ATLAS ROKER U adhesive mortar for mineral wool and for base coat

Most important features:

very high bonding to difficult substrates

perfect workability

water vapour permeability

reinforced with fibres

improved resistance to cracking and scores

Product description:

ATLAS ROKER U is manufactured as a dry mix of high quality cement binder, aggregates, polymer dispersions and modifiers.

Very high bonding – owing to the content of polymer dispersions, adhesive shows high adhesion to mineral and ceramic substrates and to mineral wool boards. This performance is additionally improved by mortar diversified tight aggregate mix. The mortar adheres well even to difficult substrates, e.g. surfaces coated with well bonded paints.

Great flexibility – greater content of dispersions increases mortar flexibility and allows for perfect compensation of stress resulting from thermal and operational pressure put on the system layers.

Improved resistance to cracking and scores – owing to structural fiber reinforcement the mortar offers improved resistance to:

• microcracking at initial phase of binding,

• cracking during system operational use.

Great water vapour permeability – does not limit water vapour permeability through partition which is particularly significant when system based on mineral wool insulation is in use.

Main parameters:

Mixing ratio (water/dry mix): 5.50 ÷ 6.00 l/25 kg

Pot life: approx. 2 hours

Open time: min. 30 minutes