10 Russett Avenue, Unit 3
Oshawa, Ontario



SINCE 1972


Why do I need additional rust protection for my car?

Data from a 1995 DesRosiers Survey indicated that without additional rust protection, cars were pretty much certain to show some rust after 6 to 8 years. The survey indicated that with additional rust protection, cars were almost certain not to show any rust even after 13+ years. Additional rust protection will protect your car's resale value or its residual value when coming off a lease.

What kind of rust protection should I get for my car?

Rust Check has a long history of successful automobile rust protection. Time Tested and Proven since 1973. Recipient of the 1997 Consumers Choice award for Automobile Rust Proofing Service. Effective on both new and used vehicles. Complete annual re-applications, not just touch-ups.Lifetime, annually renewable warranty - as long as Rust Check continues to be applied, it will continue to protect your vehicle.

What is your warranty?

Rust Check offers lifetime, annually renewable warranties to all cars less than one model year and to qualified cars up to five model years old. This is not a money-back warranty - if a vehicle rusts from the inside out, we will pay for the repairs in accordance with the Warranty Certificate. The warranty is transferable, and has no mileage restrictions.
NOTE: The warranty is annually renewed when your car is "Rust Checked" at Rust Check Oshawa or any Rust Check Dealer.

Will Rust Check void any new car factory warranties?

NO. Rust Check is an aftermarket product, but it will not void any factory warranties issued by the manufacturer.

How long does an application take?

A typical application takes approximately 1 hour.

What is Rust Check?

Rust Check is a two product process'. Rust Check is a light liquid oil-based product with active corrosion inhibitors. Its main function is to penetrate into crevices, displace existing moisture, and then keep moisture from re-entering. Without moisture, corrosion cannot occur. Coat & Protect is a thicker version of Rust Check, with the same active ingredients. Its thickness gives it good wash and wear resistance. The main function of Coat & Protect is to protect exposed areas of the undercarriage. Unlike traditional undercoating, Coat & Protect is non-drying, so it won't crack or peel. Coat & Protect also is an excellent heavy duty lubricant.

Does your product drip?

Rust Check is a thin liquid product designed to penetrate deep down into the crevices of a vehicle. In order to access these areas you may experience occasional dripage. There is no dripage from our undercarriage application.

Do you drill holes?

A few holes may be required in order to access body cavities that factory design has not allowed for. These holes are approximately 1/2 inch in size, and enable even and complete coverage of each panel.

What is the advantage of an annual rust protection system?

No one time application lasts forever. "Permanent" rust protectants typically offer a warranty for a maximum for 10 years. This means such systems can only delay serious rusting. Furthermore, annual inspections or touch-ups typically are required to keep the warranty valid, so there is no difference as far as the "convenience" factor is concerned.
Rust Check maintains a high level of corrosion protection by completely retreating your vehicle very year. By doing so, Rust Check can offer a lifetime warranty - we will protect your car "forever".

If it rains or snows will the treatment be effective?

Yes. Rust Check displaces moisture, so it can be applied in any weather, and at any time of the year.

Is there anything I should do to prepare my car for an application?

To prepare a vehicle for application all we ask is that the vehicle is clean and the trunk is empty. If the vehicle is a 4 x 4, it is requested that any mud or heavy build up is pressure washed off prior to bringing the vehicle in. These steps will help the technician stay within the estimated 1 hour time limit.

My car already has a different type of rustproofing applied on it, will Rust Check be as efficient in this case?

Yes. In cases where an alternate product such as wax or tar based treatment has been used prior to Rust Check, those products typically show signs of failure after time. Drying, cracking and eventual flaking generally occur allowing moisture to creep beneath the coating, causing rust. Rust Check if applied over these coating also creeps in behind and pushes out the moisture, thus attacking the spread of rust.

Are floor boards covered under your warranty?

Floor boards on vehicles are not covered under the terms of the warranty. This is due to the fact that the majority of floor boards rust from the inside below the carpet, where Rust Check is not applied. A simple precaution to this problem is the use of pantsaver floor mats, which catch the water, snow and ice that is brought into the vehicle by the occupants. This small investment could eventually save you hundreds of dollars in repair bills.

Are there benefits to using touch-up paint?

Stone chips are a major cause of surface rust on vehicles. The use of touch-up paint greatly reduces the risk of paint blisters caused by chips. By taking care of a small problem when it is noticed, it could save you hundreds of dollars in eventual body work costs.


The Jeep CJ and YJ models pose obvious problems as the vehicle is predominantly single panel construction, except for the doors, tailgate and windshield frame. However, these single panel areas can be adequately sprayed from inside the vehicle by simply lifting the carpeting. For the most part, these trim items are not glued to the panels and are easily moved or removed.

The doors have very poor access on the outer casing and for this reason it is best to remove the retainer strap then swing the door around 150 degrees and drill two holes on the forward casing. These holes are best positioned between the door hinges.

The tailgate requires a lower hole at the lowest point on the casing and, two or three across the inside top of the tailgate. This may seem out of the ordinary, but is necessary due to the spare tire support brackets which cause a blockage for the 4' wand.

This windshield frame must be accessed and thoroughly sprayed. This can be done by drilling a 1/2" hole at the lower corners of the windshield frame (located at each end of the dash board). Manufacturer's factory plugs can be found underneath both sun visors along the bottom edge. Just remove these plugs, spray thoroughly and replace them. If it is necessary to drill the upper windshield frame, do so where the plug will he hidden by the sun visor.

All exterior and interior body seams should be sprayed with the trim wand and sprayed again in six months following the procedure for single panel pick up trucks.

Japanese built vehicles with rear hatch door

Certain Japanese built vehicles, namely Chrysler Colts, Toyota Tercels, GLC and, Honda CIVICs, around the area where the rear window wiper assembly is connected to the hatch, has on occasion rusted. To examine this matter a little closer, we spoke with a Honda representative who told us that on a few cars the wiper assembly is installed after the car has been completely assembled and tinted. Consequently, when the hole in the hatch is cut to install the wiper assembly, two problems can arise.

The first possible problem is that the cutting OJ used to make the hole in the hatch is dull. This can cause excessive heat as the hole is being cut. The heat separates the paint from the metal, which then allows moisture to condense on the metal under the paint. This moisture causes rust that expands, which explains the paint bubbles and blisters that start in this area.

The second problem is, in some cases, the metal isn't properly protected around the edges where the hole is cut. The exposed metal allows rust to start and spread under the paint. This causes blistering and cracking of the painted surface.

Please be aware of these potential problems and, bring them to the owner's attention if it pertains to his/her vehicle. Direct them back to their local car Dealer or Area Representative.


There have been numerous surface rust problems with the Pontiac Grand Am, mainly two doors.

Surface rust is occurring at the base of the side rear window molding, due to window molding vibration. The more the molding vibrates, the more it will scratch the paint, and the rust will become progressively more apparent. This surface rust also occurs along the side body molding.

The Grand Am is known to have paint adhesion problems (on the trunk lip, doors, quarter panels, fender wells, etc.) which results in paint blemishes or blisters. The blemishes develop mainly because moisture is being trapped between the paint and the exterior metal causing the paint to bubble. This signifies that the rusting process is well underway and must be stopped.

If you observe this problem, alert the customer. Explain that the Rust Check product cannot stop this process because it is surface rust and encourage the customer to return to their GM dealer. If the vehicle is less than three years old, GM has been known to correct the problem. If the GM dealer does not satisfy the customer, the area representative must be consulted.

This problem can be corrected just as any other surface rust, or cosmetic rust can be, by thoroughly sandblasting, priming and painting the area of concern.


After inspecting numerous surface rust blemishes on all types of Ford Econoline vans, we have related the problem directly back to the manufacturer's paint application process. This problem is not restricted to any particular area; it can appear anywhere between the front bumper and the rear bumper. In some instances large chunks of paint may actually peel off the surface.

These rust blisters can be a cosmetic problem and can be repaired by sandblasting, priming and painting, just like any other surface rust problem.

If this problem is detected early enough, the Ford dealer or Ford area representative will correct the problem. Be sure to make your customers aware of this developing problem. If you see it occurring, alert the customer and advise them to return to the dealer immediately.


Beware of a surface rusting problem around the window trim on these vehicles. This problem is especially apparent on the lower portion of the tailgate/rear door window moldings. One Chrysler representative stated, "In some instances the rear window is installed after the tailgate is completely manufactured, and at times may lack the proper preparation."

It first appears as a small amount of surface rust and will continue to worsen until it becomes a severe problem. If the problem is not corrected, you will begin to see bubbling under the painted surface, as well as rust bleeding down the exterior metal and the paint.


It has been brought to our attention that Mazda pick-up trucks have a manufacturer's defect in the rear fender-well area in the box.

Part of the problem can be attributed to the caulk-filled, seamed areas which will crack and peel, thereby trapping moisture and promoting rust. Rust perforations have been observed in various locations within the fender well itself.

Another location prone to rust is the gas filler/neck area, which acts as a reservoir for road debris. This is a tire manufacturer related problem. Therefore, to protect yourself and the customer, please inspect these areas on all Mazda pick-up trucks. If this problem is apparent, advise your customer to consult with the local Mazda Dealer or the Mazda area representative immediately so that they can take corrective action.


To access the interior side panel of the GM Astro Vans with the 8 wand, you must remove the tail lights and drill a hole toward the top, outer-most area of the tail light insert. (On the passenger side, this would be the top right hand corner of the insert).


Ford Aerostar Vans have developed a manufacturer's design problem very similar to that of Toyota/Nissan/Mazda pick-up trucks.

On the driver's side panel, between the door and rear wheel well opening, a bead of caulking runs along a metal-to-metal seam (sc-.c the photograph). After a period of 3-5 years, this caulking bead cracks, allowing moisture to penetrate the seam area and seep under the painted surface. This, in turn, causes the paint to bubble and peel. This cosmetic problem will eventually turn into a serious rust problem

If this condition is evident on a vehicle you are working on, or inspecting, bring the problem to the customer's attention. Have them return the vehicle to the Ford Dealer. The Ford Dealer may involve a Head Office representative to analyze the problem before taking corrective action.


There have been several cases involving half-ton pick-up trucks corroding on the underside of the boxes.

This situation is caused by mud build-up. This mud build-up must be removed before spraying so that the Rust Check chemical can penetrate the metal.

The quickest, most thorough cleaning method is to knock or scrape the mud loose (a long handled scraper is ideal). Then, using an air pressure hose, "blow the mud away". The undercarriage should then be pressure washed, followed by ''blowing off' of excess moisture with an air hose.


The majority of these vehicles are of single panel construction which creates an overall susceptibility to rust. Since few actual cavities are present, it is necessary to spray both inside and outside of the panels. This is possible by lifting the internal carpets to access floor and side panels.

Jeeps have a large number of caulked seams throughout the vehicle which adds to the overall rust problems that may appear.


On full size Chevrolet Van (diesel- version), there is a complete lower sound barrier across portions of the vehicle. This barrier is Formed of sheet metal and fiberglass insulation and can prevent penetration of Rust Check products from reaching into the area above the plates.


On Legend models, there is a completely enclosed panel under the tail lights running the width of the vehicle.

This panel, much like the similar panel on late Honda Accord, is very prone to rust. A suitable access point to this area is under investigation.


The box on the F150 has a small enclosed area behind the wheel well area. This area is closed in by the plastic well liner and a lower box reinforcement bar.


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