BEYEM ROCK is a basecoat render and adhesive for fixing insulating panels (mineral wool and glass fibre) in cavity walls. Formulated with high strength grey cement, selected aggregates, special additives to improve plasticity, adhesion, rainwater-proofing and an excellent workability.
Fixing MW and glass fibre panels for thermo-acoustic insulation systems in cavity walls. Mineral render for facades, brickwork and concrete block enclosures. Suitable as a grey coat finishing render or as a base coat for receiving mineral plasters, paints and ready to use dispersion/silicate/silicon resin based renders. As an undercoat in others multi-coat render systems. Interior plastering. Suitable for walls and ceilings both in interior and exterior situations, manually or mechanically. Projectable.
BEYEM ROCK is suitable for:
- Concrete blocks.
- Concrete (treated with BEYEM UNIÓN MORTEROS adhesion promoter primer).
- Cement based substrates.
Substrates must be clean, compact and free of substances that reduce adhesion such as dust, oil, grease and with no loose material. Substrates must submit an adequate porosity and surface roughness. Uneven areas must be corrected. Dampen substrates with water to cool down if they should be too warm, in case of wind or over absorbent substrates and wait until the thin layer of water disappears. It is a good practice curing with a fine spray of clean water 24 h after application.
Do not apply on cellular concrete, gypsum based plasters, paint, plastic, wood or materials with low mechanical properties.
Mix manually of mechanically BEYEM ROCK with 4,0-5,0 l per bag of clean water until a homogeneous, creamy and lump-free paste is obtained. Let the mix stand for 5 minutes before application. To apply with render spray machine, it´s necessary to set the relation water/mortar and pump pressure depending on section and length of hose and climatology conditions. It´s important to maintain the variables affecting the properties of the applied mortar (distance to the wall, angle of application and water proportion).
As adhesive: Spread the mixed product with a trowel (in case of manually or mechanically application) leaving aprox. 5mm of average thickness. Smooth with a ruler the applied material. Set the insulating panel over fresh mortar and press to ensure adhesion.
As basecoat render: Spread the mixed product with a trowel (in case of manually or mechanically application) leaving 10 mm of average thickness. Press to ensure adhesion and expel the air contained in the pores. Smooth with a ruler the applied material to regulate thickness. When BEYEM ROCK is green (set but not fully hardened) it should be finished using a stainless steel trowel, wooden, plastic or sponge float according to the desired effect.
BEYEM ROCK is packed 25 kg plastic lined paper bags.
Storage: when stored unopened in a cool dry place, shelf life is 12 months from date of manufacture.
Tools can be cleaned easily with water before the product hardens. Hardened product can be remove only mechanically.
Bonding of MW and glass fibre insulating panels must be carried out with rainwater-proof basecoat render and adhesive compliant with EN 998-1- Class GP CSIV Wc 2, such as Beyem Rock manufactured by Rodacal Beyem Company. Coverage will be ≈ 1,5 kg/m2 per mm of thickness. The substrate must be clean, sound, compact and dimensionally stable. Expansion joints must be respected.
For further and complete information about the safe use of our product please refer to our latest version of the Safety Data Sheet, which is available upon request.
Disposal of the product and packaging must be in accordance with current legislation. This is responsibility of the final product user.
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