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Monday, 31 August 2020 16:28

Restore Crashworthiness with Corrosion Protection---Keys to a Safe and Proper Collision Repair

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“Today’s vehicles are highly engineered and not forgiving of imprecise repair processes. When it comes to crashworthiness after the repair, millimeters and milliseconds matter!” according to Scott Peirce, strategic account manager at 3M, during ASA’s Aug. 19 "Webinar Wednesday."

“The responsibility to restore crashworthiness lies with you, your business and your technicians," Peirce said. "Many products and processes combine together to restore the initial condition of the vehicle so it’s capable of handling a subsequent collision.”

 

Peirce explained corrosion protection is vital to restoring a vehicle’s crashworthiness. Corrosion can impact airbag timing, and fatalities are more likely due to rust.

 

“If you can effectively access the area with a traditional paint spray gun, corrosion protection is best achieved by applying a direct to metal primer, followed by the vehicle’s color and clearcoat to achieve recommended dry film thicknesses, if and as required, per the specific paint company and vehicle manufacturer’s guidelines,” he said.

 

“If you cannot effectively access the area with a traditional spray gun, that is when materials like weld-through primer and cavity wax may be the most appropriate solution to help restore corrosion protection,” he continued. “A vehicle’s ability to resist corrosion could be significantly compromised if the vehicle manufacturer’s corrosion protection is not restored. This could also lead to future issues with safety and/or resale value.”

 

3M Business Development Manager Mark Algie joined in to look at a case study of a damaged bumper and examine the requirements related to 1500 MPA high strength steel frame rails.

 

“OEM repair procedures need to be reviewed to determine repairability," Algie said. "It looks like a simple repair, but the OEM procedures tell us the left rail has to be replaced and there are a lot of other major components that could be impacted by this collision. You have to take the rail apart, and it’s going to involve a lot of parts. It becomes a very intrusive repair, but that’s what it takes to correctly restore this vehicle to its pre-accident condition.”


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