I'll put in my vote for SilClear. Less expensive than the Walker SST with very good results on power cords, IC's, speaker cables etc. I even have a friend who is putting it on his lightbulbs! Listener57, I don't have any experience with the Walker SST product but I did find the special applicators at my local drugstore, in my case Walgreen's. Look in the make-up section. They are for applying eye makeup. They work well with SilClear also.
Cheers, Greg
Cheers, Greg