Here's what I got from Google:
>>A chemical called cranolin (sp?) was mentioned as sold by MCM. I was told that Ten-Tec repair shop uses two cranolin products to cleanup corrosion on the wafer switches. The first is called K5 that dissolves the corrosion while V5 coats the part to protect it against future oxidation. MCM doesn't list it, nor does (almost) anyone on the web sell it. I've seen another reference to Ten-Tec's repair shop and in that post they are said to recommend an entirely different set of products (Collins Collector's mailing list), also hard to find. There aren't many references on the web to cranolin, but I did find an on-line health supplement store selling it for about $50. No, it can't be the same thing. Maybe an urban legend?