3M

ACS Industries, Inc.

Accessible Products Co.

AGM Industries, Inc.

Alpha Associates, Inc.

Armstrong World Industries

Auburn Mfg. Inc.

BGF Industries, Inc.

Carborundum Company

Ceel-Co

Childers Products Co.

Compac Corporation

Corrugated Metals, Inc.

Darco Southern, Inc.

Dow Plastics

Fibratec (Nutec Ind. Inc.)

Fibrex, Inc.

Foster Products Corp.

W. R. Grace & Company

Halstead Industrial Prod. Group

Houston Products Inc.

Howred Corporation

Ideal Tape Company

Innova Technologies, Inc.

Insta-Foam Products, Inc.

JPS Glass Fabrics

Johns Manville

Knauf Fiber Glass GmbH

Lamotite Div. of Rexham Corp.

Lion Oil Company

M.I.T. International, Inc.

Midwest Fasteners, Inc.

Nashua Tape

NDT Seals, Inc.

Owens Corning Fiberglass Corp.

P.K. Insulation Mfg. Co., Inc.

Pabco Metals Corporation

Pamrod Products Co.

Pittsburgh Corning Corp.

Premier Refractories & Chem. Inc.

Proto Corporation

RHH Foam Systems , Inc.

R.P.R. Products, Inc.

Rockwool Mfg. Co.

Shuford Mills

Sproule Manufacturing Co. Inc.

Thermal Ceramics Inc.

Thermon Manufacturing

Ventura Tape

Vimasco Corporation