Metallic Warning Tape

![]() | Metallic Warning Tape
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Product Description
Caution Roll Company is a manufacturer of metallic warning tape for buried utility projects where a clear warning today must also support future locating. Installed in backfill above pipelines, electric cables, gas lines, water lines, sewer routes, and communication cables, this buried utility warning tape gives crews an early visual signal before they reach the protected service. Its internal metallic layer helps create a detectable path, while APWA-style colors and bold warning print make the utility type easier to recognize during trenching, repair, or maintenance work.
Product Photos

Benefits
- Visible and detectable warning: Bright film color warns crews after soil exposure, while the metallic layer supports future route locating.
- Controlled buried-use structure: Typical 4 mil to 6 mil thickness gives the tape flexibility for installation and strength for backfill conditions.
- Metallic locating support: The internal metallic layer is typically 0.3 mil to 0.5 mil, helping form a detectable warning path above buried services.
- Utility color matching: APWA-style colors help separate electric, gas, water, sewer, communication, and reclaimed water routes.
- Cleaner field reading: Bold black print can be checked before production so the warning remains easy to read on site.
- Efficient roll supply: 1000 ft rolls are suitable for long pipeline, cable, and municipal trench projects.
- Practical sample checking:Typical factory checks can include tensile strength, elongation, moisture exposure, acid/alkali contact, slitting tolerance, and locating response.
Technical Data Sheet
Item | Typical Value |
Product Name | Metallic warning tape for buried utility caution |
Manufacturer | Caution Roll Company |
Main Use | Warning visibility and future locating above buried utility routes |
Film Material | PE or PP warning film |
Detectable Layer | Aluminum foil or metallic detectable layer |
Total Thickness | Typical 4 mil to 6 mil |
Metallic Layer Thickness | Typical 0.3 mil to 0.5 mil |
Standard Width | 2 in, 3 in, 4 in, 6 in |
Roll Length | 1000 ft standard roll, custom length available |
Color Options | Red, yellow, orange, blue, green, purple, custom color |
Color Reference | APWA-style utility color matching |
Printing | Bold black warning message for utility-specific identification |
Print Check | Print clarity can be checked before bulk production |
Tensile Strength | Typical factory test range 18 MPa to 28 MPa |
Elongation | Typical 250% to 450% |
Width Tolerance | +/- 2 mm typical slitting tolerance |
Roll Core | 3 in paper core or project-specified core |
Soil Moisture Resistance | Pass typical buried soil moisture exposure check |
Acid/Alkali Resistance | Suitable for common underground soil contact conditions |
Sample Locating Test | Available before bulk project supply |
Application Temperature | Typical -10 C to 60 C service environment |
Storage Condition | Store dry, away from direct sunlight before installation |
Product Overview
This underground utility caution tape is made for buried service identification, not for decorative, party, or reflective surface use. It is normally placed in the backfill above the service route, giving excavation crews a warning layer before the bucket, shovel, or boring work reaches the actual pipe or cable. Compared with ordinary non-detectable warning film, this metallic warning tape includes an internal detectable layer that can help crews follow the general buried route before deeper excavation begins.
For utility contractors and project engineers, the important details are not only color and roll size. The tape needs to stay visible in soil, carry readable black warning text, match the correct utility color, and provide a practical target for later maintenance checks. Caution Roll Company supplies utility-specific legends for electric line, gas line, water line, sewer line, communication line, pipeline, and other buried service messages. In most projects, shorter and bolder text works better than crowded wording because field crews must understand the warning quickly when the tape is exposed.
Standard 1000 ft rolls are useful for long trench runs because they reduce roll changes during continuous installation. Width selection should match the working environment. Narrower rolls are often used for compact or shallow routes, while wider tape is preferred for deeper burial zones, wider trenches, or projects that need stronger field recognition. Before bulk production, samples can be checked for color, print clarity, total thickness, width tolerance, and metallic layer locating response under selected project conditions.

Applications
- Buried pipeline route warning above service lines
- Underground electric cable identification during excavation work
- Gas and oil line caution marking where yellow utility color is required
- Potable water line and sewer line buried route marking
- Communication and fiber optic route identification with orange warning color
- Municipal trenching, roadwork, and maintenance projects using 1000 ft roll supply
- Industrial plant underground service marking where print readability matters
- Civil engineering projects requiring visible warning plus future locating support
What should be considered when selecting colors and printed warning text?
Color and print are not cosmetic details on buried utility warning tape. They are part of jobsite communication. APWA-style color options help field teams identify utility types quickly: red for electric lines, yellow for gas or oil pipelines, orange for communication routes, blue for potable water, green for sewer or drain lines, and purple for reclaimed water or irrigation. For bulk supply, sample rolls can be checked for color matching, print clarity, roll width, and +/- 2 mm typical slitting tolerance before production.

Packing Details

How does the metallic layer help crews find a buried utility route later?
The metallic layer gives the tape a detectable path above the buried service line. In a typical factory structure, the metallic layer is controlled around 0.3 mil to 0.5 mil and laminated with PE or PP warning film. When installed over a pipeline, electric cable, water line, gas line, or communication route, it sits between the surface and the protected utility as an early warning layer. Final locating performance depends on burial depth, soil condition, tape width, installation continuity, and the locating equipment used on site.
FAQ
Q1: Is this metallic warning tape installed above or below the utility line?
It is normally installed above the buried utility line within the backfill, so crews see the warning before reaching the pipe or cable.
Q2: What thickness is commonly used for this tape?
The typical total thickness is 4 mil to 6 mil, with a metallic detectable layer commonly controlled around 0.3 mil to 0.5 mil.
Q3: Which width is commonly used for buried utility projects?
3 in and 6 in are common choices. Wider tape is often selected for deeper burial, wider trench routes, or stronger field recognition needs.
Q4: Can samples be checked before bulk production?
Yes. Samples can be reviewed for color, printing, width, thickness, slitting tolerance, and metallic layer locating response before larger project supply.

