“I accidentally dropped some fuel on my SKB case. Will it eventually eat through the case?”
Musical instrument cases operate on human power; no fuel is needed. We’ll resist the temptation to ask what you were doing. SKB Cases are manufactured of ultra-high molecular weight Polyethylene. This unique material was originally specified by the military for use in weapons cases, due to the fact that it is impervious to solvents, fuels, or toxic liquids. It is essentially indestructible, molds easily under heat, and forms an “impenetrable shield,” thereby protecting whatever it is contains. Those are SKB’s words. I imagine sulfuric acid or a forklift could “penetrate” one rather easily, but you get the idea. Your case should be fine.