ZEP purple .........which is similar to Purple power, Super Clean and other purple cleaners but stronger. Simple Green is a weak version of the Purple cleaners.
The PH numbers on ZEP are strong. All purple cleaners including SimpleGreen can mark Or discolor aluminum also may damage paint. Full strength purple cleaners can damage aluminum. All these super cleaners are not to used on aircraft.

Available at Menards and other stores
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Last edited by showkey; 09/05/2020 1:31 AM.