U-POL raptor as undercoating
 

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Firewall Removed sub frame
Good day folks, I cannot rest until I have a plan. I have spent the past 2 days researching and asking about undercoating. The only way to be satisfied with the final result will be for me to strip down the underside. With that being said, I see a lot of hits on U-POL raptor bed liner as an undercoating. Has anyone used it? Does anyone suggest tips or other recommendations? The cost is very reasonable with the kit included spray gun.
Thoughts?
Don