Mapei Primer G

£24.69£105.61 exl. VAT

Per Unit


Synthetic Resin-Based Water Dispersion Primer With Very Low Volatile Organic Compound.

  • Improves adhesion
  • Prevents chemical reactions
  • Good resistance to moisture
  • Good flexibility

*Please note there is a £100 minimum order when ordering Mapei products.*

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Mapei Primer G – Synthetic-resin-based water-dispersion primer

Mapei Primer G – Synthetic-resin-based water-dispersion primer  which, once applied to any surface, dry to form a flexible, compact, shiny coating which consolidates the surface, where needed. Primer G also improves the adhesion of smoothing compounds, paint, adhesive for wall paper, adhesive for tiles and mortar for renders. The film of Primer G on the surface of gypsum or cement, prevents any chemical reaction between sulphates and the cement alluminates of the tile adhesives which, in the presence of moisture, leads to the formation of the salt “ettringite’’ which is the cause of tiles breaking away from gypsum substrates. Primer G makes wallpaper stripping far easier and decreases the amount of glue used for paperhanging. When used before applying sprayable plasters, Primer G prevents over-rapid absorption of water by the substrate, prolongs finishing time and helps prevent shrinkage cracks. When used before the application of self-levelling compounds, Primer G reduces the formation of air

Mapei Primer G Uses

Some application examples include:
• Preparing cement-based surfaces prior to smoothing with self-levelling or thixotropic smoothing compounds.
• Between layers of smoothing compounds once the first coat is perfectly dry.
• On gypsum plasters prior to smoothing with cementitious products.
• On anhydrite surfaces prior to applying cement based products.
• On cementitious renders prior to smoothing with gypsum based products.
• On gypsum walls as a fixative for wallpaper adhesives.
• Before installing ceramic tiles with cementitious adhesives on:
– gypsum plasters and sprayed gypsum;
– prefabricated gypsum panels;
– fibrous-gypsum panels;
– anhydrite screeds.
• Treating gypsum walls, chipboard, cement fibre boards, foamed concrete, renders etc. prior to papering or painting.


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Additional information


5Kg, 25Kg



Since its beginnings in 1937 Mapei has grown so that it can now claim to be the worlds largest producer of adhesives and chemicals for the construction industry. The company has always believed in investing strongly in R&D and product development, and it is perhaps this more than anything that has led to their success. Mapei has been in the UK since 1989 with a manufacturing plant now producing over 100,000 tonnes across a vast product range.

Technical Information