"Sticky residue" refers to a thin, glue-like substance that remains on a surface even after you try to remove it. It is difficult to get rid of and can make the surface feel tacky or slimy. Full definition
It's difficult to remove when you actually do want to use your webcam, and it leaves sticky residue. (cultofmac.com)
Thieves Essential Oil is used for everything from cleaning your carpet to boosting the immune system, from getting rid of sticky residue on surfaces to giving your dishwasher a helping hand! (midwestmodernmomma.com)