Dear Harry, I did understand that you simply coat shells with Armor All. What I believed that if more collectors start to use it eventually someone will get the idea of soaking the shell in it. Will spraying a lilac Oliva sayana with Armor All keep the shell from fading? I think it would be more effective to soak such a shell so the substance can penetrate. This is where I started to run into problems. Andrew Dickson [log in to unmask]