How to paint your aluminium boat at a cheap cost ! i bought a use 16' aluminium boat a couples months ago for 300$, the only problems was the paint of the boat.. Painting the inside of an aluminum boat. post by fudd_elmer » mon oct 25, 2010 6:28 pm . i originally posted this question on another forum and it was recommended. If you would like to paint the inside of an aluminum boat, you will have to contend with two complications. first, because aluminum is a nonporous surface, it is not.
