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Technical Data Sheet

BRADY B-426 THERMAL TRANSFER PRINTABLE POLYIMIDE LABEL STOCK

TDS No. B-426
Effective Date: 26-Sep-2006

Description:

GENERAL

Print Technology:  Thermal Transfer

Material Type:  Greenish/Amber Polyimide

Finish:   Matte

Adhesive:  Permanent Acrylic

 

APPLICATIONS

Printed circuit board and electronic component preprocess labeling

 

RECOMMENDED RIBBONS

Brady Series R4300

 

REGULATORY/AGENCY APPROVALS

Brady B-426 is RoHS compliant to 2005/618/EC MCV amendment to RoHS Directive 2002/95/EC.

SPECIAL FEATURES

B-426 in combination with the Series R4300 ribbon passes the requirements of:

MIL-PRF-55110G General Specification for Printed Wiring Boards

MIL-STD-202G, Notice 12, Method 215K

SAE AS81531 Marking of Electrical Insulating Material

 



Details:


PHYSICAL PROPERTIES
TEST METHODS
AVERAGE RESULTS
Thickness ASTM D 1000
-Substrate
-Adhesive
-Total
0.0028 inch (0.072 mm)
0.0016 inch (0.039 mm)
0.0044 inch (0.111 mm)
Adhesion to:
-Stainless Steel


-Epoxy PC Board


-Polypropylene


-Textured ABS		 ASTM D 1000
20 minute dwell
24 hour dwell

20 minute dwell
24 hour dwell

20 minute dwell
24 hour dwell

20 minute dwell
24 hour dwell
30 oz/inch (33 N/100 mm)
35 oz/inch (38 N/100 mm)

20 oz/inch (22 N/100 mm)
35 oz/inch (38 N/100 mm)

13 oz/inch (14 N/100 mm)
13 oz/inch (14 N/100 mm)

3 oz/inch (3 N/100 mm)
6 oz/inch (6 N/100 mm)
Tack ASTM D 2979
Polyken™ Probe Tack
(1 second dwell, 1 cm/sec separation)
19 oz (600 grams)
Drop Shear PSTC-7 (except use 1/2" x 1" sample)
Over 100 hours
Dielectric Strength ASTM D 1000
9700 Volts
Flammability ASTM D 1000
Average Burn Time
Less than 5 seconds
Performance properties tested on B-426 printed with Series R4300 on BradyPrinter™ THT Model 203X thermal transfer printer. Printed samples of B-426 were laminated to aluminum and allowed to dwell 24 hours before exposure to the indicated environmental conditions.

PERFORMANCE PROPERTIES
TEST METHOD
TYPICAL RESULTS
Short Term High Service Temperature 80 seconds at 626°F (330°C) 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 536°F (280°C) No visible effect to label at 280°C, label discolors slightly at 300°C but still functional, at 320°C label still functional but slightly discolored and adhesive discolored at label edge
2 hours at 518°F (270°C) No visible effect to label at 260°C, adhesive brown at edge of label at 280°C
Long Term High Service Temperature 1000 hours at 356°F (180°C) No visible effect to label at 180°C, at 200°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
Weatherability1 ASTM G155, Cycle 1
(Xenon Arc 1000 hours)		 Topcoat degraded
Humidity Resistance 1000 hours at 100°F, 95% R.H. No visible effect
UV Light Resistance 1000 hours in Sunlighter™ 100 Topcoat fades to light yellow, label still functional
Abrasion Resistance Taber Abraser, CS-10 grinding wheels, 500 g/arm (Fed. Std. 191A, Method 5306) Print legible to 150 cycles
Salt Fog Resistance 30 days in 5% salt fog solution chamber
(ASTM B 117)		 No visible effect
Wave Solder and Vapor Phase Resistance Label adhered to epoxy PC board and exposed to:
1. 10 second dip at 480°F (249°C)
2. 2 minutes in Fluorinert™ FC-5312 vapor phase at 420°F (216°C)		 Solder Dip: No visible effect
Vapor Phase: No visible effect with out rub, moderate print smear with rub
1B-426 is not recommended for outdoor use.

PERFORMANCE PROPERTY
CHEMICAL RESISTANCE
Samples printed with Series R4300 ribbon. Samples laminated to aluminum panels and allowed to dwell 24 hours prior to testing. Test was conducted at room temperature except where noted. Testing consisted of 5 cycles of 10 minute immersions in the specified test fluid followed by a 30 minute recovery period. After final immersion, samples rubbed 10 times with cotton swab saturated with test fluid.


CHEMICAL REAGENT
SUBJECTIVE OBSERVATION OF VISUAL CHANGE
EFFECT TO LABEL STOCK
R4300 NO RUB
R4300 WITH RUB
Methyl Ethyl Ketone Slight adhesive ooze No visible effect Slight print removal
1,1,1-Trichloroethane Slight adhesive ooze No visible effect Slight print removal
Toluene No visible effect No visible effect Slight print removal
Isopropyl Alcohol No visible effect No visible effect Slight print removal
Mineral Spirits No visible effect No visible effect Slight print removal
JP-8 Jet Fuel Slight adhesive ooze No visible effect Slight print removal
SAE 20 WT Oil at 70°C No visible effect No visible effect Slight print removal
Mil 5606 Oil No visible effect No visible effect No visible effect
Skydrol® 500B-4 No visible effect No visible effect Slight print removal
BIOACT® EC-7R™ Terpene Cleaner No visible effect No visible effect Slight print removal
6% Alphametals 2110
Saponifier at 70°C		 Topcoat removed Topcoat removed Topcoat removed
Axarel® 32 No visible effect No visible effect Moderate print removal
RE-ENTRY® KNI Solvent 2000 Terpene Cleaner No visible effect No visible effect Severe print removal
Deionized Water No visible effect No visible effect No visible effect
3% Alconox® Detergent No visible effect No visible effect No visible effect
10% Sodium Hydroxide Solution Whitening of topcoat Slight print fade Slight print removal
10% Sulfuric Acid Solution No visible effect No visible effect No visible effect

B-426 is not recommended for use with aqueous cleaning processes.

PERFORMANCE PROPERTY
MIL-STD-202G, NOTICE 12, METHOD 215K

Samples printed with R4300 ribbon. Printed labels subjected to 3 cycles of 3 minute immersions immediately followed by a toothbrush rub after each immersion.


TEST FLUID
RESULTS
Solvent A
1 part IPA, 1 part Mineral Spirits		 No visible effect
Solvent B
1,1,1-Trichloroethane		 Solvent deleted per Notice 12
Solvent C
Terpene Defluxer		 No visible effect
Solvent D
Saponifier at 70°C		 No visible effect
Product testing, customer feedback, and history of similar products, support a customerperformance expectation of at leasttwo 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 degrees F and 60% RH . We are confident that our product will perform well beyond this time frame. However, it remains the responsibility of the user to assess the risk of using such product. We encourage customers to develop functional testing protocols that will qualify a product's fitness for use, in their actual applications.





Trademarks:
Alconox® is a registered trademark of Alconox Co.
Axarel® is a registered trademark of Petroferm, Inc.
BIOACT® is a registered trademark of Petroferm, Inc.
BradyPrinter™ is a trademark of Brady Worldwide, Inc.
EC-7R™ is a trademark of Petroferm Inc.
Fluorinert™ is a trademark of the 3M Corporation.
Polyken™ is a trademark of Testing Machines Inc.
RE-ENTRY® is a registered trademark of Environsolv Inc.
Skydrol® is a registered trademark of the Monsanto Company
Sunlighter™ is a trademark of the Test Lab Apparatus Company
ASTM: American Society for Testing and Materials (U.S.A.)
PSTC: Pressure Sensitive Tape Council (U.S.A.)
SAE: Society of Automotive Engineers (U.S.A.)
All S.I. Units (metric) are mathematically derived from the U.S. Conventional
Units.

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 2007 Brady Worldwide, Inc. | All Rights Reserved
Material may not be reproduced or distributed in any form without written permission.

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