Dodo Juice Supernatural Glass Sealant Kit

Best buy

Supernatural is hard work to apply and you don’t get very much for your cash, but on glass it really worked for us. Not only was the finish ultra-durable, but it was also easily the best at shifting water. Plus, it showed no sign of flagging even after 10 weeks. And as you don’t need to use very much, this tiny pack could provide years of protection.