Contact:
Mary Woods, Public Relations Mgr.
3D Systems
26081 Avenue Hall
Valencia, CA 91355
ph: (661) 295-5600 ext. 2508
fx: (661) 295-3404
email: woodsm@3dsystems.com

VALENCIA, Calif., June 30, 1998 - 3D Systems Corporation (Nasdaq-NMS:TDSC) today announced several new materials that greatly expand the range of applications for its solid imaging products - the SLA Series rapid prototyping systems and the Actua 2100 3D printer.

The new materials include SLA resins designed with specific capabilities and intended for applications demanding high durability, accuracy, productivity and humidity resistance. They join the recently introduced Cibatool SL 5210, a specialty resin that resists high temperatures, and bring the number of resins offered for the SLA Series to 11.

The new Actua materials are offered in black and gray colors, and provide improved strength and flexibility. "The new materials show our ongoing commitment to expanding the range of applications for our customers," said Richard D. Balanson, 3D Systems' president. "We now offer the widest spectrum of solutions in a customer's product development cycle, from concept to finished product - and we'll continue to develop new materials for both SLA and Actua products."

SLA rapid prototyping systems employ 3D Systems' patented stereolithography (SL) technology to fabricate solid objects from CAD/CAM input, while the Actua 2100 lets designers produce three-dimensional models - as easily as a plot or a print - for design verification and communication. The Actua and SLA systems help manufacturers bring products to market significantly faster and more economically, and are used worldwide by such companies as Eastman Kodak, Ford, General Electric, General Motors, Hewlett-Packard, IBM, Lockheed Martin, Mercedes Benz, Motorola, Nissan and Rubbermaid.

New Durable Resin
3D Systems' new Cibatool SL 5520 resin, for use in the high-end SLA 3500 and SLA 5000 systems, is the company's first resin designed for snap-fit applications, providing immediate form, fit and functional testing of new products in development. The new resin can make prototype parts and assemblies with robustness approaching commercial engineering plastics. It is low in viscosity, resists humidity and impact, and provides easy post-processing qualities especially important in the automotive, electronics, computer and other industries where many components are made of strong, sturdy ABS plastic. Unlike typical ABS engineering materials, SL 5520 is optically clear - a key factor when producing intricate components and assemblies where visual confirmation of proper connections is required. The new SL 5520 resin can withstand the rigors of real-world use, yet hold the fine detail, surface finish and many of the physical characteristics of an injection-molded part.

New High-Speed, High-Accuracy Resin
3D Systems today also announced Cibatool SL 5220, a new high-productivity resin for use in its SLA 190 and SLA 250 systems. SL 5220 is designed to surpass, in productivity, any commercially available material for the SLA 190/250, due to the new resin's fast photospeed and zero predip-delay requirement. Low viscosity makes SL 5220 especially suitable for applications where drainage of liquid resin is a concern. It provides easy post-processing and resists moisture, which allows parts made from it to undergo limited underwater testing.

In addition, Cibatool SL 5510, introduced earlier this year for use in SLA 350 and SLA 3500 rapid prototyping systems, is now available for use in SLA 5000 systems, making it the company's first cross-platform resin. With performance characteristics that include exceptional humidity resistance, low viscosity and high accuracy, SL 5510 is ideal for master patterns and investment casting of metal parts. Parts made from SL 5510 retain high strength and accuracy when exposed to high levels of humidity and, due to this superior moisture resistance, are suitable for water immersion applications.