Self Amalgamating Tapes

Self amalgamating tapes are a non-tacky, silicon rubber tape that will bond or fuse to itself when stretched. These tapes offer seamless bonding and can be waterproof and electrically insulating. These tapes do not contain any glue or adhesive ingredients.

Amalgamating means combined so self amalgamating means these tapes will combine themselves to provide a strong, seamless, rubbery, waterproof electrical insulation layer around cables and cable joints. The bonding occurs when the tape is wrapped around wires, devices or cables through a process called self-fusing. Due to the absence of gum, self amalgamating tapes are easy to clean or remove from product material.

What are self amalgamating tapes used for?

The tape has thermal conductivity features if made with iron oxide, which is used for wrapping and sealing wires and cables. The product is non-flammable and is often applied in the aviation and aerospace industries.

Self amalgamating tape can also be used to repair holes and leaks in hoses and pipes. It is often applied to moisture sealing joints for insulation purposes, or used to seal splices and connections in electrical cables with high voltages.

Types of self amalgamating tape

Various forms of self amalgamating tape exist in various colours, most commonly black, and various mm widths. These can be made from ethylene propylene rubber (EPR), silicone or polyisobutylene (PIB).


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Description Price Backing Material Width Length Thickness Colour Adhesion Strength Tensile Strength Maximum Operating Temperature Breakdown Voltage Minimum Operating Temperature Model Number
RS Stock No. 146-9002
BrandRS PRO
£16.76
Each
Units
Rubber 38mm 10m 1mm Black - - +80°C - -30°C -
RS Stock No. 146-8998
BrandRS PRO
£6.72
Each
Units
Polyisobutylene 25mm 10m 0.5mm Black - - +100°C - -30°C -
RS Stock No. 146-8999
BrandRS PRO
£13.13
Each
Units
- 50mm 10m - - - - - - - -
RS Stock No. 146-9001
BrandRS PRO
£8.28
Each
Units
Rubber 38mm 1.5m 3mm Black - - +80°C - -30°C -
RS Stock No. 146-9000
BrandRS PRO
£8.38
Each
Units
- 19mm 10m 0.5mm Grey - - +130°C - -35°C -
RS Stock No. 192-1605
Mfr. Part No.SCOTCH 23 9.15X19
Brand3M
£11.51
Each
Units
EPDM 19mm 9m 0.76mm Black Non-adhesive 14N/cm +90°C - -18°C Scotch® 23
RS Stock No. 494-433
Mfr. Part No.AT87
£6.75
1 Reel of 10 Metre(s)
Reel(s)
Polyisobutylene 25mm 10m 0.5mm Black Non-adhesive 20N/cm +100°C 8500V -30°C -
RS Stock No. 494-427
£8.59
1 Reel of 10 Metre(s)
Reel(s)
Polyisobutylene 19mm 10m 0.5mm Black Non-adhesive 20N/cm +100°C 8500V -30°C AT87
RS Stock No. 227-2932
£8.21
1 Reel of 10 Metre(s)
Reel(s)
PE 25mm 10m 0.5mm Black Non-adhesive 12N/cm +130°C 17000V -35°C AT85
RS Stock No. 494-461
Mfr. Part No.AT79
£8.40
1 Reel of 10 Metre(s)
Reel(s)
PE 19mm 10m 0.75mm Black Non-adhesive 12N/cm +130°C 25500V -35°C AT79
RS Stock No. 763-9052
Mfr. Part No.4600 3mx25mm
BrandTesa
£9.02
Each
Units
Silicone Rubber 25mm 3m 0.5mm Black - 33N/cm +260°C 8000V -60°C 4600
RS Stock No. 494-449
Mfr. Part No.AT87
£13.20
1 Reel of 10 Metre(s)
Reel(s)
Polyisobutylene 50mm 10m 0.5mm Black Non-adhesive 20N/cm +100°C 8500V -30°C -
RS Stock No. 494-455
Mfr. Part No.AT7
£8.40
1 Reel of 10 Metre(s)
Reel(s)
PE 19mm 10m 0.5mm Black Non-adhesive 12N/cm +130°C 17000V -35°C -
RS Stock No. 763-9059
Mfr. Part No.4600 3mx25mm
BrandTesa
£9.29
Each
Units
Silicone Rubber 25mm 3m 0.5mm Transparent - 33N/cm +260°C 8000V -60°C 4600
RS Stock No. 227-3014
£15.58
1 Reel of 10 Metre(s)
Reel(s)
PE 50mm 10m 0.5mm Black Non-adhesive 12N/cm +130°C 17000V -35°C AT85
RS Stock No. 832-6414
Mfr. Part No.VST 9130 19mm x 100m
BrandHi-Bond
£51.68
Each
Units
Acrylic Foam 25mm 100m 0.13mm Transparent 7.8 N/cm ≥5500g/cm² +250°C - -40°C VST 9130
RS Stock No. 832-6423
Mfr. Part No.VST 9130 25mm x 100m
BrandHi-Bond
£68.00
Each
Units
Kraft Paper 25mm 100m 0.13mm Transparent ≥2000 g/25 mm ≥5500g/cm² +250°C - -40°C VST 9130
RS Stock No. 703-1250
Mfr. Part No.3-2042-00-13
BrandRaytech
£54.67
Each
Units
Silicone Rubber 25mm 9.1m 0.51mm Grey - - +180°C - - -
RS Stock No. 832-6426
Mfr. Part No.VST 9130 50mm x 100m
BrandHi-Bond
£133.33
Each
Units
Kraft Paper 50mm 100m 0.13mm Transparent ≥2000 g/25 mm ≥5500g/cm² +250°C - -40°C VST 9130
RS Stock No. 194-5899
Mfr. Part No.Teroson RB81 60x2mm
BrandTeroson
£76.40
Each
Units
Butyl Rubber 60mm 20m 2mm Black - - +80°C - -40°C -
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