Undercoating on 2018 Taco Off Road?

Re: Fluid flim... is it recommended to clean off the frame (no off-roading dirt, just the regular daily-driver grime) prior to the Fluid film application?

 

I just go to the self serve car wash and spray it down with water. Nothing crazy. Make sure it's dry before you apply though

 

Going to have to remember this next year! I ended up buying 6 aerosol cans and hammering the undercarriage. Probably not quite as effective or efficient as a sprayer.

 

I used 4 cans of undercoating to touch up whatever wasn’t done at factory. Having composite bed really helped. Got undercoating from PSC undercoating. Great stuff