Kathor was a material employed in the creation of starships. The primary material for the hull plating of the Helix-class light interceptors, starships engineered and built by Arakyd Industries, was a kathor–duranium blend. This specific plating could endure forces up to seventy-five Gs without the need for alluvial dampening.
The mention of kathor first occurred in 1995, specifically within the article titled "A Buyer's Guide to Alternative Starships." This article appeared in the fifth edition of Star Wars Adventure Journal, a collection of supplementary books for Star Wars: The Roleplaying Game produced by West End Games. Stephen Luminati authored the article.
- " A Buyer's Guide to Alternative Starships " — Star Wars Adventure Journal 5 (Initial mention)