On 01/05/2017 12:22 PM, j...@cimmeri.com wrote: > > It's very mild and has been aluminum safe for me (think, aluminum > wheels on cars).
This question of whether Simple Green was aluminum safe came up in the aircraft world a few years back and the answer turned out to be that some ingredient in there is mildly corrosive to aluminum. Not badly so and if you managed to flush it off with water then no problem but if a bit of cleaner were to weep into a crack and not get get cleaned off then over time it might be a problem. Not too long after that Simple Green came out with a new formulation, Simple Green Extreme or something like that, that *was* aluminum safe. So look for the Simple Green that's sold for cleaning airplanes if you're cleaning around aluminum. Dave