Originally Posted by jptonks
Sometimes the weather is too cold/rainy/windy to wash my 2008 C6. When this happens and I want to remove the existing sealant/wax so that I can apply a fresh coat, I have heard that you can use alcohol to remove the old applications. Sometimes I see denatured alcohlol recommended; other times I see isoproply accohol recommnded.
Does anyone know the difference between thses two alcohols and if one is better than the other for my purposes? I have been using 91% isopropyl for years to clean up epoxy before it sets on my radio control airplanes, but I am not sure if it is appropriate for my C6.
Thanks for your help.
I just did a little searching around and here is one response on the difference:
"RUBBING ALCOHOL is intended for use on the skin only. It was made in the old days for rubbing on the skin, on a inflammed Joint. It was also Rubbed on skin to reduce fevers. It is no longer used much for these purposes, the older folks may still use for Joint pain. Rubbing Alcohol is now used in small amounts for Cleansing the skin before injections. DO NOT DRINK! RUBBING ALCOHOL IS POISONOUS. CONTAINS CHEMICALS 70% ISO-PROPYL ALCOHOL AND 30% WATER.
DENATURED ALCOHOL IS ETHANOL MAY CONTAIN THESE CHEMICALS: METHANOL AND OR ISOPROPANOL AND GASOLINE. DENATURED ALCOHOL IS POISONOUS! DO NOT DRINK. DENATURED ALCOHOL IS RECOMMENDED IN THE REMOVAL OF MILDEW FROM NATURAL LEATHER JACKETS, PURSES, PANTS. (DO NOT USE ON SUEDE)"
Ideally I use a 50/50 mix of isopropyl alcohol and water. I recommend just using rubbing alcohol to remove the old sealant and wax. Rubbing alcohol usually has a 70/30 mix so I use 2:1 ratio of the isopropyl alcohol and one part water, since it already has 30% water. If you have 91% then I would just mix it with a little under 50% water in a separate container. You can also use a product like the Menzerna Top Inspection
which is pre-mixed for you and is highly effective. Just use a nice microfiber towel with it and you are all set.
Another option is to wash the paint with a shampoo like the Chemical Guys Citrus Wash and Clear
. It safely removes old wax and sealant during the wash process and it won't dry out vinyl and plastic trim.
Let me know if you have any other questions.
Greg @ Detailed Image