Sto Corp., a world leader in cladding, coating and restoration systems, has appointed David Boivin as CEO. Boivin was previously vice president of sales and marketing for the insulation group at CertainTeed Corp. of Valley Forge, Pa. Prior to joining CertainTeed in 1991, Boivin managed manufacturing operations in the appliance, rechargeable battery and ceramics industries over a span of six years. He began his career with General Electric, and was financial analyst for several divisions of GE Lighting from 1978 to 1986. Boivin is succeeding the retiring Macon Lowe, who has been at the helm since 1993.