Rust Treatment
Currently in the automotive industry when it comes to Rust Repairs – there are a limited number of options.For minor surface rust on a small area a use of a metal brush would suffice.When rust has spread over a large area of a vehicle (for example, underbody) the most economical and efficient way is Sandblasting.
Sandblasting applies sand particles mixed with high pressure air to remove paint, rust or other contaminants from metal surfaces. The sand particles are small enough so they don’t embed themselves into the metal. The effect is similar to that of using sandpaper, but provides a more even finish with no problems at corners or crannies. The result is clean bare metal and it can very quickly get rusty again if left untreated and unprotected, therefore a Rust Proofing is required.
Sandblasting applies sand particles mixed with high pressure air to remove paint, rust or other contaminants from metal surfaces. The sand particles are small enough so they don’t embed themselves into the metal. The effect is similar to that of using sandpaper, but provides a more even finish with no problems at corners or crannies. The result is clean bare metal and it can very quickly get rusty again if left untreated and unprotected, therefore a Rust Proofing is required.
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The worst case scenario is when a sever corrosion has advanced to the point where the metal has been penetrated throughout. No metal remains at the point of the most severe corrosion - there are holes in the surface area or metal is completely missing along the edges. In this case the only solution is to cut back to sound metal and new metal welded in, or the affected part is completely replaced.
Since cutting out body parts can compromise safety and structural integrity of the vehicle – these types of repairs are usually supervised and certified by NZTA licensed Repair Certifier.
Reliable NZ has an independent NZTA appointed Repair Certifier who comes on site to inspect, oversee and certify the repairs.
Reliable NZ has an independent NZTA appointed Repair Certifier who comes on site to inspect, oversee and certify the repairs.
The process of underbody Sandblasting:- bring the vehicle into the sandblasting booth- remove wheels, underbody covers, wheel arch liners- sand blast all rust affected areas back to bare metal- check for any severe corrosion (spots where rust has penetrated through metal leaving holes).if severe corrosion has been detected the only solution is to cut back to sound metal and new metal welded in, or the affected part is completely replaced.
The process of underbody Rust Proofing:- vehicle is transferred to the underbody paint booth- masking up all painted surfaces and glazing to prevent overpay- application of etch or epoxy rust converter to prevent rust from coming back- application of underbody sealer- application of cavity wax to inside chassis, cavities, seams to repel the moisture- remove masking
- refit wheels, underbody covers, wheel arch liners
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