Purpose of material under fuel tank in aluminum boat?

Wildey

Petty Officer 1st Class
Joined
Nov 24, 2021
Messages
202
In the aviation world, similar products are referred to as "anti chafe".
It doesn't dampen any vibrations of mating parts, but prevents the abrasive erosion of either component.
Many parts/components will ALWAYS move/rub against each other.
This just helps to insure they don't eat each other.
 
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