Royal Adhesives and Sealants LLC Announces the Qualification of Hardman WS 8020 RC to Aerospace SAE Industry Specification AMS 8802

SOUTH BEND, IN--(Marketwire - April 22, 2009) - Royal Adhesives and Sealants LLC announced today that its Hardman® WS 8020 RC rapid cure manganese dioxide cured polysulfide aircraft sealant has been fully qualified to SAE International's aerospace material (AMS) 8802 Class B aircraft fuel tank sealant specification.

Hardman® aircraft sealants are manufactured at Royal Adhesives and Sealants' Wilmington, CA. facility, which has been certified to the AS 9100, ISO 9001/2000 and AS7200/1 NADCAP quality systems requirements and sold to Aerospace and Defense customers that require qualified sealants for demanding fuel tank and environmental sealing applications.

Ted Clark, Chief Executive Officer of Royal, commented: "This product qualification is a significant achievement for the company and underscores our efforts to listen to customers' requirements for improving quality and reducing costs through sealants that cure 50% more rapidly than the current generation sealants. This allows for faster aircraft assembly and reduces the time for repair and maintenance which will reduce our customers' overall costs."

AMS 8802 qualified aircraft sealants are used on virtually all U.S. manufactured military aircraft. In addition to its rapid cure WS 8020 RC has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry and offers excellent flexibility and bond strength to most metal substrates like aluminum, stainless steel, steel, advanced composites and many coatings under extremes of temperature, weathering and stress.

Hardman® WS 8020 RC is a rapid cure aircraft sealant qualified to Class B of the AMS 8802 sealant specifications. WS 8020 RC Class B-2 has a work life of 2 hours, but cures to 30 shore A in just 12 hours, a reduction of 12 hours over standard AMS 8802 qualified sealants which have a cure rate of 24 hours.

Jeff Swindells, Product Manager, Aerospace Sealants, also commented: "The qualification of Hardman® WS 8020 RC aircraft sealant to AMS 8802 will benefit all military aircraft manufacturers, as well as military maintenance operations; in addition WS 8020 RC is either qualified or under qualification at a number of business jet manufacturers in the U.S. and Europe."

Royal Adhesives and Sealants' Wilmington, CA. division is focused on serving both domestic and international clients in the aerospace and defense market and is a leading manufacturer and marketer of polysulfide sealants and electrical potting compounds for aerospace, defense and marine applications and specialty epoxy coatings for industrial maintenance applications.

High performance adhesives, sealants, encapsulants, potting compounds, and mirror mastics make up the Royal Adhesives & Sealants product mix. These high performance products are used in a variety of markets including aerospace and defense, assembly, automotive and recreational vehicle, electrical/electronic, filter, marine, and general industrial. The company also offers a broad spectrum of thermosetting epoxy and urethane, solvent-based, and water-based technologies to meet the most demanding adhesive and sealant applications.

About Royal Adhesives and Sealants LLC

Royal Adhesives and Sealants is a manufacturer and marketer of industrial adhesives and sealants, commercial roofing adhesives and mirror mastics. Royal manufactures both solvent-based and water-based adhesives and sealants that are packaged in a variety of packages including totes, drums, pails, cartridges and foil wrapped sausages.

For more information please visit www.royaladhesives.com

Contact Information: Enquiries Royal Ted Clark Chief Executive Officer 1 (626) 203 3745 Jeff Swindells Product Manager 1 (562) 810 4872