Flexible fire resistant special adhesive

HENSOMASTIK® K 2000 Class A Adhesive

Permanently flexible special adhesive, heat-resistant up to 750°C, for bonding fire protection boards with additional mechanical fixing, sealing in ventilation duct construction and as an installation aid for insulation.
£15.00
inc. VAT
(£12.5 ex. VAT)
📋
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Every order includes a bespoke Statement of Performance for your treated area.
Supplied to order
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✓ Supplied to order
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HENSOMASTIK® K 2000 Class A Adhesive
£15.00
Product Overview

What is this product?

Flexible fire resistant special adhesive

HENSOMASTIK K 2000 is a permanently flexible special adhesive, heat-resistant up to 750°C. It bonds fire protection boards with additional mechanical fixing, bonds and seals fire protection boards in ventilation duct construction, and is used as an installation aid for insulation materials.

Its high elasticity makes it suitable for joining materials with very different thermal expansion, such as fixing insulation between the outer and inner walls in railway carriage construction.

Where it is used

  • Non-combustible adhesive joints
  • Bonding fire protection boards to concrete or aerated concrete, with additional mechanical fixing
  • Bonding and sealing fire protection boards in ventilation duct construction
  • Joining materials with different expansion behaviour, for example in railway carriage construction
  • Installation aid for insulation materials

Product characteristics

  • Heat-resistant up to 750°C
  • Meets R1 HL3 requirements according to EN 45545-2:2016
  • Permanently elastic, does not become brittle
  • Solvent-free, organic
  • Colourless

Technical data

  • Application rate: 0.1 to 1.5 kg/m² (100 to 1,500 g/m²), depending on surface and purpose
  • Workability time: 15 minutes at 20°C and 65% relative humidity
  • Flash-off before joining: 8 to 20 minutes, depending on application rate
  • Drying time: approx. 24 hours at approx. 20°C and 60% relative humidity
  • Apply with a notched trowel, short pile roller or brush, or directly from the pail or cartridge
  • Ambient temperature above +5°C during application and drying
  • Supplied in 350 g cartridges and 20 kg plastic pails

Documents

Why choose this product?
  • ✓
    Heat-resistant up to 750°C
  • ✓
    Permanently flexible, does not become brittle
  • ✓
    Meets R1 HL3 to EN 45545-2:2016
  • ✓
    Solvent-free
  • ✓
    Joins materials with different thermal expansion
Technical Information

Specifications & Documents

Full technical data and downloadable certification for compliance records.

Finish Colourless
Application Method Notched trowel, short pile roller, brush, or directly from the pail or cartridge
Fire Classification Meets R1 HL3 according to EN 45545-2:2016
VOC Content Solvent-free
Shelf Life 12 months unopened
Using This Product

How to Apply

Simple application with standard tools — no specialist equipment required.

  1. 1
    Prepare surfaces for HENSOMASTIK K 2000
    Surfaces must be free of contamination. Ambient temperature above +5°C, substrate at least 3°C above dew point and above 0°C.
  2. 2
    Apply HENSOMASTIK K 2000
    Stir thoroughly. Apply with a notched trowel, short pile roller or brush, or directly from the pail or cartridge, at 100 to 1,500 g/m². When bonding materials of different densities, apply to the denser material.
  3. 3
    Join with HENSOMASTIK K 2000
    Allow 8 to 20 minutes flash-off depending on the amount applied, especially overhead or vertical, then join and press firmly. Workability time is 15 minutes at 20°C.
  4. 4
    Clean up after HENSOMASTIK K 2000
    If work stops for more than 20 minutes, clean tools immediately with water.
  5. 5
    Allow HENSOMASTIK K 2000 to dry
    Approx. 24 hours at approx. 20°C and 60% relative humidity.

Coverage Guide

Application rate 100 to 1,500 g/m²
Workability time 15 minutes at 20°C
Drying time approx. 24 hours
Common Questions

Frequently Asked Questions

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HENSOMASTIK K 2000 bonds fire protection boards with additional mechanical fixing, bonds and seals fire protection boards in ventilation duct construction, and is used as an installation aid for insulation materials.

It is heat-resistant up to 750°C.

It meets R1 HL3 requirements according to EN 45545-2:2016.

Yes. It is permanently elastic and does not become brittle, so it suits joining materials with very different thermal expansion.

0.1 to 1.5 kg/m² (100 to 1,500 g/m²), depending on the surface and purpose.

15 minutes at 20°C and 65% relative humidity. Allow 8 to 20 minutes flash-off before joining, then press firmly.

Approx. 24 hours at approx. 20°C and 60% relative humidity, depending on temperature, humidity and surface structure.

350 g cartridges and 20 kg plastic pails.

Customer Reviews

What Our Customers Say

Verified reviews collected via eKomi — independently moderated and genuine.

5.0
★★★★★
Based on 1,039 reviews
eKomi Gold Seal
  • ★★★★★

    Gave them a ring to ask for some advice, was pointed to exactly what I needed and how much. Arrived promptly and has performed perfectly.

    David H.
    Verified purchase · 2 weeks ago
  • ★★★★★

    Very quick response to query and fast delivery. Easy to use product with good instructions. Great company. Will use again.

    Sarah M.
    Verified purchase · 1 month ago
  • ★★★★★

    Excellent product with swift delivery. Easy to top up fire retardancy after the deck was cleaned. Looks completely untreated which was exactly what we wanted.

    Tom R.
    Verified purchase · 1 month ago