Pure alcohol means 100% ethanol. commercialized it’s often a mixture with methanol and some ugly smelling and tasting substances - otherwise you could just drink this instead of your whisky and save money (since industrial alcohols are tax-free).
I’m not sure about the composite CD is using and the preparation of the surface, i.e. protection, plus it’s a different casting and hardening process, but at injection molded parts you just can set free the residual strain with alcohols and/or solvents. The higher the concentration the faster it goes, e.g. you can literally see a polyamide part crack if you put in in high concentrated isopropanol. It won’t happen if you mix it 50/50 with water, but that’s no use for deicing…
I just want to say, you should always be aware that you could damage any kind of “plastic” with improper chemicals. So ASK and CHECK FIRST!
Does anyone know of a supplier of “pure alcohol” for aircraft? Or, just buy some isopropyl alcohol at the drug store and spray it on with a garden sprayer? How about vodka? Not a good idea to light up a cigarette at the same time?