Mapei Primer G Synthetic Resin Primer Primer G is a synthetic resin-based primer which once applied to any surface dries 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 aluminates of gypsum which in the presence of moisture leads to the formation of the salt "ettringite" which is the cause of the separation of the two elements. The use of Primer G when papering allows to reduce the substrate's absorption and as a result the amount of glue used thus making the wallpaper removal much easier. When used before applying sprayable plasters Primer G prevents over-rapid absorption of water by the substrate prolongs workability time and helps prevent shrinkage cracks. When used before the application of self-levelling compounds Primer G reduces the formation of air bubbles and helps prevent over-rapid drying making self-levelling easier. Primer G is not flammable and can therefore also be used in closed unventilated environments without any precautions having to be taken.

BENEFITS:

- Dries to form a flexible compact shiny coating which consolidates the surface

- Improves the adhesion of smoothing compounds paint adhesive for wall paper adhesive for tiles and mortar for renders

- Prevents any chemical reaction between sulphates and the cement aluminates of gypsum

- Reduces the amount of glue used when wallpapering

- Prevents over-rapid absorption of water by the substrate prolongs workability time and helps prevent shrinkage cracks

- Reduces the formation of air bubbles and helps prevent over-rapid drying making self-levelling easier

RECOMMENDED FOR:

- 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

- Treating gypsum walls chipboard cement fibre boards foamed concrete renders etc. prior to papering or painting

- On gypsum walls as a fixative for wallpaper adhesives

- On cementitious renders prior to smoothing with gypsum-based products

- On anhydrite surfaces prior to applying cement-based products

- On gypsum plasters prior to smoothing with cementitious products

- Between layers of smoothing compounds once the first coat is perfectly dry