Welcome to ISD
Colonial Seal Company
Colonial Seal Company is a New Jersey-based sealing solutions and seal distributor and manufacturer founded in 1994 by Stephen Maloney, a Vietnam-Era Veteran. Originally established as a distributor of oil seals, o-rings and hydraulic seals, Colonial Seal Company has focused on the needs of original equipment manufacturers (OEM) in a variety of industries. The company has been in business since 1994. Industries include Automotive, Pulp, Paper, Gearbox, Pharmaceuticals, Food/Beverage, Steel, Power Transmission, Off Road/Trailer, Mining, and Agriculture. We supply Rotary Shaft Seals, Hydraulic Seals/Packing, O-Rings, Mechanical Seal, Custom Metal Case Seals, Custom Lathe Cut Seals, and others in a variety of materials (NBR, HNBR, FKM, several types of PTFE, Silicone, Polyurethane, POM, etc.). Our specialty is custom seals made per customers’ requirements. We are able to reverse engineer seals and/or provide replacements for obsolete seals. We joined ISD to develop relationships with other industry professionals; learn about new products; and have our employees participate in training opportunities.