ensure the vehicle underbody is thoroughly cleaned of all dirt, grease, and loose rust; pressure washing followed by complete drying is recommended. Mask off any areas you do not want to coat, such as exhaust systems, brake discs, or sensors. If using a spray gun, ensure the nozzle is clear and the consistency is appropriate for your equipment. Once applied, allow the vehicle to sit in a dry area for at least 24 hours to ensure the rubber-based formula cures correctly. Avoid driving through water or mud immediately after application to prevent contamination of the wet coating.