Primer PU is for consolidating and improving the characteristics of weak, crumbly or powdery surfaces. It is also suitable for outdoor use for consolidating the surface of concrete slabs, screeds, renders, bricks, sandstone, tuff, cement and lime-based decorative mortar.
· For treating gypsum surfaces before installing waterproofing products.
· As an anchoring coat for gypsum-based spray plasters.
· To improve bonding of smoothing compounds on cementations or anhydrite and gypsum-based surfaces.
· To provide uniform absorption in cementations or gypsum surfaces.
The substrate should be dry, clean, and free from grease, oils, residual paint, and other loose material. In each case, the manufacturer’s recommendations for gypsum-plaster must be followed, particularly as far as moisture content and level of surface finishing are concerned. Cracks in concrete surfaces must be repaired with Epoinject. Anhydrite surfaces must be sandpapered.
Ready to be used.
Stir the PRIMER PU before use; spread it uniformly on the surface with a flat brush or roller without diluting it. If the gypsum plaster surface is particularly smooth and glossy, it is recommended to rub it beforehand. Once it has dried, install the tiles.
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Primer PU