Well Klear has changed its name but is still available and, completely unusefully, I can't remember what it's now called. But, I bought the equivalent from ebay in a 5 liter container a couple of years ago, Here -
It looks the same, smells the same, sticks to your hands the same and, most importantly, does exactly the same job. I gave my boat a wee single refresher coat last week because it's been two years since it was last done. Been doing it now for years and it doesn't appear to cause any problem to the fabric. It's very shiny though!