MAPEI Primer G – Multi-Surface Primer for Better Tile & Floor Adhesion

Mapei

MAPEI Primer G – Multi-Surface Primer for Better Tile & Floor Adhesion

Price · incl. VAT
£18.50 - £40.50
Price · incl. VAT
£18.50 - £40.50
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1 KG In stock · only 1 left £18.50
5 KG In stock · only 1 left £40.50

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DELIVERY & RETURNS

 

* Kerbside Economy Service 3-5 Business days after your order

* Next Day | HIAB | Moffet ...etc services also available with an extra cost ''Click For More''

For returns, visit FAQ's.


About this product

Are you tiling onto plasterboard, gypsum, or cement surfaces? Do you need to improve adhesion, reduce dust, and prevent moisture problems? Primer G is a versatile, low-VOC primer that prepares and seals porous surfaces, ensuring your tiles, flooring, or wallpaper stick securely and last longer.

Why Use Primer G?

  • Better Adhesion: Creates a strong bond between the substrate and tile adhesive, smoothing compound, or wallpaper paste.

  • Reduces Porosity: Seals dusty or highly absorbent surfaces to prevent rapid drying and improve workability.

  • Prevents Chemical Reactions: Stops sulphates in gypsum from reacting with cement, which can cause failure and cracking.

  • Low Odour & Eco-Friendly: EMICODE EC1 Plus certified with very low VOC emissions—safe for indoor use.

  • Easy to Apply: Ready to use—just stir and apply with a brush or roller.

Ideal For:

  • Priming gypsum plaster, plasterboard, and anhydrite screeds before tiling

  • Sealing cementitious surfaces before applying self-levelling compounds

  • Preparing walls before wallpapering or painting

  • Improving adhesion between layers of smoothing compounds

  • Treating chipboard, cement fibre boards, and foamed concrete

How to Apply:

  1. Prepare the Surface: Clean, dry, and dust-free. Sand smooth/glossy surfaces if needed.

  2. Stir Primer G: Do not shake—stir gently before use.

  3. Dilute if Required:

    • For cement surfaces: Dilute 1:1 with water.

    • For gypsum surfaces: Use undiluted.

    • For wallpaper: Dilute 1:3 with water.

  4. Apply Evenly: Use a brush or roller to apply a thin, uniform coat.

  5. Let Dry: Allow 30–60 minutes before applying adhesive, levelling compound, or tiles.

Coverage & Packaging:

  • Coverage: 0.08–0.15 kg/m² depending on surface porosity

  • Available in: 1 kg, 5 kg, 10 kg, and 25 kg containers

  • Shelf Life: 12 months in original sealed packaging

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