[Spridgets] Undercoating

[Michael Rowe]

We get a lot of salt spray on our lawn that rots out the mower deck, so I sprayed rubber undercoating left over from the car on the inside of my new mower to reduce corrosion.  The first mowing scrubbed it all off.  So I sprayed WD40 yesterday.  It scrubbed off in minutes.  I would not guess that flying grass is especially abrasive, but it is like media blasting.  Any recommendations beyond hosing it off every time?

Michael Rowe
'74 Midget
'60 Bugeye kit
Long Island, NY