There are many out there for a Diy cquartz is the way to go, it claims to harden your paint and help prevent minor scratches. Take that for what it’s worth I would say at best very very light protection and anything diy won’t be the same as a true pro dealer can get. As the post said above you need to do a full prep work. They make a speical soap to use when washing clay, polish etc. anything not corrected or left pre coat will not only still be there but will be “covered” also not sure your area most coats don’t flash to well in the cold. I was going to do one myslef just going to wait till spring. For now I’ll use a sealant and wax and let it Rock for now