Adhesive mortar for mineral wool ATLAS ROKER U 25kg
Country of manufacture Poland
Relative air humidity during application and curing < 80%
Density of the finished product ca 1.9 g/cm3
Diffusion resistance 0,14 ≤ Sd < 1,4 m
Reaction to fire b-s2, d0
ATLAS ROKER U adhesive mortar for mineral wool and for base coat
Most important features:
very high bonding to difficult substrates
water vapour permeability
reinforced with fibres
improved resistance to cracking and scores
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.
Mixing ratio (water/dry mix): 5.50 ÷ 6.00 l/25 kg
Pot life: approx. 2 hours
Open time: min. 30 minutes