Brady B-521label_film_tape6 Orderable SKUs
THERMAL TRANSFER PRINTABLE GLOSSY CLEAR POLYPROPYLENE LABEL STOCK
B-521 is a clear polypropylene label stock with removable adhesive, suitable for alphanumeric and barcode applications requiring good solvent resistance, heat resistance, and clean removability.
Material Composition
Clear polypropylene
Adhesive System
Removable
Operating Temperature
-70°C to 100°C (-94°F to 212°F)
Total Thickness
—
Industrial Safety & Asset Marker
B-521 Application & Installation Blueprint
Heavy-Duty Industrial Safety & Identification Marker • Physical application tolerances and surface engineering
Industrial Fit Certified
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-521.
Popular B-521 Formats
Standard industrial rolls and die-cut sizes with unit cost breakdown#1 Popular Choice
Standard Part
THT-17-521-3
1 in H x 2 in W
Roll of 3000 Labels
Roll / Pack Total:$158.99 USD
Normalized Unit Cost:$0.053/label
Material Area Cost:$0.03/sq in
Supported Hardware:
i5100i7100i7500+1
#2 Standard Format
Standard Part
THT-19-521-1
2 in H x 3 in W
Roll of 1000 Labels
Roll / Pack Total:$146.99 USD
Normalized Unit Cost:$0.15/label
Material Area Cost:$0.02/sq in
Supported Hardware:
i5100i7100i7500+1
#3 High Capacity
Standard Part
THT-59-521-10
0.5 in H x 1 in W
Pack of 2 Rolls
Roll / Pack Total:$200.99 USD
Normalized Unit Cost:$0.020/label
Material Area Cost:$0.04/sq in
Supported Hardware:
i5100i7100i7500+1
All 6 Orderable Part Numbers
Pricing: $146.99 – $215.99 USD
| Catalog SKU | Dimensions | Packaging / Qty | List Price & Unit Cost | Order MOQ | Compatible Printers | Hardware & Related |
|---|---|---|---|---|---|---|
THT-17-521-3 UPC: 754473645472 | 1 in H x 2 in W | Roll of 3000 Labels | $158.99 USD $0.053/label ($5.30/100) $0.03/sq in | 1 ROL Standard Order | i5100i7100+2 | |
THT-19-521-1 UPC: 754473645489 | 2 in H x 3 in W | Roll of 1000 Labels | $146.99 USD $0.15/label ($14.70/100) $0.02/sq in | 1 ROL Standard Order | i5100i7100+2 | |
THT-59-521-10 UPC: 754473645434 | 0.5 in H x 1 in W | Pack of 2 Rolls | $200.99 USD $0.020/label ($2.01/100) $0.04/sq in | 1 PAK Standard Order | i5100i7100+2 | |
THT-12-521-10 UPC: 754473645526 | 0.437 in H x 0.5 in W | Roll of 10000 Labels | $148.99 USD $0.015/label ($1.49/100) $0.07/sq in | 1 ROL Standard Order | i5100i7100+2 | |
THT-5-521-10 UPC: 754473645502 | 0.5 in H x 1 in W | Roll of 10000 Labels | $172.99 USD $0.017/label ($1.73/100) $0.03/sq in | 1 ROL Standard Order | i5100i7100+2 | |
THT-18-521-3 UPC: 754473645540 | 1 in H x 3 in W | Roll of 3000 Labels | $215.99 USD $0.072/label ($7.20/100) $0.02/sq in | 1 ROL Standard Order | i5100i7100+2 |
Quality Assurance, Storage & Regulatory Compliance
Standardized engineering guidelines for warehouse storage, application temperature, and agency certifications.
Shelf Life & Warehouse Storage
Expected Shelf Life: 1 Year 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: -70°C to 100°C (-94°F to 212°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: Non-approved variant
UL DirectoryCSA C22.2: Not certified
CSA DirectoryHalogen-Free per DIN VDE 0472 Part 815
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.
Sponsored Industrial Label Solutions
Industrial Label Printers & Materials
Relevant Technical Equipment & Consumables [Ad Slot spec-mid-B-521]
ASTM Physical & Mechanical Properties
Standardized laboratory test data measured in accordance with ASTM D 1000, ASTM D 2979, and ASTM D 2671.
Thermal Transfer Ribbon Compatibility
Official Brady recommended ribbons engineered for maximum contrast, smear resistance, and UL certification compliance.
Recommended Thermal Transfer
Non-printable hardware, tag, or pre-printed material.
* 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 |
|---|---|---|
| 10% Sodium Hydroxide Solution | Tested | Tested |
| 10% Sulfuric Acid solution | Tested | Tested |
| 3% Alconox® Detergent Solution | Tested | Tested |
| Windex® | Tested | Tested |
| Isopropyl Alcohol | Tested | Tested |
| Mineral Spirits | Tested | Tested |
| Brake Fluid DOT 3 | Tested | Tested |
| Skydrol® 500B-4 | Tested | Tested |
| SAE 20 WT Oil at 70°C | Tested | Tested |
| MIL 5606A Oil | Tested | Tested |
| Formula 409® Cleaner | Tested | Tested |
| Northwoods TM Buzz Saw Citrus Degreaser | Tested | Tested |
| Deionized Water | Tested | Tested |
Environmental & Aging Durability Testing
| Environmental Exposure Condition | Observation & Legibility Result |
|---|---|
| 521 THERMAL TRANSFER PRINTABLE GLOSSY CLEAR POLYPROPYLENE LABEL STOCK - Material Spec (Brady B-521) Material family | B-521 |
| Service temperature | -70 to 100 °C |
Verified Target Applications & Use Cases
- Industrial rating plates, asset identification, and electrical component labeling.