6-5-431

3 Aluminum Foil Tape 431 • 439L (Linered) Technical Data Product Description 3M™ Aluminum Foil Tape 431 and 439L is a 2-mil nominal dead soft aluminum foil with transparent acrylic adhesive for many permanent sealing, holding, splicing or masking applications requiring the protection offered by a foil backing. IMPORTANT: 3M™ Aluminum Foil Tape 431 and 439L are not intended for medical usage. Neither 3M nor the Food and Drug Administration have evaluated or reviewed this tape for medical application. User assumes all risk and liability whatsover in connection with usage of product in a medical application. Product Construction Typical Physical Properties Backing Adhesive Color Liner (3M tape 439L) Standard Roll Length Aluminum foil Acrylic Shiny silver Tan kraft paper with silicone release 60 yds. (55 m) Note: The following technical information and data should be considered representative or typical only and should not be used for specification purposes. ASTM Test Method Adhesion to Steel: 41 oz./in. width (45 N/100 mm) Tensile Strength at Break: 3M tape 431 19 lbs./in. width (338 N/100 mm) 3M tape 439L 18 lbs./in. width (315 N/100 mm) D-3759 D-3759 Elongation at Break: 3M tape 431 5% 3M tape 439L 3% D-3759 Backing Thickness: 1.9 mils (0.05 mm) D-3652 3.1 mils (0.08 mm) D-3652 5.6 mils (0.14 mm) D-3652 Water Vapor Transmission Rate: 0.1 gms H2O/100 sq. in./24 hrs. (1.55 g/m2/24 hrs.) D-3833 Temperature Use Range: -65° to 300°F (-54° to 149°C) Weight: 0.0096 lbs./yd./in. width (.0049 kg/m/24 mm) Total Tape Thickness: Liner Thickness: Features D-3330 3M tape 439L • Flame resistant. Meets U.L. 723, Class “L” low flammability rating (File R 7311). • Meets requirements of F.A.R. 25.853(a). • Foil backing provides an excellent reflective surface for both heat and light. • Good aging performance both indoors and outdoors. • Low moisture vapor transmission rate offers excellent sealing and patching performance. • Best results attained when applied to clean dry surface above 32°F (0°C). 3M™ Aluminum Foil Tape 431 • 439L (Linered) Application Ideas • Seal and patch tears in truck trailers, as well as other outdoor equipment. • Reflect heat away from sensitive areas. • Thermal heat conduction. • General purpose holding, patching, sealing applications – indoors or out. • Splicing of thin gauge foils. • Good maskant in electroplating of aluminum because it will not contaminate the bath. • Decorative. Storage Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% R.H. in the original carton. Shelf Life To obtain best performance, use this product within 24 months from date of manufacture. Product Use All statements, technical information and recommendations contained in this document are based upon tests or experience that 3M believes are reliable. However, many factors beyond 3M’s control can affect the use and performance of a 3M product in a particular application, including the conditions under which the product is used and the time and environmental conditions in which the product is expected to perform. Since these factors are uniquely within the user’s knowledge and control, it is essential that the user evaluate the 3M product to determine whether it is fit for a particular purpose and suitable for the user’s method of application. Warranty and Limited Remedy Unless stated otherwise in 3M’s product literature, packaging inserts or product packaging for individual products, 3M warrants that each 3M product meets the applicable specifications at the time 3M ships the product. Individual products may have additional or different warranties as stated on product literature, package inserts or product packages. 3M MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OF TRADE. User is responsible for determining whether the 3M product is fit for a particular purpose and suitable for user’s application. If the 3M product is defective within the warranty period, your exclusive remedy and 3M’s and seller’s sole obligation will be, at 3M’s option, to replace the product or refund the purchase price. Limitation of Liability Except where prohibited by law, 3M and seller will not be liable for any loss or damage arising from the 3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability. ISO 9001: 2000 This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001: 2000 standards. 3 Industrial Business Industrial Adhesives and Tapes Division 3M Center, Building 21-1W-10, 900 Bush Avenue St. Paul, MN 55144-1000 800-362-3550 • 877-369-2923 (fax) www.3M.com/industrial Recycled Paper 40% pre-consumer 10% post-consumer Printed in U.S.A. ©3M 70-0709-5013-7 (2001 / 7/05)