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eBay£39.73Visit shop Tetroseal Aerosol Underbody Sealant x6 Car Underseal Spray 500ml Seal Protection
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The Tetroseal Aerosol Underbody Sealant is an ideal solution for car enthusiasts and DIY mechanics looking to extend the lifespan of their vehicle's undercarriage. This 500ml aerosol spray offers a durable, black protective coating that shields exposed surfaces from rust, corrosion, and road debris impact; however, it requires thorough surface preparation to ensure proper adhesion and long-term effectiveness.
| Model Part Number | Paint black finish long lasting protective coating |
|---|---|
| Brand | Tetroseal |
It is highly recommended to remove all loose rust using a wire brush before application to ensure the sealant bonds correctly to the metal.
It is suitable for general underbody use, but should not be applied to exhausts or high-temperature engine components.
Typically, two to three cans are sufficient for an average-sized car, depending on the thickness of the application.
Tetroseal is formulated to adhere directly to clean metal surfaces, so a primer is generally not required.
The sealant is intended as a final protective finish, and its texture may not be suitable for top-coating with standard automotive paints.
Turn the can upside down and spray for a few seconds to clear the nozzle or remove the tip and soak it in a solvent cleaner.
This usually indicates the surface was not clean or dry enough before application; strip the area and re-apply on a clean, degreased surface.
Before application, ensure the vehicle underbody is entirely free of dirt, grease, rust, and loose flaking paint. Use a pressure washer to clean the area and allow it to dry completely. Mask off areas that should not be coated, such as exhaust pipes, brake components, and suspension joints. Shake the aerosol can vigorously for at least two minutes before spraying. Hold the can 20–30 cm from the surface and apply in light, even coats. Allow sufficient drying time between layers. Store the can in a cool, dry place away from direct sunlight to maintain the integrity of the propellant.
