Did this to the floor and interior step area of my 59. Got the idea from a kid who had done the whole inside of his off road IH. Main reason I went this way was figured the bed coating would be a lot more resistant to rub thru than paint even if under padding and rubber mat. Don't think the liner material will cut down on noise and heat all that much but is pretty much bulletproof. I used Duplicolor which is available at parts houses and WalMart and used a short nap roller and brush for application. Turned out nice looking but not tested for wear as yet. If you go this route you definitely want to apply outside on a breezy day as this stuff will put you in orbit quick.
Bruce


Bruce
Old Toy: Ol' Betsy stock 59 Apache SB Stepside (Gone but not Forgotten)
New Toy: 1962 Impala SS Coupe
The Driver: 1990 Toyota truck