Do Not use Armor All, it has silicone and will cause slippage.
Remove the belt, use an alcohol wipe and gently clean it. After it dries put a small amount of talcum powder in a baggie with the belt. Toss it gently to coat the belt, remove and shake off excess. Clean the outside edge of the platter where the belt rides with an appropriate cleaner and dry. Install the belt. If the belt is stretched, drop it in boiling water for a couple seconds before the talcum treatment.
Remove the belt, use an alcohol wipe and gently clean it. After it dries put a small amount of talcum powder in a baggie with the belt. Toss it gently to coat the belt, remove and shake off excess. Clean the outside edge of the platter where the belt rides with an appropriate cleaner and dry. Install the belt. If the belt is stretched, drop it in boiling water for a couple seconds before the talcum treatment.