Tesa 51036 High Heat PET Cloth Electrical Tape - Engine Harness

In this review of the Tesa 51036 PET cloth electrical tape the bottom line is simple: it is a purpose-built harness tape for anyone who needs durable, heat-resistant protection in engine compartments. The reviewer found it ideal for automotive technicians and DIYers who want a neat, factory-like finish while protecting wiring from abrasion, chemicals, and high temperatures. The pack of six rolls delivers long runs per roll and consistent adhesion, so it is best when longevity and a professional look matter more than cheap general-purpose electrical tape.

Key Features

• High temperature resistance: With a continuous range from -40C to 150C (302F) it holds to high engine temperatures for long periods without melting or softening.
• PET cloth backing: The cloth construction provides enhanced tear and abrasion resistance so wrapped harnesses resist chafing and mechanical wear.
• Advanced acrylic adhesive: The solvent-free acrylic adhesive stays sticky without leaving excessive residue and bonds well to cable insulation and loom surfaces.
• Chemical and flame protection: Flame retardant formulation and chemical/fluid resistance mean the tape endures oil, coolant splashes, and other common engine fluids.
• Generous roll length: Each roll measures 19mm x 25 meters (3/4' x 82 ft) and the six-roll pack provides plenty of material for multiple harness runs or projects.
• Engine compatibility: The tape is suitable for use on Mercedes, BMW, Audi, VW, Porsche and similar engine environments where a clean, factory-style finish is expected.

Who It's For

The Tesa 51036 is aimed at automotive technicians, restoration hobbyists, and serious DIYers who need reliable high heat tape for engine compartments and other high temperature areas. It is particularly useful when you want a neat, professional harness wrap that also resists oil, coolant, and abrasion.

Those who should look elsewhere include users seeking a general-purpose household electrical tape or a low-cost short-term fix for indoor wiring; the Tesa tape is specialized for automotive and industrial exposures rather than light indoor use.

Pros & Cons

Pros

• Strong adhesion with a clean, factory-like finish that customers praised for appearance and stickiness.
• Excellent abrasion and chemical resistance makes it durable in engine bays and marine environments.
• High temperature tolerance that holds up to prolonged 150C exposure for sustained protection.
• Six rolls at 25 meters each offers good value for multiple projects or professional use.

Cons

• Not intended as a substitute for insulating tape on low-voltage indoor wiring; it is specialized for harness protection.

Specifications

Product	Tesa 51036 PET cloth wire harness tape
Temperature range	-40C to 150C (302F)
Roll size	19mm x 25 meters (3/4' x 82 ft)
Quantity	6 rolls per pack
Adhesive	Solvent-free advanced acrylic
Key properties	Flame retardant; chemical and abrasion resistant

Our Verdict

The Tesa 51036 harness tape is a practical choice for anyone who wants long-term, heat-resistant protection and a professional appearance on wiring and cable looms. Its combination of high temperature resistance, abrasion durability, and ample roll length makes it good value for automotive, marine, and industrial projects where reliability matters.

Frequently Asked Questions

Can this tape be used in direct contact with engine headers?
It is rated to 150C continuous and resists high heat for extended periods, but direct contact with components above that temperature may reduce service life.

Will the adhesive leave residue if removed?
The solvent-free acrylic adhesive is designed to bond without excessive residue, and most users report clean removal compared with low-cost tapes.

Is this suitable for marine and RV wiring?
Yes; the tape's chemical, fluid, and abrasion resistance make it suitable for cars, trucks, RVs, boats, and similar applications.