5 things you should know before choosing a rust protection spray
, by Raphael Rotterdam, 3 min reading time
🛠️ 1. Is there already rust on your vehicle?
If your car already has rust spots, you shouldn't use wax-based, varnish-like, or rubber-based protective coatings. These seal the surface and trap moisture. The result: The rust process continues unhindered.
Instead, use oil-based rust protection products : They penetrate the rust layer, reach the still intact metal, displace moisture and oxygen and thus stop the further oxidation process.
📌 2. Can the protective layer reach all areas?
Yes – provided you use a spray with high penetrating power that spreads evenly.
This is especially important for hard-to-reach areas such as cavities in the bodywork – this is where rust often develops first because moisture collects there and protection is often inadequate.
💧 3. Is it normal for rust protection spray to drip?
High-quality rust protection sprays are formulated to barely drip.
Therefore, only choose products that have been specifically developed for rust prevention in the automotive sector – these benefit from intensive research and targeted application technology.
⏳ 4. How long does rust protection spray take to cure?
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Oil-based products remain permanently flexible and soft – they form a self-healing protective layer that does not chip or crack.
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Hard coatings (e.g. bitumen) usually take up to a week to fully cure.
🛞 5. Which product also improves the appearance of rusty surfaces?
NHOU® Back N Black not only offers optimal protection, but also a visual enhancement:
This oil-based spray colors the treated area a deep black, making even rusty areas look cared for and "like new." At the same time, it offers the same corrosion protection as the clear NH version.
💡 Why rust protection spray is worth it
✔ Saves high repair costs through early prevention
✔ Maintains vehicle value through preventive protection
✔ Extends the life of your car
✔ Protects safety-relevant components from failure due to rust
🛡️ NH Oil Undercoating® – The classic in rust protection
Although vehicle technology is becoming increasingly modern, rust remains a constant problem – especially due to the increasing use of salt solutions (brine) in winter service.
While these are effective against ice, they are extremely aggressive toward metal parts on the underbody. They adhere strongly, penetrate deeply, and massively promote rust formation.
According to a 2017 AAA analysis, vehicle owners spend over $3 billion annually on repairs due to corrosion damage caused by de-icing salts.
🔧 Why NHOU Rust Protection Oil is a strong choice:
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Solvent-free and environmentally friendly
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Extremely resistant to brine and road salt
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Weather-resistant for long-lasting protection
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Efficient in use – ideal for do-it-yourselfers or specialist workshops
Early use of rust protection pays off twice:
More safety, higher resale value and longer lifespan of your vehicle.