Royal Adhesives and Sealants LLC Announces SAE Qualified Aircraft Sealant That Is 35% Lighter

WS 8031 Qualified to SAE Industry Specification AMS3281D Type 3

SOUTH BEND, IN--(Marketwire - September 21, 2009) - Royal Adhesives and Sealants LLC announced today that its WS 8031 Light Weight manganese dioxide cured polysulfide aircraft sealant is the first sealant to be fully qualified to SAE International's aerospace material AMS3281D type 3 Class B aircraft fuel tank sealant specification.

WS 8031 aircraft sealant is manufactured at Royal Adhesives and Sealants Wilmington, CA facility, which is certified to the AS 9100, ISO 9001/2000 and AS7200/1 NADCAP quality systems requirements.

Ted Clark, Chief Executive Officer of Royal, commented: "WS 8031 is a low density, sealant with a specific gravity of less than 1.05 or a 35% weight savings over traditional aerospace sealants. The weight savings we have achieved with WS 8031 are significant and will allow aircraft designers to meet important weight reduction targets without sacrificing sealant performance. As an example a fighter jet that uses between 25 to 30 gallons of sealant for fuel tank and pressure sealing in production would achieve a weight savings of between 100 to 150lbs."

AMS3281D qualified aircraft sealants are used on the most advanced military aircraft and in addition to saving weight have 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.

Jeff Swindells, Product Manager Aerospace Sealants, also commented: "Royal continues to lead the market in the development of advanced light weight aircraft sealants and is the first company to be fully qualified to all three lightweight types called out in the AMS3281D specification with WS 8030 qualified to Type 1 and WS 8032 qualified to Type 2 and now WS 8031 to Type 3."

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 are 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.

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