A phenomenon where the packing styrofoam surrounding a statue is responsible for removing small sections of paint where the foam grips the sculpt too loosely. During shipping, the statue will move back and forth in the foam, causing the foam to rub away layers of paint. A sheet of paper or soft foam packed inside is sometimes used to protect the statue from this.
This can also occur when the freshly painted statue is placed in foam before the paint is fully cured. The fumes from the paint degrade the foam and cause spots of rub. The most notable case of this is the Bowen Designs Thanos FS, which caused the destruction and refund of many pieces.