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ATLAS UNI-GRUNT – Quick Drying Primer – Bulk Buy


ATLAS Uni-Grunt Primer

a fast drying priming emulsion

ATLAS UNI GRUNT is an impregnating sealer for priming, manufactured on the basis of the finest quality water dispersion of polymer resins.

  • reinforces absorptive substrates of any type
  • high yield, quick-drying
  • decreases and unifies substrate absorptiveness
  • application in temperature up to +30°C
  • improves bonding to the substrate
  • under floors and screeds, adhesives, plasters, top finishes, paints

You can add this product to your order, however there must be a pallet/half/three-quarter-pallet in the cart to checkout.

Need a custom deal? 0333 344 2655 or info@buythepallet.co.uk

£12.07£19.99 +VAT

£12.07 +VAT
£19.99 +VAT

ATLAS UNI-GRUNT – Fast Drying Priming Emulsion (Primer)


The average consumption is 0.05 ÷ 0.2 kg of emulsion for 1 m2. In practice, the consumption depends on the substrate absorptiveness.


Very short time of drying – depending on temperature and air humidity, ap- plication of next layers on a primed substrate is possible after:

– 15 minutes – for adhesive mortars ATLAS and painting coats on cement-lime plasters, silicate hollow blocks and aerated concrete blocks,

– 2 hours – for floors and self-levelling screeds.

Reinforces top surface of primed mineral substrates – penetrates into material structure, reinforces it and improves its load-bear capacity.

Improves yield of paints, top finishes and adhesives – increases yield of ma- terials used for the next layer application, reduces their consumption by sealing structure of a primed substrate.

Facilitates application of the next layers – painting coats, adhesives, top finishes and fillers, floors and self-levelling screeds, adhesives for carpets, wallpapers, adhesives for thermal insulation etc.

Decreases substrate absorptivity – prevents from excessive water retention from the product applied on the primed substrates: cement screeds with or without floor heating, various types of renders etc.

Unifies substrate absorptivity – owing to the presence of ATLAS UNI-GRUNT, product applied as the next layer has uniform setting conditions on the whole surface, including areas with local repairs.

Bonds non-stable substrates – reduces dust on floors, screeds and plasters. Intended for application at high temperature – recommended for use at tem- perature from 5°C up to 30°C, indoors and outdoors.

Very low VOC content – 15-times reduced content of volatile organic com- pounds in terms of legal requirements.
Transparent, solvent-free and water-soluble – product is colourless after drying, does not cause substrate discolouration.

For application with a roller, a brush or with a sprayer.



Substrate-type – standard

cement floors and screeds+
anhydride screedsrecommended ATLAS UNI-GRUNT PLUS
cement and cement-lime plasters and top finishes+
gypsum plasters and top finishesrecommended ATLAS UNI-GRUNT PLUS
walls made of cellular concrete+
walls made of brick or silicate blocks+
walls made of brick or ceramic hollow blocks+
walls made of gypsum blocksrecommended ATLAS UNI-GRUNT PLUS

Substrate-type – difficult

ement floors and screeds with floor heating+
anhydride screeds with floor heatingrecommended ATLAS UNI-GRUNT PLUS
asphalt screedsrecommended ATLAS GRUNTO-PLAST
magnesium screeds+
monolithic concreterecommended ATLAS UNI-GRUNT PLUS
ferroconcreterecommended ATLAS UNI-GRUNT PLUS
existing ceramic and stone claddingrecommended ATLAS GRUNTO-PLAST
terrazzorecommended ATLAS GRUNTO-PLAST
OSB boardsrecommended ATLAS GRUNTO-PLAST
stable linoleum, PVCrecommended ATLAS GRUNTO-PLAST
concrete varnishesrecommended ATLAS GRUNTO-PLAST
painting coats made of indoor acrylic and latex paintsrecommended ATLAS UNI-GRUNT PLUS
oil-colour painting coatrecommended ATLAS GRUNTO-PLAST

Type of finishing layer

cladding fixed with cement or gypsum adhesive+
mineral waterproofing+
cement floors and screeds, anhydride screeds+
cement, cement-lime, gypsum plasters+
gypsum, cement top finishes+
painting coats made of indoor acrylic and latex paints+

Range of application

horizontal surfaces+
vertical surfaces+

ATLAS UNI-GRUNT technical data

Density of emulsionapprox. 1.0 g/cm3
ubstrate and ambient temperature during application
from +5°C up to +25°C
Further work after priming- after 15 minutes – plasters, silicate hollow blocks, aerated concrete blocks
- after 2 hours – self-levelling floors


Substrate preparation

The substrate should be dry, free from dust, dirt, oils, grease and wax. Remove any loose, poorly bonded layers before the emulsion application.

Emulsion preparation

ATLAS UNI-GRUNT is manufactured as a ready-to-use emulsion. It must not be mixed with other materials or thickened. It is admissible to dilute it in weight ratio:

– 1:1 for the first priming, in case of double priming of very weak substrates, – 1:3 in case of priming substrates under ATLAS paints for indoor use.


It is advisable to apply the emulsion upon the substrate in undiluted form, once, using a roller or a brush, with thin and uniform coat. For the first priming of very absorptive and weak substrates, emulsion diluted with water in 1:1 ratio can be used. When the first coat dries, repeat the priming with undiluted emulsion.

Surface use

Painting, wallpapering, tiling, etc., can commence when emulsion dries, i.e. after approx. 2 hours since application. The primer should form matt surface after drying.


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