Skip to Content

Universal primers

CERESIT CT 7
GRUND UNIVERSAL

Ready-to-use primer for absorbent substrates, suitable for indoor and outdoor application before fixing ceramic tiles.

We have you covered

Product Description

CERESIT® CT 7 is used in preparation for priming absorbent substrates such as: concrete, traditional cement plasters and cement-lime, cellular concrete. The use of CT 7 is especially recommended for gypsum and aerated concrete substrates. CT 7 can be used inside and outside buildings, among others before fixing ceramic tiles, filling, applying putty, painting, wallpapering or fixing thermal insulation boards. Available pack size: 1 l and 5 l.

CERESIT CT 7 is a Universal primer for priming substrates before: fixing ceramic tiles and slabs, thermal insulation, painting, wallpapering, speckling. CT 7 improves significantly substrate adhesion, it is fast drying and eco-friendly.

CERESIT CT 7 is a preparation for priming absorbent, absorbent substrates such as: concrete, traditional cement plasters and cement-lime, cellular concrete. The use of CT 7 is especially recommended for gypsum and aerated concrete substrates. Also suitable for priming non-impregnated plasterboards.

Work should be carried out at ambient and substrate temperature from +5°C to +25°C and at air humidity below 80%.

Works Well With

  • Fallback Image

    Skim coats

    CERESIT CT 126

    Render and skim coat for levelling surfaces and filing irregularities between 2 and 10 mm and for obtaining smooth surfaces on indoor walls and ceilings. 

  • Fallback Image

    Skim coats

    CERESIT CT 127

    Finish skim coat for final smoothing, suitable foe indoor and dry areas, free of permanent humidity. 

  • Fallback Image

    Skim coats

    CERESIT IN 46

    White ready-to-use skimming coat to be used as the final finishing layer under paint coats and wallpapers. 

  • Fallback Image

    Flex adhesives (powder)

    CERESIT CM 16

    Tile adhesive mortar for ceramic tiles, suitable for wet areas, walls and floors, inside and outside. 

  • Fallback Image

    Flex adhesives (powder)

    CERESIT CM 17

    Premium, flexible tile adhesive with high adhesive strength for all kind of tiles on difficult substrates and for large tiles. 

  • Fallback Image

    Flex grouts

    CERESIT CE 40

    Water-resistant, flexible, grout mortar for porcelain, ceramic, glass, natural stones and marble tiles from 1 up to 8 mm width. 

  • Fallback Image

    JS - sanitary silicone

    CERESIT CS 25

    High quality water resistant silicone for sealing connection & expansion joints in sanitary facilities. 

  • Fallback Image

    1-component sealing (disp./cement.)

    CERESIT CL 51

    Flexible one-component sealing film for application under tiles and slabs, suitable for domestic wet areas indoors. 

  • Fallback Image

    Leveling compounds - thin layers

    CERESIT CN 69

    Self-levelling compound for medium traffic loads in 2 to 10 mm layer thickness for indoor application 

  • Fallback Image

    Universal primers

    CERESIT CT 17

    Primer for surface strengthening of all absorbent substrates for indoor and outdoor application, prior to fixing ceramic tiles, pouring floors or fixing thermal insulation boards. 

  • Fallback Image

    Flooring primers

    CERESIT CN 94

    Special primer for reliable bonding of floor levelling compounds, ceramic and natural stones on critical surfaces. 

  • Fallback Image

    Tiling - primers

    CERESIT CT 19

    Fast-acting special primer for a secure bond between ceramic coverings, natural stones, wall & floor screeding compounds and on difficult substrates. 

Looking to Upgrade?

  • Fallback Image

    Skim coats

    CERESIT CT 126

    Render and skim coat for levelling surfaces and filing irregularities between 2 and 10 mm and for obtaining smooth surfaces on indoor walls and ceilings. 

  • Fallback Image

    Skim coats

    CERESIT CT 127

    Finish skim coat for final smoothing, suitable foe indoor and dry areas, free of permanent humidity. 

  • Fallback Image

    Skim coats

    CERESIT IN 46

    White ready-to-use skimming coat to be used as the final finishing layer under paint coats and wallpapers. 

  • Fallback Image

    Flex adhesives (powder)

    CERESIT CM 16

    Tile adhesive mortar for ceramic tiles, suitable for wet areas, walls and floors, inside and outside. 

  • Fallback Image

    Flex adhesives (powder)

    CERESIT CM 17

    Premium, flexible tile adhesive with high adhesive strength for all kind of tiles on difficult substrates and for large tiles. 

  • Fallback Image

    Flex grouts

    CERESIT CE 40

    Water-resistant, flexible, grout mortar for porcelain, ceramic, glass, natural stones and marble tiles from 1 up to 8 mm width. 

  • Fallback Image

    JS - sanitary silicone

    CERESIT CS 25

    High quality water resistant silicone for sealing connection & expansion joints in sanitary facilities. 

  • Fallback Image

    1-component sealing (disp./cement.)

    CERESIT CL 51

    Flexible one-component sealing film for application under tiles and slabs, suitable for domestic wet areas indoors. 

  • Fallback Image

    Universal primers

    CERESIT CT 17

    Primer for surface strengthening of all absorbent substrates for indoor and outdoor application, prior to fixing ceramic tiles, pouring floors or fixing thermal insulation boards. 

  • Fallback Image

    Flooring primers

    CERESIT CN 94

    Special primer for reliable bonding of floor levelling compounds, ceramic and natural stones on critical surfaces. 

  • Fallback Image

    Tiling - primers

    CERESIT CT 19

    Fast-acting special primer for a secure bond between ceramic coverings, natural stones, wall & floor screeding compounds and on difficult substrates.