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FREQUENTLY ASKED QUESTIONS

Rust is the normal oxidation process of iron, steel, and other metals (the stuff your vehicle is made of). Metal combined with air will decompose the metal from a strong material into a brittle, flaxy, weak rust. Water and salt accelerate this.

Every year, rust costs billions of dollars in car repairs in the United States and road salt and de-icers are at fault 90% of the time.

These winter road de-icers may make driving safer, but they're also known for causing corrosion to grow on cars.

Years of contact with magnesium chloride, or sea salt, cause many of the more severe cases of vehicle rust.

De-Icer is cheap, easy to come by, and an incredibly good when it comes to thawing out frozen moisture, but it's also a significant hazard for exposed metal surfaces.

When magnesium chloride (or sodium chloride) comes into contact with the correct amount of moisture and oxygen, it can produce a significant acceleration of rusting.

YES!!

Iron and steel suffer from quick rusting. These are the materials used in many vehicles. Some newer vehicles use more rust-resistant materials (like aluminum) in some areas of the body, but the frame, chassis, and other parts are usually still steel (and not stainless steel).

The fact is, vehicle metal is subjected to thousands of spot welds and numerous bends and folds during production. This process damages the metal, allowing exposure to the corrosion process. Besides cosmetic damage, corrosion also weakens a vehicle’s structural integrity and can affect steering and suspension components.

There are several reliable car brands where the weak link of the car is not the engine or transmission, but rather the metal.  

As our motto says: "If it's worth owning, it's worth protecting". We believe our price makes this service the best preventative maintenance item for longevity and value of your vehicle.

You might already be familiar with the term "undercoating" if you reside in a snowy or coastal area, so for the rest of us, here's a summary.

The top of your vehicle has paint (color and clear coats) to protect the body. However, the underneath; frames, oil pans, transfer cases, suspension arms, chassis, fuel tank, and other metal components will be exposed to the elements and corrode/rust eventually.

An undercoating is the first line of protection between a vehicle's metallic underside and the elements.

The most significant benefit of having an undercoating applied to the underside of a car is that it protects it from rust and corrosion to a great extent. 

With some types of undercoating, there's no assurance that a rust bubble won't form where a stray rock collided with your recently applied coating. Which is why we use oil (not ceramics, enamel, or hard rubberized). The products we use remain wet to touch and self-heal by slowly creeping across the affected metal.

  • Fully Mobile - we can come to you. Super convenient.
  • Only the best products used. NHOU is the leading manufacturer of rust fighting products. We are a proud authorized service-provider.
  • Not only undercoating. Our service includes rustproofing inside door panels, the hood panel, tailgate panels, side panels (if we can access them), and any other raw metal we can get to. We also fully remove spare tires to ensure we apply protective coatings to all areas and the spare tire hoist.  
  • CARFAX reporting - increased resale value.
  • Proven with 5-star reviews. Please read them and rest-assured that customers love our product, service, and values (caring, honesty, integrity). 
  • Great value. All of the above at a fair price.

These mineral-oil based products are designed to create a barrier that can’t be broken, chipped, or cracked. By staying fluid, our oil-based rust protection heals back over after any abrasions, providing lasting protection even in extreme conditions

Unlike paint or conventional undercoating, which covers and encapsulates rust, our oil penetrates through rust to the base metal. Our oil is self-healing, designed to displace moisture and remove oxygen. Take either out of the equation, and oxidation cannot occur. Our corrosion inhibitors will then fight rust on a chemical level. Our oil is formulated to penetrate deep into seams, body cavities, and spot welds, creating a barrier against the elements in an environment prone to moisture and conducive to corrosion.

NH Oil Undercoating will provide you with superior protection. It remains soft, compensates for heat, will not dry or crack like traditional hard coatings, and will substantially reduce the corrosive effects your vehicle is subject to. In our opinion, oil-based rustproofing is the most effective way to treat corrosion.

Exact same product other than a carbon graphite biodegradable black tint to improve the surface appearance of Back-n-Black.

We use Mouse-Out Clear which has added peppermint oil and predator pheromones to deter rodents from nesting, chewing, and hanging out in your vehicle's engine.

Absolutely not! Because NH Oil Undercoating® is an entirely different approach, it eliminates annoying electrical malfunctions and makes the vehicle work better and last longer. While the manufacturers probably won’t admit it, they love NH Oil Undercoating® because it will reduce the number of corrosion related warranty claims they are obligated to pay. It also saves customers the time and aggravation associated with claims against warranties. NH Oil Undercoating is used and sold by most major manufacturers' dealerships.

NHOU is atomized under high pressure which pushes the product deep into the seams, cracks and crevices where corrosion starts. Once applied, the product removes the moisture in these areas and provides a strong adherence to these surfaces, remaining active with excellent “creeping” and self-healing abilities.

We have all the equipment in our mobile van and can come to your location. We also have a facility in Bethpage.

Yes, it can. Because oil chases water, it can be applied on rainy days. Some competitor’s products are designed to mix with water, with the idea that when the product drips off, the water goes with it. Not so with our products. We make sure that our chemical chases only the water from the metal. This is another reason why our products provide longer-lasting protection for your vehicle.

In most cases, if your vehicle has a heavy residue of mud or flaky rust it would be necessary to remove this before treatment. We recommend that any very heavy accumulation of mud and dirt be washed from the frame and wheel wells a day before the application. Note, for heavy rust, arrangements may be necessary to allow adequate time for preparation and additional costs may occur.

You can wash your vehicle immediately after the treatment (but please avoid high-pressure undercarriage washing). Unlike other preventing methods, it will not trap moisture. It literally pushes it away, leaving behind a corrosion-fighting lubricating film.

Please note: With the introduction of road brine (liquefied salt) by many municipalities, an extremely corrosive solution is now able to penetrate deep into your vehicle’s body cavities where rock salt could not. Many of these road brine solutions contain magnesium chloride, calcium chloride, and additives to help them stick to surfaces. The problem is, they don’t discriminate. For most people, a car wash is part of their maintenance program. Unfortunately, this can prove detrimental to combating corrosion. Many car washes recycle water, likely not eliminating all of the corrosive solutions. Combine that with the fact that it’s pushing high-pressure water into your vehicle’s undercarriage where it was never intended to be, which can be very counterproductive. The best car wash is a hand wash on the painted surfaces only.

No. NHOU is non-conductive and will not harm electrical connections. 

No - we stay away from the internal components (brake pads).
It is highly unlikely, but if you notice a noise when braking, it may be due to a very small amount of overspray that might have reached the brake lining. This is not a safety hazard, and it should cease after a few stops.

You may notice smoke and odor from the underside of the vehicle the first time the vehicle is driven. This is due to a small amount of overspray vaporizing on the exhaust system. It is harmless and should cease quickly.

NH Oil Undercoating is formulated not to drip. However, minimal dripping may occur if the product is applied heavily. 

A few rains will clear this right up (since it's biodegradable mineral-oil based). Should it get anywhere besides the street, clean up is simple. Dawn dish soap or Simple Green usually does the trick.

We recommend 20,000 - 40,000 miles. The range is due to how much salt, sand, deep puddles, and gravel one drives through.  

If you do re-apply NHOU with us every year, we will provide a rustproof guarantee.