"Spider Tack" became a popular fad, but pitchers have often used a combination of their own sweat and rosin to create stickiness. Strahm added that "some of that stuff was a bit much," but added ...

Before June 3, 2021, baseballs spun more. That's the day when Major League Baseball (MLB) said it would begin cleaning up a sticky situation: unapproved substances, like pine resin, smeared on ...

Dave Phillips’ journey from a San Francisco screenprinter to the exclusive producer of rosin bags for Major League Baseball started with a love of pelicans. It was 2013 and Phillips was printing ...

But no one had done a scientific study on the differences in the rosin bags used by pitchers in the two leagues until now, according to Takeshi Yamaguchi, a tribology professor at Tohoku University.

Many pitchers used the combination of sunscreen and rosin to improve their feel and control, but others utilized much heavier, sticker materials like Spider Tack to boost their spin rates well ...

The type of sticky stuff used varied from pitcher to pitcher — some used a tacky mixture of two legal substances, sunscreen and rosin, while others used a Pelican Grip substance so strong it ...

The researchers had six pitchers test baseballs with one of four treatments applied to their palms and fingertips - no additional coating; water coating; rosin powder coating; and pine resin ...