Mapei Mapefill GP

Non Hazardous
A general purpose non-shrink grout.
Available in 25 Kg
£20.34 £16.95
In stock
Product Description

Mapei Mapefill GP is a general purpose non-shrink grout which, when mixed with water is transformed into a very highly fluid grout without segregation that is able to fill intricate spaces.

Best Uses

Mapei Mapefill GP is recommended for grouting voids in structural elements. These include items such as grouting base plates and bridge bearings, anchoring of steel bars, concrete repairs and filling gaps in precast elements.

Some application examples:

  • Anchoring of mechanical equipments.
  • Filling of rigid joints between elements in concrete and precast concrete structures.
  • Execution of underpinning.
  • Pressure grouting of concrete structures.
  • Grouting of machine baseplate, bridge bearing.


Remove all deteriorated concrete down to a sound substrate. The substrate must be sound, clean, free of dust, grease, debris and laitance and sufficiently rough. Soak the sides of the cavity to be filled with water. Before pouring, remove all excess water. To facilitate the elimination of unabsorbed water, use compressed air if necessary.


Pour 80% of the required mixing water into a suitable rust free container and slowly add a 25 kg bag of MAPEFILL GP. Add the remaining water to achieve the desired mortar consistency (water ratios are 4 litres for ‘pumpable’ consistency; 4.5 for ‘pourable’ consistency). Mix for 1-2 minutes with a low speed mechanical mixer, then check that the mixture is well blended by removing any powder left on the sides of the mixer. Re-mix for another 2-3 minutes. Larger quantities can be mixed in a grout mixer.

The mix obtained remains workable for about 1 hour at +20°C.

Applying the grout

Pour the MAPEFILL GP mix from one side only into the prepared cavity or shutter in a continual flow in order to prevent the entrapment of air bubbles.

Technical Details


  • Excellent impermeability to water
  • Excellent adhesion to iron and concrete
  • Excellent resistance to dynamic mechanical stress
  • Modulus of elasticity and thermal expansion coefficient similar to those of high quality concrete
  • Mapefill GP does not contain metal aggregates and aluminium dust
  • Non-toxic
  • Non-corrosive
  • Chloride-free


  • Do not add cement or additives to Mapefill GP
  • Do not add water when the mix begins to set

Technical Info

Components: Single Pack
Type: Powder
Finish: -
Stock Colours: Grey
Tintable: No.
VOC Content: -
Dry Solids Content: 100%
Suitable Substrates: Conrete
Application Method: See Product Data Sheet
Theoretical Coverage: 13.5 litres per 25 kg bag
Wet Film Thickness (WFT): -
Dry Film Thickness (DFT): -
Induction Time: -
Pot Life: 60 Minutes
Touch Dry: -
Overcoatable: -
Fully Cured: -
Cleaner / Thinner: Fresh grout can be removed from tools with water
Shelf Life: 12 months if stored in dry sheltered place and unopened
Packaging: Available in 25kg bags

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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