Ecm Industries Llc LTW-400 Liquid Electrical Tape 4 Oz White

Product Description

The ECM INDUSTRIES LLC LTW-400 is a white, rubber-based liquid electrical tape formulated for waterproof insulation of wiring, cables, and electrical connections. It applies as a liquid coating and cures to a flexible, non-hardening film that resists brittleness and unraveling in extreme weather. Each coat applies at 5 to 7 mils thick and delivers a dielectric strength of 200 volts per mil. The rubber-based formula stays pliable over time, making it well suited for outdoor and underground applications where standard vinyl tape may crack or lose adhesion. Electricians and low-voltage technicians reach for this product when a conventional tape wrap is not practical or sufficient.

The LTW-400 is rated for both indoor and outdoor use, including direct burial and exposed exterior environments. Typical applications include insulating spliced cables, outdoor lighting connections, underground wiring junctions, alarm and security system wiring, and utility trailer harnesses. The waterproof coating seals out moisture and contaminants on contact, making it a reliable field solution when connections must hold up to rain, submersion, or temperature swings. It ships in a transparent plastic bottle for easy level monitoring during use.

Key Features

• Rubber-based coating remains flexible and will not harden, unravel, or become brittle in extreme weather
• Dielectric strength of 200 volts per mil provides strong insulation protection
• Applies at 5 to 7 mils per coat for controlled, buildable coverage
• Waterproof formula seals out moisture on cables, splices, and connectors
• Rated for indoor and outdoor use, including underground wiring applications
• Transparent plastic bottle allows easy product level visibility

Compatibility

Designed for use on electrical cables, low-voltage wiring, outdoor lighting connections, alarm and security system wiring, and utility trailer harnesses in both indoor and outdoor environments.

Installation Notes

Application should be performed by a qualified electrician or low-voltage technician following applicable NEC requirements. De-energize and lock out all circuits before applying coating to any wiring or connection. Allow each coat to cure fully before applying additional coats or restoring power. Avoid application over live conductors or in the presence of open flame or ignition sources.