Anti Leak Silicon Tape

Suitable for plumbing and marine applications. Wide temperature range from -45°C to 200°C.

Product decription

MF50 Anti Leak is a self-fusing silicon tape for emergencies and all-purpose repairs. MF50 can be applied on a wide range of surfaces and is versitile in use, including leaking pipes and hoses, electrical connections, cables, hand tool handles and much more. Anti Leak Tape is resistant to UV, fuel, water, oils, acids and wide range of solvents.

Physical properties

Material Type Silicone rubber
Liner PE film
Thickness 0,5 mm
Temperature range – continuous -45°C to 200°C
Temperature range – intermittent -65°C to 260°C
Specific Gravity 1,25 g/ml
Tensile Strength 700 psi min
Elongation 400% min
Dielectric strength 400 Vpm min
Volume resistivity 1 x 1013 OHMs/cm
Pressure resistance Approximately 10 – 12* bars
IMPA code 81 21 75**


Product code: Tape dimension Weight Amount in a box
MF50-25 25 mm x 5m 90 g 24 rolls
MF50-38 38 mm x 5m 130 g 16 rolls
MF50-50 50 mm x 5m 170 g 12 rolls

How it works

The tape creates a permanent air-tight and water-tight seal immediately after application. It ensures anti-corrosive and electrical protection. It is very easy to remove and leaves no sticky residue.

Installation instructions

  • Clean the surface from dirt, oil etc. before the application.
  • Attach the beginning of the tape close to the damaged area and start wrapping around (with tension).
  • Keep stretching the tape until a 50% overlap is achieved. Once overlapped, the tape will fuse.
  • Finish the wrapping around the problem area and press the tape firmly into place.
  • For high pressure leaks, additional wrapping may be required. Most hose repairs can be repaired with 3-5 layers by wrapping 3 to 5 inches in each direction away from the leak point; however, additional strength can be added simply by wrapping more layers of the MF50 tape.
  • For electrical wiring, it is not necessary to stretch tightly. In fact, it will be more resilient to abrasion when it is not stretched too tightly.

    Cut the tape using scissors or knife.

Maintenance and storing

Shelf life of MF50 is at least 5 years from date of dispatch by Mareflex, when stored in the original box at 21°C and 50% relative humidity.

Product video

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