ATLAS ULTRAGRUNT Bulk Buy – Quick Drying Primer for critical substrates

ATLAS ULTRAGRUNT Quick Drying Primer for critical substrates – extended information

Consumption: The average consumption is 0.3 kg of mass for 1 m².

Characterised by excellent bonding to non–absorbable and perfectly smooth substrates – bonding to concrete min. 1.0 MPa.

Addition of selected quartz aggregate improves bonding of subsequent coats – owing to greater effective surface between substrate and applied mate- rial. Forms coarse surface beneath the subsequent coat.
Designed for use in higher temperature – recommended for indoor and out- door use at temperature from +5°C up to +35°C.

Quick drying – application of the next coat is possible just after 4 hours.

ATLAS ULTRAGRUNT – substrate type – difficult

monolithic concrete (incl. hardened concrete floors)	+
ferroconcrete	+
wet cast slabs	+
cement floors and screeds with heating system	+
anhydrite screeds with heating system	+
terrazzo	+
existing ceramic and stone cladding	+
non-grinded OSB boards	+
wood-based construction boards	+
stable timber floors	+
plasterboards	+
gypsum-fibre boards	+
stable plastic flooring	+
steel substrates	+
plastic substrates	+
dado made of solvent based paints	+

Use

Type of top coat – check recommendation on priming listed by the manufacturer of a top coat material
ceramic and stone cladding fixed with cement adhesives	+
gypsum cladding and molding fixed with gypsum adhesives	+
cement floors and screeds, anhydrite screeds	+
cement, cement – lime, gypsum plasters	+
cement, gypsum finishing coats	+

Range Of Use

indoors	+
outdoors	+
on horizontal surfaces	+
on vertical surfaces	+

ATLAS ULTRAGRUNT – technical data

Density	approx. 1.5 g/cm3
Substrate and ambient temperature during application	from +5°C up to +35°C
Further application after priming	after approx. 4 hours
Bonding to terrazzo	> 1.0 MPa
Bonding to ceramic tiles	> 1.0 MPa
Bonding to concrete	> 1.0 MPa
Bonding to OSB boards	> 0.8 MPa (breaking within OSB board)

Time shown in the table is recommended for application at temperature 20°C and humidity 50-60% (approx.).

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. Terrazzo should be obligatorily degreased and free off pastes and impregnating sealers (if it was coated with them).

Mass preparation

Product is manufactured as a ready-to-use mass. It must not be mixed with other materials, thinned or thickened. Just before use, the mass should be mixed in order to unify its consistency.
Mass application

Apply uniform coat of mass upon prepared substrate with a roller or a paintbrush.

Application of finishing coats

Cladding fixing or floating can commence approx. 4 hours since ATLAS ULTRAGRUNT application. Application of self – leveling screeds (e.g. ATLAS SMS 15 or SMS 30) upon terrazzo can commence approx. 24 hours since ATLAS ULTRAGRUNT application.