Its wear there is no rubber gromet for the stem and bowl, with a glass-on-glass setup the bowl and stem are 'frosted' and fit together withour a rubber seal

You might use a rubber spatula to blend or mix food in a bowl. You could also use one to scrape a bowl, but a rubber or silicone bowl scraper would also be used to scrape food from a bowl.

Try putting the bowl on a rubber mat. There are also 'non-skid' pet bowls available. They have rubber around the bottom rim.

Akron, Ohio is the city that produces the most rubber in the United States. Their local college even named their football stadium, The Rubber Bowl.

the rubber tank seal (bowl to tank) didnt seat correctly