Bekatherm

Highly flexible
Fiber reinforced
Good vapor permeability
Excellent workability

BK-StirolFix Special

Highly fl exible adhesive for bonding EPS, EPS G, XPS and MW boards and mesh reinforcement.

PRIMENA
KARAKTERISTIKE
PAKOVANJE

Mineral, highly flexible polymer-cement adhesive for bonding expanded (EPS) and extruded (XPS) polystyrene boards, for bonding graphite styrofoam and mineral wool (MW) boards to various mineral substrates, as well as for embedding reinforcement mesh and leveling the entire facade surface. BK-StirolFix Special is used as an adhesive for bonding and as a base coat, i.e., adhesive for reinforcement within the Bekatherm Prestige thermal insulation system.

Preparation and application :
The substrate to which the adhesive is applied must be solid, clean, durable, and free from efflorescence and oil residues. Smooth, low-absorbent concrete with residual dirt from the formwork should be coated with BK-Beton Kontakt one day before bonding the boards. It is not necessary to apply a primer on new brick walls. In the case of bonding the panels to walls made of aerated concrete, coating with BK-Nivelator is recommended according to the instruction manual. The preparation is performed by adding the powder to about 26-28% water (6.5-7 liters of water for 25 kg of product) until complete homogenization. Let the mixture rest for about 10 minutes, then stir again to achieve the appropriate adhesive density. The prepared adhesive is applied to thermal insulation boards (along the entire perimeter of the board, with the addition of three application points in the middle), and the boards are then bonded to the substrate by pressing. After a minimum of 48 hours, anchoring with fasteners with a metal core is mandatory, especially when using the system with MW boards. After anchoring, a very thin layer of adhesive should be applied to the entire surface of the board, with a drying time of about 4 hours. When embedding the reinforcement mesh, the adhesive is applied over the entire surface of the board using a serrated trowel (tooth depth 8-10 mm). The reinforcement mesh (with a minimum 10 cm overlap between strips) is embedded into the freshly applied adhesive. After drying, the entire surface is leveled with a new layer of adhesive, and the total thickness of the adhesive finish should be 5-6 mm. The adhesive should be protected from premature drying and freezing. When bonding MW boards, the entire surface of the board should be coated with a thin layer of adhesive, or at least the parts to which the adhesive is applied. The adhesive is then applied over the entire perimeter of the MW board, with the addition of three points in the middle. For further work, follow the same rules mentioned in the section on EPS board bonding. See the product datasheet for more detailed instructions.
Technical data :
Substrate and air temperatures from +5°C to +30°C. Possible to embed reinforcement mesh: after min. 48 hours. Possible to apply finishing coats: after min. 7 days.
Consumption :
About 5.5-6 kg for bonding and about 5-7 kg for leveling.
Expiration date and storage :
12 months in original packaging in dry room on pallets.
25kg 

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