the acid (should not) hurt the liner , but it wouldnt hurt to spray it with a little water if it gets on it.
As far as the aluminum, it will etch it to a degree, making it look a little dull.. clean but a dullish finsh. And this depends on how long you leave the acid on and how s0rtong you mix it. Better to go a little weak and try a spot till you get what you want.
If you want it to shine, aluminum polish,elbow grease,sweat and beer.
