REDBAG 221 – adhesive mixture intended for gluing facade thermal insulation boards made of mineral wool and expanded polystyrene.

To apply a hydroprotective layer reinforced with fiberglass mesh to the outer surface of the insulation, it is necessary to use the REDBAG 222 mixture.

The base must be dry, not frozen, strong, capable of bearing loads, free from dust, dirt, oils, greases, old paint residues, wax and other substances that reduce adhesion, have uniform water absorption, and meet the requirements of DSTU-N B A.3.1-23:2013, DSTU-N B V.2.6-212:2016. Remove weak areas of the base.

The concrete base must not shrink after gluing, therefore, when finishing, it must be no younger than 3 months from the moment of laying the concrete, and the residual humidity of the concrete must be below 4%. Cast concrete bases have a smooth surface and low moisture absorption, so after cleaning before finishing, they must be treated with an adhesive primer for dense, smooth, low- or no-moisture-absorbing bases - REDBAG SUPERSTICK.

Bases made of cement screeds, cement, cement-lime and gypsum plasters must have a residual moisture content below 4%. Such bases have a high moisture absorption, so after cleaning before finishing, they must be treated with a deep penetration primer REDBAG ADHESIS.

Aerated concrete must be cleaned of dust and treated with a vapor-permeable primer for hygroscopic surfaces REDBAG INTERLACE before finishing.

Pour the REDBAG 221 dry mixture into a container with clean water (at the rate of 5-5.75 l of water per 25 kg or 200-230 ml per 1 kg of dry mixture), mix using a construction mixer until a homogeneous mass without lumps is formed. Leave for 3 minutes and mix again.

Do not add other materials to the prepared adhesive solution.

Attention! REDBAG mixtures are created on the basis of modern high-tech recipes using the latest additives from world manufacturers.

When preparing the mixture, use water only in the volume indicated on the packaging!

Work should be carried out at a base temperature of +5 °C to +30 °C. Unevennesses of more than 10 mm should be preliminarily leveled by plastering the surface (for example, with REDBAG 440 or REDBAG 444 plaster mixture). If the wall surface has unevennesses of up to 10 mm, the mortar mixture is applied to the facade thermal insulation board made of expanded polystyrene along the perimeter in a continuous continuous strip about 50 mm wide and additionally in the form of separate adhesive dots (at least five) in the middle of the board. The bonding area should be at least 40% of the board area. If the wall surface has unevennesses of up to 5 mm, the adhesive mixture is applied to the facade thermal insulation board made of expanded polystyrene in strips at a distance of 20 mm from the edges of the board along its entire perimeter, and then in the middle. The strips applied around the perimeter must have gaps so that air pockets do not form when gluing the board. If the wall surface has no deviations, then apply the adhesive solution in a continuous manner over the entire surface of the heat-insulating board using a notched trowel with a tooth size of 10 × 10 mm (for mineral wool boards - only a continuous method of application). Before applying the adhesive solution to the mineral wool board, it is imperative to rub it into the board fibers. Do not fill the seams of facade heat-insulating boards with adhesive solution. Fasten the boards with dowels after 24 hours.

from 4 to 6 kg/m² (based on 1.4 kg per 1 m² with a layer thickness of 1 mm).

*The mixture consumption depends on the unevenness of the base and the skills of the performer.