Knapp's Blue Series pigs use the same basic K-Lite foam system as the well-known Red Series. With Knapp's unique ability to blend our own foam systems, we alter the formulation of the urethane foam to make it softer, lighter (5 to 6 lb/ft3) and more flexible. The coating used for the Blue Series is also softer and more flexible than…
The Crimson Series pigs use Knapp's K-Duro, our toughest and longest-wearing foam. K-Duro is a heavy-density (9 to 10 lb/ft3) foam ideal for pigs that have to travel long distances or perform hard scraping duty. The Crimson Series is available with the same coating patterns and scraper elements as the Red Series.
The Maximum Cleaning Series pigs use both Knapp's K-Lite and K-Duro urethane foam bodies. Depending upon the particular application, straps of urethane scraper blades, steel wire brushes, silicone carbide chips, or hardened steel studs are applied to the pig bodies to produce the ultimate in scraping and flexibility.
