positive scraping and sealing qualities are required but where no aggressive elements such as
wire scraping brushes or abrasive coatings can be tolerated. The Ultra-Seal Lite is a one-piece
urethane foam pig that is reinf
orced with integral urethane elastomer end discs and center post.
The end discs are typically 1% - to - 3% larger than the pipe’s inside diameter and are available
in hardnesses ranging from 50 Shore A to 95 Shore A durometer. Depending upon application
3 3; requirements, the foam body is available in densities from 2 lb/ft to 10 lb/ft ; the foam body
is larger than the elastomer end discs to increase the sealing ability of the pig.