For more on Spider Tack here’s a passage from this great article in The Athletic, Spider Tack is the stickiest stuff in baseball’s foreign-substance controversy. Its inventor had no idea: “Get Spider Tack out of the game and I don’t care about anything else,” an MLB pitcher said, singling out a substance so spectacularly tacky that it suddenly has expanded beyond its initial market (strongmen lifting Atlas Stones) to a much larger one (pitchers hurling five-ounce baseballs). .......... Spider Tack represents the logical extreme in an arms race for better spin and nastier movement that has gone, to this point, unchecked by the league. Until a crackdown comes, Spider Tack is still one smear on the artist’s palette that is a pitcher’s glove. Pine tar, a sunscreen-and-rosin mixture and bubble-gum spit are more commonly used, another MLB pitcher said, but Spider Tack is easy to hide and wickedly effective. It’s almost too sticky — it takes WD-40 or baby oil to get it off your fingers. “Spider Tack is there to have on your glove for when you need that slider or heater to really rip,” the pitcher said.