Kerakoll Bio Gel Extreme Adhesive

Kerakoll Bio Gel Extreme Adhesive

£56.00 £36.00 £43.20 inc. VAT

Highly deformable and workable, Hybrid Gel Adhesive®, bonds everything, even glass & metal. It is tested under the most extreme working conditions. Eco-friendly. Ideal for use in GreenBuilding.

Product Description

Kerakoll Bio Gel Extreme

The ‘Super glue’

Highly deformable and workable, Hybrid Gel Adhesive®, bonds everything and is tested under the most extreme working conditions. Eco-friendly. Ideal for use in GreenBuilding.

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Additional Information

Weight 10 kg





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Features and Advantages

  • Very fast bonding
  • Long open time
  • Shape memory
  • Water resistant
  • Easy to spread
  • High and low thickness
  • Maximum deformability
  • Full wettability
  • No shrinkage
  • Structural adhesion
  • Distributes tensile strength
  • Increases the performance
  • Transfers the forces
  • Absorbs dynamic loads
  • Eliminates the risk of frost

Area of use


  • Existing Tiles
  • Heating Systems
  • Cement-based Screeds
  • Asphalt Screeds
  • Concrete
  • Plasterboard
  • Fibro-cement Slabs
  • Gypsum And Anhydrite
  • Cellular Concrete
  • Brick
  • Lime And Cement-based
  • Plasters/renders
  • Thermal Insulation
  • Panelling Systems
  • Insulating Panels
  • Impact Noise Insulation
  • Sheets
  • Cracked Screeds
  • Uncured Damp Screeds
  • Wood – Metal – Sheet Metal
  • Rubber Floors – Pvc


  • Porcelain tiles
  • Laminated stoneware
  • Porcelain tile with resin back
  • Very large formats
  • Low thickness slabs
  • Ceramic tiles
  • Marble – natural stone
  • Marble with resin back
  • Recomposed materials
  • Cement-based recomposed
  • Materials
  • Glass mosaics
  • Glass tiles
  • Thermal and acoustic
  • Insulation
  • Terracotta – klinker
  • Metal tiles


  • Adhesive And Finishing
  • Interior Waterproofing product
  • Floors And Walls
  • For Internal Use – External
  • Overlaying
  • Terraces And Balconies
  • Facades
  • Swimming Pools and Fountains
  • Saunas And Spa
  • Domestic
  • Commercial
  • Industrial
  • Street Furniture

Instructions for use

Preparation of the substrate:

Substrates must comply with BS 5385, parts 1-5, be flat, compact, free from with no loose flaky parts, resistant, free from any debonding agents, dust and moisture rising. Anhydrite substrates must have a residual humidity ≤ 0,5 CM-%. Cement-based screeds must have a residual humidity ≤ 2 CM-%. Anchored substrates must comply with BS 8204 and in anhydrite must have a residual humidity ≤ 0,3 CM-%.

Adhesive preparation:

Single Pack: Part B is found inside the pack. Respect the preset ratio of 8.6 : 1.4. Remix part B into the bucket containing part A, being careful to mix the two parts uniformly until a smooth, even coloured mixture is obtained. Packs of Biogel® Extreme® must be stored at a temperature of ≈ +20 °C for at least 2/3 days prior to use.


Biogel® Extreme® can be applied with a suitable toothed spreader, to be chosen according to the size and type of the tile. Using the smooth part of the spreader, apply a fine layer of product, pressing down onto the substrate in order to ensure maximum adhesion. Press down each tile to allow for maximum coverage of the surface. To guarantee structural adhesion it is necessary to apply a layer of adhesive sufficient to cover the entire back of the coating material. Large, rectangular sizes with sides > 60 cm and low thickness sheets may require adhesive to be applied directly to the back of the material. Check samples to make sure the adhesive has been transferred to the back of the material.

Create elastic expansion joints:

– ≈ 10 m2 in external applications,
– ≈ 25 m2 in internal applications,
– every 8 metres in long, narrow applications.

Respect all structural, fractionizing and perimeter joints present in the substrates.


Clean the tools and any residues of Biogel® Extreme® from the coated surfaces using water while the adhesive is still fresh. Once hardened, the adhesive can only be removed mechanically or using Fuga-Shock Eco cleaner.

Technical Data Sheet

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