STRATFORD-UPON-AVON, England (Feb. 21)—United Polymers Ltd., part of Grove Industries, has acquired VIP-Heinke, the United Kingdom´s largest manufacturer of seals and gaskets for water and gas pressure pipes and a major supplier of non-pressure pipe seals. The companies did not disclose terms of the deal. Huntingdon, England-based VIP-Heinke's injection molding, compression molding and extrusion facilities are backed by in-house compound formulation technologies. The firm's capabilities and market sectors appear to be a neat fit for United Polymers' growing molding, die-cutting and compounding network. United Polymers has plants in Maerdy, South Wales; Corsham, England; Huddersfield, England; and Hranice, Czech Republic.