Datasheet
Performance properties tested with white printable zone of B-427 printed with Brady Series R4300 black thermal transfer ribbon.
Samples wrapped around 0.080” OD TFE wire in a self-laminating format.
PERFORMANCE PROPERTIES
TEST METHODS
TYPICAL RESULTS
High Service Temperature
30 days at 158°F (70°C)
Slight discoloration. No visible effect at
140°F (60°C)
Low Service Temperature
30 days at -94°F (-70°C)
No visible effect
Humidity Resistance
30 days at 100°F (37°C), 95% R.H.
No visible effect
Weatherability
ASTM G155, Cycle 1
30 days in Xenon Arc Weatherometer
No visible effect
PERFORMANCE PROPERTIES
CHEMICAL RESISTANCE
White printable zone of B-427 was printed with Brady Series R4300 black thermal transfer ribbon. Samples wrapped around
0.080” OD TFE wire in a self-laminating format. Except where noted, testing was conducted at room temperature after 24
hour dwell. Testing consisted of 5 cycles of a 10 minute immersion in the specified test fluid followed by a 30 minute recovery
period.
CHEMICAL REAGENT
SUBJECTIVE OBSERVATION OF VISUAL CHANGE
SUBSTRATE/ADHESIVE
SERIES R4300 RIBBON
Cleaners and Solvents
No visible effect
No visible effect
Isopropyl Alcohol
No visible effect
No visible effect
Mineral Spirits
No visible effect
No visible effect
Northwoods
TM
Buzz Saw Terpene
Cleaner
No visible effect
No visible effect
Formula 409®
No visible effect
No visible effect
Deionized Water
No visible effect
No visible effect
Fuels, Oils and Lubricants
Gasoline
Moderate unwrap
No visible effect
Brake Fluid
No visible effect
No visible effect
SAE 30 WT Oil at 70°C
No visible effect
No visible effect
Yellow 77® Wire Pulling Lubricant
No visible effect
No visible effect
Deionized Water
No visible effect
No visible effect
Aerospace Related Fluids
JP-8 Jet Fuel
No visible effect
No visible effect
Skydrol® 500B-4
Material destroyed
NA
MIL-H-5606 Oil
No visible effect
No visible effect
B-427 is not recommended for use in harsh organic solvents such as methyl ethyl ketone, acetone, or 1,1,1-trichloroethane.
Shelf Life and Fitness for Use: Product testing, customer feedback, and history of similar products, support a customer performance
expectation of one year from the date of receipt for this product as long as this product is stored in its original packaging in an



