Non Detectable Warning Tape
OPALUS PACK manufactures non detectable warning tape from colored PE film for projects that need a clear visual warning above buried services. This non-metallic tape is printed with utility messages and color coded for electric, gas, water, communication, sewer, or irrigation lines. It is a practical option for shallow trenches or known utility routes where contractors need low-cost, continuous identification during future excavation without added locating functions.
- Common Size: 3 in / 6 in width, 1000 ft roll length, custom sizes available
- Material: PE, LDPE, or LLDPE colored warning film
- Structure: Non-metallic film with printed warning legend
- Thickness: 4 mil (0.10 mm) common specification
- Colors: Red, yellow, orange, blue, green, purple, or project color
- Printing: Utility wording, local language, repeat spacing, warning text
Product Details
Product Overview
This underground warning tape is made as a continuous polyethylene film strip for visual identification. In trench work, its role is direct: when soil is opened later, the color and printed message appear before the crew reaches the pipe or cable. A common 4 mil (0.10 mm) PE warning tape gives flexibility for long runs while keeping practical handling strength during installation.
The tape is suitable when the service route has been confirmed through drawings, site marking, utility records, or planned installation work. It is often used on shallow utility routes, site development projects, municipal maintenance areas, and service corridors where a low-cost warning layer is enough. Width, roll length, color, and printed wording can be adjusted to match the utility type and local project specification.
Benefits
- Creates a clear visual warning layer above buried utilities without unnecessary material complexity.
- Helps workers recognize utility type through color coding and repeated printed messages.
- Works well as a utility marking tape for shallow trenches, known pipe routes, and planned service corridors.
- Provides reliable installation handling, with typical PE film tensile performance around 2100-2870 psi depending on film grade.
- Offers high flexibility during trench work, with typical elongation above 500% for standard PE film specifications.
- Supports project printing, including wording, language, legend spacing, and utility identification text.
How Is Non Detectable Warning Tape Installed Above Underground Utilities?
A buried utility warning tape is usually placed above the service line before final backfilling. The aim is to create a visible warning layer between the ground surface and the buried asset. For shallow trenches or routes already shown on drawings, this method gives maintenance crews an early visual reminder during later digging. The tape should run continuously along the route so the warning legend can be seen clearly when the trench is reopened.
TDS / Technical Data Sheet
| Item | Typical Value |
|---|---|
| Product Type | Non detectable underground warning tape |
| Base Material | PE / LDPE / LLDPE film |
| Film Structure | Colored polyethylene warning film, non-metallic |
| Common Thickness | 4 mil (0.10 mm) |
| Width Options | 3 in / 6 in / Custom |
| Roll Length | 1000 ft / Custom |
| Printing Method | Surface printed warning legend |
| Typical Messages | CAUTION BURIED ELECTRIC LINE BELOW / GAS LINE BELOW / WATER LINE BELOW |
| Color Options | Red / Yellow / Orange / Blue / Green / Purple |
| Tensile Strength | 2100-2870 psi, typical range |
| Elongation | >=500%, typical PE film performance |
| Use Condition | Shallow trenches and known utility routes |
| Custom Items | Color, width, thickness, wording, language, repeat spacing |
Applications
- Electrical cable routes where red warning tape and repeated cable warning text are required.
- Gas or oil service lines where yellow color coding helps crews identify the hazard type quickly.
- Water supply routes using blue tape for simple underground line recognition.
- Communication cable and fiber routes where orange printed warning tape separates telecom services from other utilities.
- Sewer lines, drainage projects, and irrigation routes where green or purple tape may be used by project color practice.
- Municipal works, utility contractor projects, and civil construction sites that need a cost-controlled visual identification layer.
What Specifications Should Be Checked Before Selecting Printed Warning Tape?
The best specification is not always the thickest film. Selection should match trench depth, utility type, warning visibility, and expected handling during installation. Common project choices include 3 in or 6 in widths, 1000 ft roll length, and 4 mil (0.10 mm) PE film. Printed warning tape should also be checked for message clarity, repeat spacing, color contrast, and whether the wording matches the buried service. For multi-utility projects, the correct color code can reduce confusion when excavation teams return later.
FAQ
Can non detectable warning tape be customized with different messages?
Yes. OPALUS PACK can print utility-specific messages such as electric line below, gas line below, water line below, or communication cable warning. Language, wording, and repeat spacing can be adjusted.
What thickness is commonly used for this type of tape?
A common specification is 4 mil (0.10 mm) PE film. Other thicknesses can be selected when the project needs different handling strength, visibility, or installation requirements.
Which colors are usually available?
Common colors include red, yellow, orange, blue, green, and purple. These colors help match different underground utility types and make the warning easier to recognize.
Where is this product most suitable?
It is best suited for shallow trenches, documented utility routes, and projects where a printed visual warning layer is required above buried pipes, cables, or service lines.