Powerjoint POWERJOINT RT3339 RUBBER MASTIC 38X3M T030206RM38

Description

Reliable Electrical Insulation for Trade Applications

The Powerjoint RT3339 Rubber Mastic Tape is manufactured using an Ethylene Propylene Rubber (EPR) backing bonded to a tacky, temperature-stable electrical-grade mastic. Designed for primary insulation applications up to 2kV, this rubber mastic tape delivers dependable electrical performance across a wide range of installations.

Its self-bonding construction creates a tight seal around cables, joints, and terminations, helping electrical contractors complete installations efficiently while maintaining insulation integrity. Suitable for both planned maintenance and emergency repairs, the tape offers reliable performance in demanding environments.

Superior Adhesion and Flexible Sealing Performance

Built for professional use, the Powerjoint RT3339 electrical mastic tape provides excellent adhesion to irregular surfaces and cable components. The flexible EPR backing conforms easily around connections, creating a durable moisture-resistant barrier that supports long-term reliability.

Whether used in switchboards, cable joints, or general electrical maintenance, this self-fusing insulation tape helps reduce installation time while delivering consistent results. Its temperature-stable mastic compound maintains performance across varying site conditions commonly encountered on Australian projects.

Trusted by Electricians Across Australia

Electrical professionals rely on quality materials to keep projects moving and minimise downtime. The Powerjoint RT3339 rubber mastic tape offers a practical solution for contractors, maintenance teams, and procurement specialists seeking dependable insulation products at competitive trade pricing.

Available through iSupply Electrical, trade customers benefit from access to thousands of electrical products, convenient online ordering, and fast Australia-wide delivery. Backed by trusted suppliers and designed for professional applications, this insulation tape is an essential addition to any electrician’s toolkit.

Key Specs

• Brand: Powerjoint
• Model: RT3339
• Part Number: T030206RM38
• Material: Ethylene Propylene Rubber (EPR) with electrical-grade mastic
• Tape type: Self-bonding rubber mastic tape
• Dimensions: 38mm width × 1.65mm thickness × 3m length
• Primary insulation rating: Up to 2kV
• Armoured: No

Ideal For

• Licensed electricians
• Electrical contractors
• Building maintenance teams
• Commercial and industrial installations
• Cable joints and terminations
• Electrical repair and maintenance work