BRADY B-423 Thermal Transfer Printable Glossy White Polyester Label


Description

B-423 is a glossy white polyester film with a permanent acrylic pressure sensitive adhesive and a topcoat specifically formulated for thermal transfer printing.

B-423 is designed for applications such as topside of printed circuit boards and rating plates that utilize high quality/density alphanumerics, barcodes and graphics. B-423 is designed to withstand numerous solvents while maintaining outstanding image quality.

Recommended ribbons are the Brady Series R4900 and R6000 black and R4400 colored (red, blue, green, and white) ribbons for optimal print performance.

B-423 is a UL-recognized component and CSA accepted material when printed with Brady Series R4900 and R6000 ribbons. See UL file MH17154 and CSA Acceptance Record LS 41833 for specific details.

Brady B-423 meets requirements of a halogen-free material per DIN VDE 0472 part 815. (Statement based on review of product construction and confirmatory halogen content test run at an independent test laboratory.)


Details

PHYSICAL PROPERTIES TEST METHODS AVERAGE RESULTS
Thickness ASTM D 1000
-Substrate
-Adhesive
-Total
0.002 inch (0.0508 mm)
0.001 inch (0.0254 mm)
0.003 inch (0.0762 mm)
Adhesion to:
-Stainless Steel
ASTM D 1000
20 minute dwell
24 hour dwell
46 oz/inch (50 N/100 mm)
55 oz/inch (60 N/100 mm)
Tack ASTM D 2979
Polyken™ Probe Tack
(1 second dwell)
24 oz (700 g)
Tensile Strength and Elongation ASTM D 1000
-Machine Direction
40 lbs/inch (700 N/100 mm), 70%
Dielectric Strength ASTM D 1000 7000 Volts


Performance properties tested on B-423 printed with Series R4900 and R6000 ribbons using the BradyPrinter™ THT Model 203 thermal transfer printer. Printed samples were laminated to aluminum and allowed to dwell 24 hours before exposure to the indicated environments. Unless noted, results are the same for both ribbons.


PERFORMANCE PROPERTIES TEST METHOD TYPICAL RESULTS
High Service Temperature 30 days at 248°F (120°C) No visible effect
Low Service Temperature 30 days at -40°F (-40°C) No visible effect
Humidity Resistance 30 days at 100°F (37°C) and 95% R.H. No visible effect
UV Light Resistance 30 days in UV Sunlighter™ 100 No visible effect
Weatherability ASTM G 26
30 days in Xenon Arc Weatherometer
No visible effect
Salt Fog Resistance ASTM B 117
30 days in 5% salt fog solution chamber
No visible effect


PERFORMANCE PROPERTY CHEMICAL RESISTANCE


Samples printed with Series R4900 and R6000 ribbons using a BradyPrinter™ THT Model 203 thermal transfer printer. Samples laminated to aluminum panels and allowed to dwell 24 hours prior to testing. Test conducted at room temperature. 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 R4900 R6000
Methyl Ethyl Ketone Slight adhesive ooze No visible effect w/o rub, complete print removal after rub No visible effect w/o rub, complete print removal after rub
1,1,1-Trichloroethane Slight adhesive ooze No visible effect w/o rub, complete print removal after rub No visible effect w/o rub, complete print removal after rub
Toluene Slight adhesive ooze No visible effect w/o rub, complete print removal after rub No visible effect w/o rub, complete print removal after rub
Freon® TMS No visible effect No visible effect w/o rub, moderate print removal after rub No visible effect w/o rub, slight print removal after rub
Isopropyl Alcohol No visible effect No visible effect w/o rub, slight print removal after rub No visible effect
Mineral Spirits No visible effect No visible effect No visible effect
JP-8 Jet Fuel Slight adhesive ooze No visible effect No visible effect
ASTM #3 Oil No visible effect No visible effect No visible effect
Mil 5606 Oil No visible effect No visible effect No visible effect
Gasoline Slight adhesive ooze No visible effect No visible effect
Skydrol® 500B-4 Slight adhesive ooze No visible effect w/o rub, complete print removal after rub No visible effect w/o rub, complete print removal after rub
Super Agitene® No visible effect No visible effect No visible effect
Alphametals BIOACT® EC-7™ Slight adhesive ooze No visible effect No visible effect
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 No visible effect No visible effect No visible effect
10% Sulfuric Acid Solution No visible effect No visible effect No visible effect

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