How well does Brady B-425A adhere to stainless steel, powder coat, and plastic surfaces?

Brady B-425A uses a Acrylic adhesive. For optimum bond strength, surfaces should be cleaned with an isopropyl alcohol (IPA) wipe and allowed to dwell for 24 hours prior to full chemical or mechanical stress.

Which thermal transfer ribbons and Brady printers are compatible with B-425A?

The official manufacturer-recommended thermal transfer ribbon for Brady B-425A is R4300, R4500, R6200. Using the recommended resin or hybrid ribbon ensures crisp edge definition, high-density 2D DataMatrix scanning, and compliance with abrasion rub standards. Compatible Brady printers include benchtop industrial systems (i3300, i5100, i7100, BBP33) as well as rugged portable field printers (M510, M610, and M710) depending on the SKU form factor.

How does Brady B-425A withstand industrial chemicals, solvents, and fuels?

Brady B-425A resists common industrial reagents including lubricating oils, water, mild acids, and aliphatic solvents.

Is Brady B-425A UL Recognized, CSA Accepted, or Halogen-Free?

Brady B-425A meets RoHS 2011/65/EU and REACH (SVHC) directives. It is a UL Recognized Component under standard(s) UL969, UL969L with File Number(s) MH17154. It is CSA Accepted under Standard C22.2 No. 0.15 (File 041833).

What are the critical engineering limitations and warnings for Brady B-425A?

Key limitations cited in the Brady Technical Data Sheet include: Not recommended for long-term outdoor use; not recommended for long -term outdooruse. To prevent failure, ensure the application substrate matches the recommended surface energy profiles and adhere to minimum application temperature requirements during installation.

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Brady B-425Alabel_film_tape12 Orderable SKUs

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Brady B-425A: B-425A THERMAL TRANSFER PRINTABLE POLYPROPYLENE LABEL STOCK

Q: What are the primary industrial applications for Brady B-425A (B-425A THERMAL TRANSFER PRINTABLE POLYPROPYLENE LABEL STOCK)?

Brady B-425A is a high-performance White polypropylene designed specifically for rating plates, asset tags, and industrial equipment identification. It features a Acrylic engineered for long-term industrial reliability in environments requiring -40°C to 160°C (-40°F to 320°F) performance.

Q: What is the continuous operating temperature range for Brady B-425A?

Brady B-425A is rated for continuous service temperatures from -40°C to 160°C (-40°F to 320°F). In laboratory heat-aging tests, it maintains dimensional stability and barcode contrast across broad thermal cycles.

Brady B-425A is a thermal transfer printable polypropylene label stock with acrylic adhesive, offering excellent solvent resistance and print performance.

Material Composition

White polypropylene

Adhesive System

Acrylic

Operating Temperature

-40°C to 160°C (-40°F to 320°F)

Total Thickness

—

Industrial Safety & Asset Marker

B-425A Application & Installation Blueprint

Heavy-Duty Industrial Safety & Identification Marker • Physical application tolerances and surface engineering

Industrial Fit Certified

B-425A real-world industrial application

Installed in real-world industrial environment

Standard Industrial Marking Procedure

1Ensure application surface is dry and free of loose particulate or heavy oil.

2Peel and apply with steady firm pressure from center to edge.

3Allow 24 hours for ultimate cross-linked adhesion strength.

Engineering Tolerance: Engineered to withstand standard industrial plant environmental conditions and indoor/outdoor temperature swings.

Substrate Compatibility & Adhesion Matrix

Smooth Metals & Stainless Steel

Standard Bond (5/5)

Rigid Thermoplastics & ABS

Standard Bond (4.8/5)

Painted Metal Cabinets

Standard Bond (4.8/5)

Glass & Smooth Composite

Standard Bond (4.8/5)

Tested Environmental Survivability

Industrial Plant Temperature SwingsDust, Grease & Mild FluidsStandard Abrasion & RubbingLong-Term Legend Legibility

Recommended Field & Shop Tools:

i3300 / i5100 Benchtop PrinterM210 / M610 Handheld ToolStandard Thermal Ribbon

Orderable Part Numbers, Packaging & Distributor SKUs

Official Brady SKUs, roll dimensions, package quantities, list pricing, Grainger part numbers, and printer compatibility for B-425A.

Popular B-425A Formats

Standard industrial rolls and die-cut sizes with unit cost breakdown

#1 Popular Choice

Standard Part

THT-5-425-10

0.5 in H x 1 in W

Roll of 10000 Labels

Roll / Pack Total:$192.99 USD

Normalized Unit Cost:$0.019/label

Material Area Cost:$0.04/sq in

Supported Hardware:

BBP81i5100i6100+5

Grainger

#2 Standard Format

Standard Part

M6-54-425-FT

1.5 in H x 1.6 in W

Roll of 100 Labels

Roll / Pack Total:$41.19 USD

Normalized Unit Cost:$0.41/label

Material Area Cost:$0.17/sq in

Supported Hardware:

M610M611M710 (with media adapter)

Grainger

#3 High Capacity

Standard Part

B33-17-425

1 in H x 2 in W

Cartridge of 1500 Labels

Roll / Pack Total:$91.99 USD

Normalized Unit Cost:$0.061/label

Material Area Cost:$0.03/sq in

Supported Hardware:

BBP33i3300i5300+1

Grainger

All 12 Orderable Part Numbers

Pricing: $30.99 – $679.99 USD

Catalog SKU	Dimensions	Packaging / Qty	List Price & Unit Cost	Order MOQ	Compatible Printers
THT-5-425-10Popular UPC: 662820313205	0.5 in H x 1 in W	Roll of 10000 Labels	$192.99 USD $0.019/label ($1.93/100) $0.04/sq in	1 ROL Standard Order	BBP81i5100+6
M6-54-425-FTPopular UPC: 888434598795	1.5 in H x 1.6 in W	Roll of 100 Labels	$41.19 USD $0.41/label ($41.19/100) $0.17/sq in	1 ROL Standard Order	M610M611+1
B33-17-425Popular UPC: 662820967316	1 in H x 2 in W	Cartridge of 1500 Labels	$91.99 USD $0.061/label ($6.13/100) $0.03/sq in	1 ROL Standard Order	BBP33i3300+2
M4-1-425-FPPopular UPC: 888434628638	1.18 in H x 0.788 in W	Cartridge of 120 Tags	$30.99 USD $0.26/label ($25.82/100) $0.28/sq in	1 CTR Standard Order	M410M510+1
THT-55-425-1 UPC: 662820313267	2 in H x 4 in W	Roll of 1000 Labels	$207.99 USD $0.21/label ($20.80/100) $0.03/sq in	1 ROL Standard Order	BBP81i5100+6
B33-76-425 UPC: 888434563366	3 in H x 4 in W	Roll of 400 Labels	$130.99 USD $0.33/label ($32.75/100) $0.03/sq in	1 ROL Standard Order	i3300i5300+2
B33-18-425 UPC: 662820967323	1 in H x 3 in W	Cartridge of 1500 Labels	$116.99 USD $0.078/label ($7.80/100) $0.03/sq in	1 ROL Standard Order	BBP33i3300+2
M7-1-425-FPPopular UPC: 888434588291	0.788 in H x 1.18 in W	Roll of 250 Labels	$41.69 USD $0.17/label ($16.68/100) $0.18/sq in	1 ROL Standard Order	M710
M7-54-425-FT UPC: 888434605851	1.57 in H x 1.49 in W	Roll of 100 Labels	$68.99 USD $0.69/label ($68.99/100) $0.29/sq in	1 ROL Standard Order	M710
B33-55-425 UPC: 888434563359	2 in H x 4 in W	Roll of 600 Labels	$122.99 USD $0.20/label ($20.50/100) $0.03/sq in	1 ROL Standard Order	i3300i5300+2
A55-7-425 UPC: 888434554753	3 in H x 2 in W	Roll of 1700 Labels	$679.99 USD $0.40/label ($40.00/100) $0.07/sq in	1 ROL Standard Order	A5500
THT-7-425-3 UPC: 662820313212	1.25 in H x 2.75 in W	Roll of 3000 Labels	$278.99 USD $0.093/label ($9.30/100) $0.03/sq in	1 ROL Standard Order	BBP81i5100+6

Quality Assurance, Storage & Regulatory Compliance

Standardized engineering guidelines for warehouse storage, application temperature, and agency certifications.

Shelf Life & Warehouse Storage

Expected Shelf Life: 2 Years from receipt

Storage Temperature: Below 80°F (27°C)

Relative Humidity: ≤ 60% RH

Must be stored in original packaging in a climate-controlled warehouse.

Application vs Service Limits

Min Application Temp: 50°F (10°C)

Service Temp Range: -40°C to 160°C (-40°F to 320°F)

Full Cure / Dwell Time: 24 Hours (ASTM D1000)

Clean surface of oil/grease before bonding for maximum peel strength.

Agency Testing & File Directories

UL 969 / 2238: MH17154

UL Directory

CSA C22.2: 041833

CSA Directory

Environmental & Safety Standards

RoHS 3 Compliance:2011/65/EU (Pass 2015/863)

REACH Status:SVHC Free (<0.1% w/w)

CA Prop 65:Compliant Notice

Certificates of Conformance (CoC) available on order shipment.

Engineering Limitations & Chemical Fitness Warnings

Extracted directly from Brady Technical Data Sheets to prevent real-world application failures and chemical degradation:

Not recommended for long-term outdoor use
not recommended for long -term outdooruse

ASTM Physical & Mechanical Properties

Standardized laboratory test data measured in accordance with ASTM D 1000, ASTM D 2979, and ASTM D 2671.

Physical Property	Test Method	Standard Test Units (US)	Metric Units (SI)
Polyken™ Probe Tack	ASTM D 2979	36.6 oz	1040 grams

Thermal Transfer Ribbon Compatibility

Official Brady recommended ribbons engineered for maximum contrast, smear resistance, and UL certification compliance.

Recommended Thermal Transfer

Series R4300

Series R4500

Series R6200

Series R6400

* Note: Testing print permanence with official Brady ribbons is required to maintain UL/CSA agency certification on printed labels.

Chemical & Solvent Resistance Matrix

Standardized dip and rub immersion test observations across industrial fuels, oils, solvents, and cleaners.

Tested per ASTM D 895 / Brady standard dip & rub immersion.

Chemical Reagent / Solvent	Substrate / Adhesive Effect	Thermal Ribbon Permanence
Methyl Ethyl Ketone	Moderate ooze	Moderate ooze
Xylene	Severe ooze	Severe ooze
Toluene	No visible effect	No visible effect
Acetone	No visible effect	No visible effect
Mineral Spirits	Slight ooze	Slight ooze
JP-8 Jet Fuel	Moderate ooze	Moderate ooze
Brake Fluid	No visible effect	No visible effect
SAE 20 wt Oil RT	No visible effect	No visible effect
SAE 20 wt Oil @ 70C	No visible effect	No visible effect
ASTM #3 Oil	No visible effect	No visible effect
Isopropyl Alcohol	Slight ooze	Slight ooze
Mil 5606 Oil	No visible effect	No visible effect
Skydrol®500B	No visible effect	No visible effect
Formula 409®	No visible effect	No visible effect
DI Water	No visible effect	No visible effect
13% Alconox®	No visible effect	No visible effect
Northwoods™BuzzSaw Degreaser	No visible effect	No visible effect
Super Agitene®	No visible effect	No visible effect
10% Sodium Hydroxide Solution	No visible effect	No visible effect
Mineral Spirits	Tested	Tested
JP-8 Jet Fuel	Tested	Tested
Brake Fluid	Tested	Tested
SAE 20 wt Oil RT	Tested	Tested
ASTM #3 Oil	Tested	Tested
Isopropyl Alcohol	Tested	Tested
Mil 5606 Oil	Tested	Tested
Skydrol®500B	Tested	Tested
Formula 409®	Tested	Tested
DI Water	Tested	Tested
3% Alconox®	Tested	Tested
Northwoods™ BuzzSaw Degreaser	Tested	Tested
Super Agitene®	Tested	Tested

Environmental & Aging Durability Testing

Environmental Exposure Condition	Observation & Legibility Result
425A THERMAL TRANSFER PRINTABLE POLYPROPYLENE LABEL STOCK - Material Spec (Brady B-425A) Material family	B-425A
425A is a thermal transfer printable polypropylene label stock with acrylic adhesive, offering excellent solvent resistance and print performance. ## Verified specifications - Material type	White polypropylene
Service temperature	-40 to 160 °C

Verified Target Applications & Use Cases

Industrial rating plates, asset identification, and electrical component labeling.

Brady B-425A Frequently Asked Questions & Engineering Guide

Verified technical answers on physical adhesion, temperature thresholds, ribbon pairings, and replacement standards for B-425A.

Brady B-425A is a high-performance White polypropylene designed specifically for rating plates, asset tags, and industrial equipment identification. It features a Acrylic engineered for long-term industrial reliability in environments requiring -40°C to 160°C (-40°F to 320°F) performance.

Brady B-425A is rated for continuous service temperatures from -40°C to 160°C (-40°F to 320°F). In laboratory heat-aging tests, it maintains dimensional stability and barcode contrast across broad thermal cycles.

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