Supertape ST421 textile adhesive tape – Professional duct tape grey 50 m × 48–50 mm

✔ Extremely high adhesive strength & shear strength – reliable hold on smooth and rough surfaces
✔ Professional duct tape for construction sites & crafts – ideal for fixing, repairing and fastening
✔ Tearable by hand & moisture-resistant – quick to use indoors and outdoors
✔ Removable without residue – cleanly detachable despite strong adhesion
✔ Solvent-free synthetic rubber adhesive – powerful and versatile

Strong textile adhesive tape for professional applications

Supertape ST421 Duct Tape is a high-quality textile adhesive tape for professional use in the construction, plumbing, heating, air conditioning, and ventilation sectors . Its very high initial tack and permanent adhesive strength make it ideal for fastening, sealing, bundling, or temporarily fixing materials.

Particularly practical: Despite the strong adhesion, the tape can be removed cleanly if necessary , without leaving any annoying adhesive residue.

Reliable grip on many surfaces

Thanks to the combination of LDPE film and polyester fabric (Mesh 26), the tape offers high stability and flexibility for roofing applications . It adheres securely to:

• smooth surfaces such as metal or plastic
• rough surfaces such as masonry or stone
• technical equipment and installations
• Construction materials of all kinds

This makes it a versatile helper for assembly, repair and installation.

Technical details

• Product: Duct Tape ST421 Supertape
• Color: Grey
• Length: 50 m
• Width: approx. 48–50 mm
• Thickness: 220 µm
• Carrier: LDPE film + polyester fabric
• Mesh size: 26 mesh
• Adhesive: solvent-free synthetic rubber

Performance data:

• Adhesive strength on PE: 12 N/25 mm
• Adhesive strength on steel: 28 N/25 mm
• Adhesive strength on stone (23 °C): 17 N/25 mm
• Static shear resistance: >168 h
• Rolling Ball Tack: <1 cm
• Tensile strength: 105 N/25 mm
• Temperature resistance: -10 to +75 °C

Characteristics:

• Suitable for smooth and rough surfaces
• Removable without residue
• moisture-resistant
• Tearable by hand

Typical areas of application

• On-site assembly and repairs
• Securing foils, tarpaulins or protective material
• Sanitary, heating and ventilation installations
• Bundling, marking or sealing
• temporarily fixing materials to walls

Who is the ST421 suitable for?

For roofers, construction companies, installers, fitters and tradesmen who need a strong adhesive, versatile and professional textile tape.

Now available in the roofing shop at Roofify – your roofing partner for construction site supplies, fastening technology and professional accessories.