GE Plastics to Test ExpressTool's New Mold Making Technology; Dramatic Reduction in Time, Cost.

WARWICK, R.I.--(BUSINESS WIRE)--Aug. 11, 1998--Infinite Group, Inc., (NASDAQ:IMCI) announced today that GE Plastics and ExpressTool of Warwick, RI, a wholly owned subsidiary of Infinite Group, entered into an exclusive agreement to test ExpressTool's new proprietary mold making technology that will substantially improve the productivity of plastic injection molding tools.

The new technology, introduced in the fall of 1997, can reduce the molding cycle time of products by 20-30 percent by allowing the use of high productivity production inserts for molds. A key to the reduction in cycle time is the use of conformal cooling, which removes heat from molds more efficiently and uniformly than conventional methods. The patent-pending technology utilizes a unique composite fabrication method, which reduces part cycles and minimizes distortion, thus reducing costs and improving accuracy.

According to Tom O'Connor, program leader for GE Plastics, "Joint testing with ExpressTool will benefit allinvolved. At our Polymer Processing Development Center, (PPDC), we will be able to characterize tool life. We will also measure cycle time to help customers understand how to get their product to market more quickly and more cost effectively, which will benefit not only the OEM but the supplier as well."

O'Connor added that, "Our main goal for this project is to validate and accelerate the commercialization of the ExpressTool process. We believe this technology has great potential and that, by exposing the tool to a wide range of tests, we will have better insight into its appropriate applications. It is our intention to share this knowledge on this capability with current and future GE customers."

Tom McDonald, President of ExpressTool, said, "This is an exciting initiative for us. By working closely with GE Plastics, with their knowledge of engineering thermoplastics, we will be able to establish lifetime data for characteristics including long-term durability of the tool, temperature and injection pressure limits. GE's testing will validate what we have believed all along, that ExpressTool inserts will revolutionize molding technology. Also, GE's customer base will be able to utilize this to their competitive advantage."

GE Plastics, headquartered in Pittsfield, MA, is a leading global manufacturer of high performance engineering thermoplastics. With manufacturing and marketing locations around the world, GE Plastics supplies a spectrum of high performance resins, as well as advanced copolymers, alloys, and composites for use in major markets such as automotive, computers, telecommunications, building and construction, lawn and garden, medical appliances and housewares.

ExpressTool is a wholly owned subsidiary of Infinite Group, Inc., an industry leader in the areas of laser material processing, advanced manufacturing methods, high productivity production tooling and laser-applications technology. Infinite Group holds a thirty-four percent stake of Spectra Science Corp, and is its largest shareholder.

This release contains "forward looking statements" based on current expectations but involving known and unknown risks and uncertainties. Actual results or achievements may be materially different from those expressed or implied. The Company's plans and objectives are based on assumptions involving judgements with respect to future economic, competitive and market conditions and future business decisions, all of these are difficult or impossible to predict accurately and many are beyond the control of the Company, therefore, there can be no assurance that the forward-looking statements will prove to be accurate.

    CONTACT: ExpressTool                    GE Plastics
              Tom McDonald                   Pam Wickham
              401-737-7900                   413-448-7698
              [e-mail]      [e-mail]