ATLAS UNI-GRUNT – Fast Drying Priming Emulsion (Primer)
Consumption:
The average consumption is 0.05 ÷ 0.2 kg of emulsion for 1 m2. In practice, the consumption depends on the substrate absorptiveness.
Properties
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.
ATLAS UNI-GRUNT Primer – Use
Substrate-type – standard
cement floors and screeds | + |
anhydride screeds | recommended ATLAS UNI-GRUNT PLUS |
cement and cement-lime plasters and top finishes | + |
gypsum plasters and top finishes | recommended 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 blocks | recommended ATLAS UNI-GRUNT PLUS |
Substrate-type – difficult
ement floors and screeds with floor heating | + |
anhydride screeds with floor heating | recommended ATLAS UNI-GRUNT PLUS |
asphalt screeds | recommended ATLAS GRUNTO-PLAST |
magnesium screeds | + |
monolithic concrete | recommended ATLAS UNI-GRUNT PLUS |
ferroconcrete | recommended ATLAS UNI-GRUNT PLUS |
existing ceramic and stone cladding | recommended ATLAS GRUNTO-PLAST |
terrazzo | recommended ATLAS GRUNTO-PLAST |
OSB boards | recommended ATLAS GRUNTO-PLAST |
plasterboards | + |
stable linoleum, PVC | recommended ATLAS GRUNTO-PLAST |
concrete varnishes | recommended ATLAS GRUNTO-PLAST |
painting coats made of indoor acrylic and latex paints | recommended ATLAS UNI-GRUNT PLUS |
oil-colour painting coat | recommended 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 | + |
wallpapers | + |
Range of application
indoors | + |
outdoors | + |
horizontal surfaces | + |
vertical surfaces | + |
ATLAS UNI-GRUNT technical data
Density of emulsion | approx. 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 |
ATLAS UNI-GRUNT Priming
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.
Priming
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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