Advise on preserving wheels

[P_G]

No problem and you should have some spare. Used to be able to do the RS4's 7 twin spoke 19" rims with a 15ml bottle and have some left over. I have just finished a 30 ml bottle which did the RS4's rims before I sold it; the wife's A2 15" pepper pot rims and a coat on the RS3's 19" Rotors.