Applying the Backing tape: The following illustration is a typical profile, showing the correct application off the Argweld® Weld Backing Tape . Adhesive Bonding Strip (An acrylic adhesive, covered with an easy peel silicon treated paper) Glass Fibre Weave (The thickness of fiberglass will vary depending upon product type used. Filament diameter size will typically be between 6-25 microns) WELD BACKING TAPE Metallic Aluminium Tape (A robust 3" wide or 75mm Aluminium tape offers both support and a non porous seal) Additional / Supporting Literature: As with all of our other products we also have for the Argweld® Weld Backing Tape: • A Material Safety Data Sheet • An Application Guide • Training Poster • User List • Technical Papers (as published in The Fabricator and Welding & Cutting) To reduce welding costs when joining linear or circumferential seams, a backing tape can be applied to the rear of the weld seam allowing the molten metal to be cast onto the glass fibre matting leaving a smooth, coke free weld root. Huntingdon Fusion Techniques Limited, manufactures three grades of backing tape, suitable for different weld current levels. All are available at request. Sample packs are available by contact Huntingdon Fusion Techniques Limited with a description of your application, containing a small trial strip of each grade of Backing Tape. Huntingdon Fusion Techniques Limited, Stukeley Meadow, Burry Port, Carms SA16 0BU United Kingdom Telephone: +44 (0) 1554 836 836 Facsimile: +44 (0) 1554 836 837 Email: [email protected] http://www.huntingdonfusion.com Copyright © 2000-2009 All rights reserved. This publication may not be reproduced by any means without the written permission of Huntingdon Fusion Techniques Picture Above: A close up shot of the 25mm wide glass fibre matting affixed to the 75mm wide adhesive aluminium tape, applied so that no air pockets are trapped underneath the foil. A light duty grade for welding up to 80 amps, a medium current version for welding up to 160 amperes and a heavy duty grade for welding up to 240 amperes. Key advantages of Argweld® Weld Backing Tape: • Can be used with any arc welding process. • Weld is cast flat onto the tape leaving a smooth, coke free surface. • Welding can be carried out by operatives with lower skill levels. • The amount of weld root grinding and cleaning is minimised, giving a large financial saving. • Suitable for automatic and manual welding techniques. • Allows faster welding thus saving more time and money. Other advantages will be highlighted later in the leaflet. Picture Top Of Page: The three grades of Argweld® Weld Backing Tape, along with the plain adhesive aluminium tape.

ABT0004 - Light duty tape. Available in pre-cut 25 meter lengths, rolled up and delivered in multi lingual labelled boxes, complete with user instructions. The light duty backing tape with its weave thickness of 1mm will aid in the production of a flat weld underbead with minimum oxidation and porosity. The use of Argweld® Backing Tape will also eliminate weld coking, drop through and icicles, allowing for faster welding, welding can be carried out by lower skilled labour and result in a reduction in post production cleaning and pickling. Close-up of the Argweld® Light Duty Backing Tape after...