I have a Pulsar fibreglass dome which I purchased 15 years ago. The surface has lost colour and, even though I polish and buff it every summer, a few months later it looks a bit shabby again. I saw a post on Stargazers Lounge in which somebody had used the colour restorer Polytrol on their Pulsar dome. I have now applied a coat and I am pretty pleased with the result. I have posted to my BAA Members Page.