

Oil seals are generally constructed from materials that can withstand the specific chemical properties of the lubricant they are sealing. Common materials include rubber, silicone, and various elastomers. The design of an oil seal often incorporates a lip that rolls against a shaft or surface, creating a dynamic seal that can accommodate movement while maintaining its sealing capabilities.
1. Extended Shelf Life One of the most significant advantages of vacuum pack pouches is their ability to prolong the freshness of food items. By removing air, the growth of aerobic bacteria and mold is inhibited, allowing perishable goods to stay fresh for days, weeks, or even months longer than traditionally packaged products.