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"A science fiction story is a story built around human beings, with a human problem and a human solution, which would not have happened at all without its scientific content."
- Theodore Sturgeon

Gravity neutralizing paint  
  Paint or coating that neutralized the effects of gravity on whatever it was painted on.  

The bar itself was an incredibly ancient sheet of transparent plastic, stained and chipped and yellow with age. Its n-grav coat had faded from one end; bricks now propped it up. The drink mixer had long since fallen apart. Only wine and beer were served. No living man knew how to mix the simplest drink.
From Last of the Masters, by Philip K. Dick.
Published by Orbit Science Fiction in 1954
Additional resources -

Compare to the gravity neutralizing disks from the 1937 classic story Fessenden's Worlds, by Edmond Hamilton and the gravity web from Whipping Star, the 1969 novel by Frank Herbert.

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