Our shaved bats for sale or bat shaving service come with a special formulated polymer coating. It would be best described as a rubbery substance that bonds to the barrel for a good seal. After bat rolling and shaving we can completely coat the inner barrel with a specially formulated flexible coating. Our Flexible Polymer Barrel Coating is sprayed on to increase durability and decrease composite break down. Our coating transfuses into the composite and secures the newly shaved top layer of composite with a polymer based coating. This coating gives strength to the inner walls to reduce the effects of composite break down, therefore increasing the life of the bat. The annoying rattles from composite will no longer be an issue.