3M 7000133584 Adhesive-lined Heat Shrink Tubing 3/4 in 48 in

Product Description

The 3M 7000133584 is an adhesive-lined, thin-wall heat shrink tubing constructed from flame-retardant flexible polyolefin with an internal layer of thermoplastic adhesive. The heat-shrinkable outer wall is selectively radiation cross-linked, giving it dimensional stability and reliable recovery. The inner adhesive layer maintains high flow during shrink, creating a moisture-resistant, environmentally sealed bond around splices, terminations, and wire bundles. At 3/4 inch diameter and 48 inches in length, this tubing suits a wide range of wire and connector sizes used across electrical and electronic assembly work. Licensed electricians and automotive harness technicians are the primary installers.

This tubing is designed for environmental protection and insulation of electronic components, twisted pigtail and inline wire splices, crimp splices, wire bundles, and wire harness breakouts. Primary application areas include automotive, truck fleet, marine, and industrial environments where exposure to moisture, vibration, and contaminants demands a sealed, durable sleeve solution. The flexible polyolefin construction accommodates irregular geometries and tight routing paths common in harness work. It meets application specification MIL-I-23053/4, Class 3, making it appropriate for mil-spec-adjacent commercial and fleet maintenance applications.

Key Features

• Flame-retardant flexible polyolefin outer wall with selectively radiation cross-linked structure for consistent shrink recovery
• Internal thermoplastic adhesive layer flows during shrink to seal against moisture and environmental ingress
• Meets MIL-I-23053/4, Class 3 application specification
• 48-inch length suits both full-length harness runs and field-cut sections
• Black color standard; 3/4 inch recovered diameter covers a broad range of wire bundle and connector sizes
• Suitable for automotive, truck fleet, marine, and industrial splice and harness protection

Compatibility

Designed for use with electronic components, crimp splices, inline wire splices, twisted pigtail splices, wire bundles, and wire harness breakouts in automotive, truck fleet, marine, and industrial applications meeting MIL-I-23053/4, Class 3 requirements.

Installation Notes

Installation is performed by licensed electricians, automotive harness technicians, or qualified electrical assemblers. De-energize all circuits completely before applying heat shrink over any splice or termination. Use a calibrated heat gun set to the appropriate temperature range for polyolefin tubing; open flame is not recommended as it risks uneven shrink and material damage. Ensure the adhesive has fully flowed and the tubing has recovered uniformly around the substrate before returning the assembly to service.

Technical Specifications

• Diameter: 3/4 inch
• Length: 48 inches
• Material: Flame-retardant flexible polyolefin with internal thermoplastic adhesive lining
• Color: Black
• Weight: 0.24 pounds
• Application Specification: MIL-I-23053/4, Class 3
• Minimum Order Quantity: 5
• UPC: 00051128597323

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000133584