B33-2-724

Technical Data Sheet BRADY B-­724 THERMAL TRANSFER PRINTABLE POLYIMIDE LABEL STOCK TDS No. B-­724 Effective Date: 02/27/2023 Description: GENERAL Print Technology: Thermal Transfer Material Type: Greenish/Amber Polyimide Finish: Matte Adhesive: Permanent Acrylic APPLICATIONS Printed circuit board and electronic component pre­-process labeling RECOMMENDED RIBBONS Brady Series R4300 REGULATORY APPROVALS For information on the Weee-RoHS compliance status for a Brady Product go to one of the following websites: In Canada: www.bradycanada.ca/weee-rohs In Europe: www.bradyeurope.com/rohs In Japan: www.brady.co.jp/products/labelsuse/rohs All other regions: www.bradyid.com/weee-rohs SPECIAL FEATURES B­-724 in combination with the Series R4300 ribbon passes the requirements of: MIL­-STD­-202G, Method 215K SAE AS81531 Marking of Electrical Insulating Material Preheat can be employed to further enhance print permanence in the case of extreme solvent and/or abrasion exposure. B-­724 is designed to withstand multiple cycles of harsh condition washes for printed circuit boards. Degradation of topcoat may be seen in certain aqueous chemistries. Details: PHYSICAL PROPERTIES Thickness TEST METHODS ASTM D1000 -­Substrate ­-Adhesive ­-Total (excluding liner) AVERAGE RESULTS 0.0028 inch (0.072 mm) 0.0016 inch (0.039 mm) 0.0044 inch (0.111 mm) Adhesion to: ­-Stainless Steel ASTM D1000 20 minute dwell 24 hour dwell 45 oz/inch (49 N/100 mm) 47 oz/inch (51 (N/100 mm) ­-Epoxy PC Board 20 minute dwell 24 hour dwell 33 oz/inch (36 N/100 mm) 48 oz/inch (53 N/100 mm) Tack ASTM D2979 Polyken™ Probe Tack (1 second dwell, 1 cm/sec separation) 66 oz (1883 grams) Drop Shear PSTC-­7 (except use ½” x 1” sample) Over 100 hours Dielectric Strength ASTM D1000 10000 volts Flammability ASTM D1000 Average Burn Time Less than 5 seconds Performance properties were tested on B-­724 printed with the Brady Series R4300 thermal transfer ribbon. Printed samples of B-­724 were laminated to aluminum and allowed to dwell 24 hours before exposure to the indicated environmental conditions. PERFORMANCE PROPERTIES Short Term High Service Temperature TEST METHODS TYPICAL RESULTS 80 seconds at various temperatures No visible effect to label at 626°F (330°C), label discolors slightly at 644°F (340°C), but still functional, at 662°F (350°C) label still functional but slightly discolored and adhesive discolored at label edge. 5 minutes at various temperatures No visible effect to label at 536°F (280°C),label discolors slightly at 572°F (300°C) but still functional, at 608°F (320°C) label still functional but slightly discolored and adhesive discolored at edge. 2 hours at various temperatures No visible effect to label at 500°F (260°C), adhesive brown at edge of label at 536°F(280°C). Long Term High Service Temperature 1000 hours at various temperatures No visible effect to label at 356°F at (180°C) label still functional but slightly discolored and adhesive brown at edge. Low Service Temperature 1000 hours at ­-94°F (­-70°C) No visible effect ASTM G155, Cycle 1 1000 hours in Xenon Arc Weather­-Ometer® 1000 hours at 100°F, 95% RH Topcoat degraded Weatherability 1 Humidity Resistance UV Light Resistance Abrasion Resistance Salt Fog Resistance Chemical Vapor Phase Resistance No visible effect ASTM G155, cycle 1, dry Topcoat fades to off­-white, 1000 hours in Q-­Sun Xenon Test label still functional Chamber Taber Abraser, CS­-10 grinding wheels, Print legible after 100 cycles 500 g/arm (Fed. Std. 191A, Method 5306) ASTM B117 Slight discoloration of topcoat, no 1000 hours in 5% salt fog solution visible effect to print chamber Label adhered to epoxy PC board and exposed to the vapor of the boiling chemical for 10 minutes and then rubbed with a wetted cotton swab for 10 rubs. Test samples were baked 4 minutes at 160°C prior to testing. Ionox® 3955 Slight print smear Micronox® MX 2501 Slight print smear Label adhered to epoxy PC board and No visible effect exposed to 10 second dip at 249°C Wave Solder 1 B­-724 is not recommended for outdoor use. PERFORMANCE PROPERTY CHEMICAL RESISTANCE Samples were printed with the Brady Series R4300 thermal transfer ribbon. Labels were adhered to epoxy PC board. Test samples were exposed to indicated environments. Test samples were baked 4 minutes at 160°C before testing. All test samples were immersed in the test fluids for 10 minutes prior to rub with cotton swab ten times. CHEMICAL REAGENT SUBJECTIVE OBSERVATION TO VISUAL CHANGE EFFECT TO LABEL R4300 WITHOUT RUB 1 WITH RUB 1 Kyzen Corp. 15% Aquanox® A4625 at 140°F (60°C) No visible effect Kyzen Corp. 17% Aquanox® A4620 at 140°F (60°C) No visible effect 1 2 Kyzen Corp. 10% Aquanox® A4638 at 150°F (65°C) No visible effect 1 1 Kyzen Corp. 20% Aquanox® A4703 at 145°F (63°C) No visible effect 1 1 Zestron 15% Atron ® AC205 at 150°F (65°C) No visible effect 1 2 Zestron 15% Atron ® AC207 at 150°F (65°C) No visible effect 1 2 Zestron 15% Vigon® A201 at 150°F (65°C) No visible effect 1 2 Zestron 15% Vigon® N600 at 150°F (65°C) No visible effect 1 2 99% Isopropyl Alcohol at 180°F (82°C) No visible effect 1 1 Deionized water at 212°F (100°C) No visible effect 1 1 Rating Scale: 1=no visible effect 2=slight smear or print removal, detectable but minimal smear 3=moderate smear or print removal (print still legible) 4=severe smear or print removal (print illegible or just barely legible 5=complete print removal PERFORMANCE PROPERTY SOLVENT RESISTANCE TEST METHOD MIL-­STD-­202G, Method 215 K Test samples were printed with the Brady Series R4300 thermal transfer ribbon. Labels were printed with alphanumerics and barcodes. Test samples were subjected to 3 cycles of 3 minute immersions immediately followed by a toothbrush rub after each immersion. TEST FLUID Solvent A 1 part IPA, 3 parts Mineral Spirits RESULTS R4300 Meets requirement Solvent C, Terpene defluxer Meets requirement Solvent D, Saponifier @ 70°C Meets requirement Shelf Life: Shelf life is ​two years from the date of receipt​for this product as long as this product is stored in its original packaging in an environment below 80° F (27° C) and 60% RH. It remains the responsibility of the user to assess the risk of using this product. We encourage customers to develop testing protocols that will qualify a product's fitness for use in their actual application. Trademarks: ANSI: American National Standards Institute (U.S.A.) ASTM: American Society for Testing and Materials (U.S.A.) Aquanox® is a registered trademark of the Kyzen Corporation Atron® is a registered trademark of the Zestron Corporation Ionox® is a registered trademark of the Kyzen Corporation Micronox® is a registered trademark of the Kyzen Corporation PSTC: Pressure Sensitive Tape Council (U.S.A.) Polyken™ is a trademark of Testing Machines Inc. Vigon® is the registered trademark of Zestron Corporation Weather-Ometer® is a registered trademark of Atlas Material Testing Technology LLC Note: All values shown are averages and should not be used for specification purposes. Test data and test results contained in this document are for general information only and shall not be relied upon by Brady customers for designs and specifications, or be relied on as meeting specified performance criteria. Customers desiring to develop specifications or performance criteria for specific product applications should contact Brady for further information. Product compliance information is based upon information provided by suppliers of the raw materials used by Brady to manufacture this product or based on results of testing using recognized analytical methods performed by a third party, independent laboratory. As such, Brady makes no independent representations or warranties, express or implied, and assumes no liability in connection with the use of this information. WARRANTY Brady products are sold with the understanding that the buyers will test them in actual use and determine for themselves their adaptability to their intended uses. Brady warrants to the buyers that its products are free from defects in material and workmanship, but limits its obligation under this warranty to replacement of the product shown to Brady's satisfaction to have been defective at the time Brady sold it. This warranty does not extend to any persons obtaining the product from the buyers. This warranty is in lieu of any other warranty, express or implied, including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose, and of any other obligations or liability on Brady's part. Under no circumstances will Brady be liable for any loss, damage, expense, or consequential damages of any kind arising in connection with the use, or inability to use, Brady's products. Copyright 2023 Brady Worldwide, Inc. | All Rights Reserved Material may not be reproduced or distributed in any form without written permission. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Brady North America | 6555 W. Good Hope Rd | Milwaukee, WI 53223 | USA | Tel: 414-358-6600 | Fax: 800-292-2289