Swellable seal stacks utilize elastomers that expand when exposed to hydrocarbons or water. Swelling occurs over hours to days providing time-delayed sealing. Swellable technology suits applications where immediate mechanical setting is impractical. Expansion ratios typically reach 200-400 percent volume increase. Swellable stacks complement or replace mechanical seals in specific app... https://globalsealstech.com/product/seal-stack/