Bed liner is fine if your going to keep the car... go to sell it and it looks like its covering up stuff a lot more than undercoating. I've done it before... if the prep isn't really good, be prepared for it to fall off in chunks/crack etc. Undercoat sticks a lot better and flexes better.
[quote=Silver70]I've done it a lot! There is so much wrong with this post right here it ain't funny. I scraped the factory undercoating off of my car and torched some of it off. Believe me if anything is going to hide anything it's factory undercoating and Bedliner sticks as good and will not crack and it does flex. Bedliner will show more than undercoating and you just can't gob it on and cover up $hit like your letting on.
