DEERFIELD BEACH, FL -- Mapei has recently acquired Hydrochem Systems, Inc. of Jacksonville, FL. The acquisition has allowed Mapei to expand into the pool and deck coating business with Renaissance by Everbrite, a high-performance exposed aggregate pool finish unique to Hydrochem Systems. Jerry Rademan, previously the president of Hydrochem Systems, has been named the general manager of the new division. Hydrochem Systems specializes in decorative exposed aggregate pool finishes, waterproofing, decorative textured concrete covering and maintenance care products. With the bulk of the business currently produced by Mapei for Hydrochem, the acquisition would bring international production and distribution to the table.