
Mapei · PrimerNo. 10 / 47
Primer G
Synthetic resin primer in water dispersion.
Synthetic resin primer in water dispersion with a very low content of volatile organic compounds (VOC).
- For treating gypsum surfaces prior to installing ceramic tiles
- As an anchoring coat for gypsum-based sprayable plasters
- To improve the adhesion of smoothing compounds on cementitious or anhydrite and gypsum-based surfaces
- To provide uniform absorption in cementitious or gypsum surfaces
- 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 anhydrite surfaces prior to applying cement-based products
- On gypsum walls as a fixative for wallpaper adhesives
- Consumption
- 0.08-0.15 kg/m²
- Pack we stock
- 25 kg
Coverage calculator
How much you need.
The arithmetic uses Mapei's published consumption for Primer G and the pack sizes we stock. Set your own wastage allowance.
You need
x 25 kg drum
- Data sheet quantity
- 1.6-3 kg
- With 10% wastage
- 1.76-3.3 kg
The figures behind it.
- Normal consumption is between 0.08 and 0.15 kg/m².
Consumption on site depends on the substrate, the tool and the applicator, which is why wastage is yours to set. The result is a quantity to plan and quote with, not a guarantee of coverage. Confirm the system against the current Mapei technical data sheet before ordering.
Application
Where it is used.
In Mapei's own words, from the technical data sheet.
- 01For treating gypsum surfaces prior to installing ceramic tiles
- 02As an anchoring coat for gypsum-based sprayable plasters
- 03To improve the adhesion of smoothing compounds on cementitious or anhydrite and gypsum-based surfaces
- 04To provide uniform absorption in cementitious or gypsum surfaces
- 05Preparing cement-based surfaces prior to smoothing with self-levelling or thixotropic smoothing compounds
- 06Between layers of smoothing compounds once the first coat is perfectly dry
- 07On anhydrite surfaces prior to applying cement-based products
- 08On gypsum walls as a fixative for wallpaper adhesives
Where it is not the right product.
- Primer G does not waterproof gypsum substrates even though it considerably reduces their porosity and absorption
- Do not apply onto magnesium substrates
- Primer G is not recommended for external applications or where rising damp is present
- Do not apply Primer G in such a quantity that it forms a surface film; dilute with water as appropriate for the absorption of the substrate
Specification
Technical data.
- GEV EMICODE · EC1 Plus - very low emission
- Consistency
- liquid
- Colour
- light blue
- Density (g/cm³)
- 1.01
- pH
- 8
- Dry solids content (%)
- 18
- GEV EMICODE (according to EN ISO 16000 - 3, 6, 9, 11 and CEN/TS 16516)
- EC1 Plus - very low emission
- Maximum VOC according to 2004/42/EC
- 0 g/l
- Application temperature range
- from +5°C to +35°C
- Drying time before the application of the levelling compounds or adhesive: - concrete
- 30 min
- gypsum
- 30-60 min
Typical values as Mapei prints them in data sheet edition 532-6-2025-gb. They are not a specification for your project: the current Mapei data sheet is.
On site
Packs, mixing and storage.
- We stock
- 25 kg
- Mapei packaging
- Primer G is available in 25, 10 and 5 kg plastic drums and in 1 kg bottles.
- Storage
- Primer G, in its original unopened packaging, can be stored for 12 months. Protect from frost.
Related products
Primers, Levelling & Wood Flooring.
Primer G in Tanzania
Tell us the area. We will quote the job.
Sahihi is an authorized Mapei distributor in Dar es Salaam. Send the quantity of Primer G you need, or describe the job and we will work it out with you.



