Tectyl

["George Schiro" <GSchiro@qsky.com>]

There has been previous discussion about using POR to rust proof chassis. 
I recently came across a material called Tectyl 506G that is used to rust
proof the insides of hollow chassis members.  I believe it is made by
Valvoline.  You spray it inside the chassis using airless spray equipment. 
It is used to protect bus chassis from corrosion from road salt.  I have no
idea how well it works or what it costs.  There is also an undercoating
material called Tectyl 127CWG.

George Schiro