Rustop Products
Enviro RS-100
Retail Products
Frequently Asked Questions
The Rustop Process
Rustproofing is the process of applying a rust-inhibiting product to the underside and inside of the vehicle's body as well as any other rust-prone areas. Not to be confused with undercoating which treats only the underside of the vehicle. Commercial rustproofing treatments usually include a guarantee for a certain number of years. Rustop offers a limited lifetime guarantee on qualified vehicles when treated on an annual basis.
- Inner Body Panels And Drilling
Always minimize drilling by using existing factory openings (drain holes, vents, door mechanisms, etc.) to rustproof inner body panels.
If no appropriate access points are available, then a suitably located access hole must be drilled. The hole is than sealed with a rustproofing treated plastic cap plug.
- The Doors
One hole in the lower section will allow adequate rustproofing product to protect the inner door panels.
- Rocker Panels
For four-door models, one hole in the center of each door opening is usually sufficient.
In the case of two-door models, or four-door models with an unusually long front door, two holes will be required, about a third of the way in from either end.
- Center Pillar (4-Door Models)
Drill the lower hole at a 45-degree angle in the lower elbow area to rustproof the center pillar.
- Rear Pillar
The rear pillar of a two-door vehicle should be drilled at a 45-degree angle in the lower elbow as well as just below the windowsill. Try to remain close to the outer skin.
- Front Fenders
This is accomplished by opening the front door and you will see an opening near the top of the fender.
- The Hood
Most hoods have enough pre-punched openings for effective product application without drilling.
- The Trunk Lid
Most standard trunk lids have enough openings and do not require drilling.
- Sliding Doors
Two holes must be drilled in the sliding door, one just above the handle on the leading edge of the door, the other approximately 6” above the bottom seam. Drill at the rear of the door.
- Hood (Open Spray)
Lightly rustproof the underside of the hood. Rustproof the outer edges first. There is no need to spray sound insulation.
- Vehicle Underside
Using a spray wand, rustproof around the arch of the wheel wells, behind the tires and around the shock towers. Using the rustproofing gun, open spray the product to cover the rest of the wheel wells. Do not rustproof the brake assemblies.
Using the rustproofing spray wand, rustproof starting from the front of the vehicle and work your way to the back. Rustproof all enclosed areas which you will not be able to reach with the open spray: In both front and rear bumpers, inside cross members and framing, all body supports, over the heat shield, over gas tank, front fender opening, and any other enclosed areas.
Next, use the rustproofing gun to start applying the product from the front end toward the rear of the vehicle. Apply a thin, uniform layer to all exposed areas of the undercarriage.
Once the undercarriage has been rustproofed from front to rear, start at the rear of the vehicle and work back toward the front, checking the surfaces for adequate coverage. Rustproof any missed areas. Wipe any over-spray from the excluded areas listed above.
