SIGA Fentrim 20 135mm (50/85mm) - Pre-Folded Adhesive Tape for Interior Airtight Sealing - 25m roll - Box of 6 rolls

SIGA Fentrim 20 135mm (50/85mm) - Pre-Folded Adhesive Tape for Interior Airtight Sealing - 25m roll - Box of 6 rolls
SIGA Fentrim 20 135mm (50/85mm) - Pre-Folded Adhesive Tape for Interior Airtight Sealing - 25m roll - Box of 6 rolls
Guide Price
SIGA Fentrim 20 135mm (50/85mm) - Pre-Folded Adhesive Tape for Interior Airtight Sealing - 25m roll - Box of 6 rolls
SIGA Fentrim 20 135mm (50/85mm) - Pre-Folded Adhesive Tape for Interior Airtight Sealing - 25m roll - Box of 6 rolls
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SIGA Fentrim 20 135mm (50/85mm) - Pre-Folded Adhesive Tape for Interior Airtight Sealing - 25m roll - Box of 6 rolls
Guide Price: £419.48 (£503.38 inc VAT)
  • Product Code: A1-7628
  • Delivery Time: 3 - 5 days
  • Brand: SIGA
  • Model: 135mm x 25m roll - Box of 6 rolls
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SIGA Fentrim 20 135mm (50/85mm) - Pre‑Folded Adhesive Tape for Interior Airtight Sealing - 25m roll - Box of 6 rolls

Length: 25000mm
Width: 135mm
Pack Quantity: 6
Fire Rating (Reaction to Fire): E

SIGA Fentrim 20 135mm (50/85mm) is a pre‑folded, single‑sided airtight sealing tape designed for fast, reliable interior sealing of window and door frames, junctions, and structural connections. Its split‑width format allows clean detailing on both the frame and adjacent building components, ensuring long‑term airtightness in modern insulated constructions. Fentrim 20 is engineered for interior airtightness at window and door interfaces, where precise detailing is essential. The tape is pre‑creased, enabling quick and accurate installation along frame edges, reveals, and connection joints.

Its high‑performance acrylic adhesive ensures durable bonding on a wide range of substrates, including timber, concrete, masonry, steel and rigid plastics. The tape is non‑toxic, solvent‑free, and fully compatible with SIGA airtightness membranes and vapour control layers such as Majpell and Majrex. Fentrim 20 offers fast installation, precise detailing, and long‑term airtightness, making it a preferred choice for interior window and door sealing. Its pre‑folded design and strong adhesive ensure reliable performance even in complex junctions.

CHARACTERISTICS

  • Pre‑folded design - enables fast, precise installation at window and door junctions.
  • Split‑width 50/85mm format - ideal for bonding both the frame and adjacent building components.
  • Strong acrylic adhesive - ensures durable, airtight bonding on multiple substrates.
  • Airtight sealing - prevents uncontrolled air leakage and improves energy efficiency.
  • Flexible backing - conforms to uneven surfaces and movement‑prone junctions.
  • Non‑toxic & solvent‑free - safe for installers and occupants.
  • Compatible with SIGA membranes - ideal for interior airtightness systems.

APPLICATION

  • Interior sealing of window frames
  • Airtight detailing of door frames
  • Bonding frame‑to‑wall junctions
  • Sealing reveals and connection joints
  • Timber‑frame and steel‑frame airtightness
  • Low‑energy and Passivhaus construction
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