MINNEAPOLIS, Dec 2, 2008 (GlobeNewswire via COMTEX News Network) -- Northern Technologies International Corporation (Nasdaq:NTIC) has launched a new generation of Zerust Anti-Tarnish protective packaging. The transparent plastic material is impregnated with patented chemical formulations which absorb corrosive gases in the surrounding atmosphere and thereby protects silver, copper and electronic components from damage caused by oxidation, tarnish and corrosion. Target applications for the Zerust Anti-Tarnish products include the protection of the non-ferrous metals in silver jewelry, silverware, copper, musical instrument strings and electronic components, circuit boards and circuit board assemblies.

"NTIC is very pleased to strengthen our global Zerust brand of corrosion protection products with this new market expanding offering," said Patrick Lynch, CEO of NTIC.

Zerust Anti-Tarnish products provide cost-effective corrosion protection and a 5-year protection life, while being fully compatible with automated packaging systems. Zerust Anti-Tarnish products are also environmentally responsible, as they are fully recyclable and do not contain any acids or other harmful materials. The new Zerust ICT(r)520-CB1 Anti-Tarnish product line is globally available and can be fully customized into bags, gusset bags and sheeting.

About Zerust

Zerust manufactures and markets corrosion inhibiting technologies that provide customers with advanced corrosion solutions for rust issues across their production facilities and supply chains. The technology uses proprietary and non-toxic chemical systems to create invisible molecular corrosion shields on metal surfaces. Zerust teams support clients globally in a broad range of industries including automotive, electrical, electronic, medical, machine fabrications, steel production, military and marine. Zerust products and services allow customers to achieve substantial cost savings as well as reduce negative environmental impact caused by traditional corrosion prevention methods. For more information, visit www.zerust.com

About Northern Technologies International Corporation

Northern Technologies International Corporation (Nasdaq:NTIC) focuses on developing, marketing and selling proprietary environmentally beneficial material science-based products and technical services via a network of independent distributors, manufacturers' representatives and joint ventures in over 50 countries. NTIC's business units include Zerust corrosion protection products and custom packaging systems, Zerust Oil & Gas advanced corrosion control technologies and services for the petrochemical industry, Natur-Tec biobased and biodegradable polymers and Polymer Energy plastic waste to energy conversion systems. For more information, visit www.ntic.com

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SOURCE: Northern Technologies International Corporation

Northern Technologies International Corporation
          Business Development
          Jim Zerban
            763.225.6616
            jzerban@ntic.com
          Marketing
          Vanessa Gilbert
            763.225.6618
            vgilbert@ntic.com

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