User manual 3M VHB TAPE COLD TEMP PERFORMANCE TECH BULLETIN

[. . . ] 3 VHBTM Tape Cold Temperature Performance Technical Bulletin January, 2002 TM TM Cold Temperature Performance of 3M VHB Tapes This bulletin summarizes the typical low temperature performance of the 3MTM VHBTM family of tapes. The performance of both VHB Foam Tapes and Adhesive Transfer Tapes is profiled over a broad temperature range. [. . . ] This type of shocky behavior is demonstrated by the lower performance of VHB Tape 9473 as noted at -65°F (-54°C) in Figure 1. The potential for shock failure is dependent on the temperature, the frequency of the impact stress and the material to which the adhesive is bonded. With the number of variables involved, the potential for cold shock cannot be accurately described or tested on laboratory sized specimens. Although it is not generally seen to be a limiting factor in many actual applications, small laboratory samples can be made to exhibit brittle behavior at extremely cold temperatures. In full scale applications, the frequency distribution and energy concentration would generally be expected to be within the limits of VHB tape capability. For this reason, it is suggested that small scale tests not be solely relied upon to draw conclusions about this performance characteristic. While we do not see low temperatures to be a limiting factor in many actual applications, we suggest that a thorough evaluation be conducted by the user at actual use conditions on applications where high impact stress is expected at low temperatures. In one example of a cold temperature application, exterior stainless steel anti-chaffing strips on a commercial aircraft are bonded to the wing flaps with VHB Tape 9473 and are routinely subjected to temperatures from -65°F (-54°C) to more than 150°F (66°C) several times each day, as well as the typical vibration and environment which the outside of a passenger jet encounters. This application has been in use since 1984 and continues to be utilized on new models of the aircraft. While 3M does not recommend use of VHB tapes in exceedingly cold temperatures, one can see by the above application that with the user's proper evaluation and design even these harsh environments can be tolerated under certain circumstances as determined to the user's satisfaction. Technical Bulletin 3M VHB Tape Cold Temperature Performance TM TM T-Peel vs. Temperature Tape F-9473PC Adhesion to Aluminum 100 Dynamic Normal Tensile vs. / inch width) BREAKAWAY Tensile Adhesion (PSI) 80 PEEL 400 300 200 100 0 -20 0 50 70 120 170 30 Temperature °F Figure 2 60 40 20 0 -65 -20 0 20 Temperature °F Figure 1 70 For Additional Information To request additional product information or to arrange for sales assistance, call toll free 1-800-362-3550 or visit www. 3M. com/adhesives. Address correspondence to: 3M Engineered Adhesives Division, 3M Center, Building 220-7E-01, St. In Mexico, phone: 52-70-04-00. Important Notice User is responsible for determining whether the 3M product is fit for a particular purpose and suitable for user's method of application. [. . . ] 3M shall not otherwise be liable for loss or damages, whether direct, indirect, special, incidental, or consequential, regardless of the legal theory asserted, including negligence, warranty, or strict liability. ISO 9002 This Engineered Adhesives Division product was manufactured under a 3M quality system registered to ISO 9002 standards. 3 Engineered Adhesives Division 3M Center, Building 220-7E-01 St. Paul, MN 55144-1000 Recycled Paper 40% pre-consumer 10% post-consumer Printed in U. S. A. [. . . ]