Brady B-388: B-388 STANDARD TEMPERATURE CABLE MARKER
B-388 cable markers are high performance wire bundle and cable identification tags designed for continuous operating temperatures up to 135°C.
Material Composition
PolyolefinAvailable Colors:White, yellow APPLICATIONS:B-388 cable markers are designed as a high performance wire bundle and cable identification tag. This standardtemperature cable marker is meant for areas with continuous operating temperature up to 135°C. RECOMMENDED RIBBONBrady R6600 series black ribbon
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)
Total Thickness
ASTM D 1000
3 mils (0.003 in)
0.076 mm
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
Isopropyl alcohol
No visible effect
No visible effect
Methyl Ethyl Ketone
Slight smear or print removal, detectable but minimal smear
Slight smear or print removal, detectable but minimal smear
Gasoline
Moderate smear or print removal (print still legible)
Moderate smear or print removal (print still legible)
Diesel Fuel
Slight smear or print removal, detectable but minimal smear
Slight smear or print removal, detectable but minimal smear
MIL 5606 Oil
No visible effect
No visible effect
*120W Oil
No visible effect
No visible effect
Skydrol ® 500 B-4
Slight color shift was observed
Slight color shift was observed
JP-8 Jet Fuel
No visible effect
No visible effect
10% NaCl
No visible effect
No visible effect
Deionized Water
No visible effect
No visible effect
Isopropyl alcohol
Tested
Tested
Methyl Ethyl Ketone
Tested
Tested
Diesel Fuel
Tested
Tested
MIL 5606 Oil
Tested
Tested
120W Oil
Tested
Tested
Skydrol ® 500 B-4
Tested
Tested
JP-8 Jet Fuel
Tested
Tested
10% NaCl
Tested
Tested
Deionized Water
Tested
Tested
Environmental & Aging Durability Testing
Environmental Exposure Condition
Observation & Legibility Result
388 STANDARD TEMPERATURE CABLE MARKER - Material Spec (Brady B-388)
Material family
B-388
388 cable markers are high performance wire bundle and cable identification tags designed for continuous operating temperatures up to 135°C.
## Verified specifications
- Thickness
0.020 +/- 0.003 inches
Service temperature
-55 to 135 °C
Verified Target Applications & Use Cases
Industrial rating plates, asset identification, and electrical component labeling.
Verified technical answers on physical adhesion, temperature thresholds, ribbon pairings, and replacement standards for B-388.
Brady B-388 is a high-performance PolyolefinAvailable Colors:White, yellow APPLICATIONS:B-388 cable markers are designed as a high performance wire bundle and cable identification tag. This standardtemperature cable marker is meant for areas with continuous operating temperature up to 135°C. RECOMMENDED RIBBONBrady R6600 series black ribbon designed specifically for rating plates, asset tags, and industrial equipment identification. It features a Specialty adhesive engineered for long-term industrial reliability in environments requiring -55°C to 135°C (-67°F to 275°F) performance.
Brady B-388 is rated for continuous service temperatures from -55°C to 135°C (-67°F to 275°F). In laboratory heat-aging tests, it maintains dimensional stability and barcode contrast across broad thermal cycles.
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