Conseal is a sealant used to help seal the joint to joint connection of precast barrels in manhole structures and vaults. The Conseal used by Romtec Utilities is a butyl rubber sealant. This sealant is water tight and very resistant to shrinking, hardening, or oxidizing. Conseal is applied around the perimeter of the top joint’s lower lip on the lower barrel. A seal is formed when an upper barrel is stacked on top of a lower barrel. Conseal sealant is used in conjunction with a barrel gasket and tape coat to seal joints in concrete manholes supplied by Romtec Utilities.