Royal DSM N.V. plans to invest in 25% capacity expansion of its Dyneema UD (unidirectional bullet-resistant sheeting) at its manufacturing facility located in Greenville, N.C. Growing demand in the US market for personal and vehicle security products designed to provide protection against terrorism, has been the principle force governing the healthy growth prospects of the material. The new capacity is expected to come on line in mid-2008. Dyneema UD is based on the company?s low-density Dyneema high-performance polyethylene (HPPE) fiber that is reportedly up to 15 times stronger than steel and up to 40% stronger than aramid fiber, by weight. The expansion follows the recent announcement that DSM will invest in a new technical service center at its Stanley, N.C., facility.