STIROFIX BIJELI
Universal adhesive for styrofoam
Characteristics
White. Universal.
One-component powdery compound based on mineral fillers, cement, polymeric binders and necessary additives. It is used as glue for styrofoam on substrates made of: clay, concrete, cement and cement-lime mortars, and serves, also, for the installation of reinforcement mesh on styrofoam in thermal façade systems.
Substrate Preparation
Substrate has to be hard, dry, free of dust, grease and other impurities. Major cracks on the wall have to be filled using appropriate mortar, rather than applying a thicker layer of binder. Smooth concrete surfaces should be impregnated with PODLOGA KVARC product.
Application
Use a 25 kg bag of STIROFIX WHITE per cca. 5.5 l of water and mix using a slow-speed mixer until a homogeneous compound is obtained. Leave such material to rest for about 5 minutes and then mix it again. The compound’s working time is 2-3 hours. Gluing: Before the start of gluing, the initial aluminium lath needs to be laid and an appropriate quantity of adhesive should be applied thereon to ensure sealing from the bottom, after which the first layer of thermal insulation boards is laid. Adhesive should be applied along the edges in stripes of the width of cca. 5 cm and in 3 central stripes or 4-6 spots.
The surface of the applied adhesive must not be under 40%. Boards prepared this way are attached to the wall. Thermal insulation boards are glued one next to another sufficiently close to each other to prevent the adhesive from entering the contact surfaces between the boards. The boards in adjacent rows are glued, according to brick ties (with a minimum space of 30 cm compared to the new row). The evenness of thermal insulation boards is verified using a lath of appropriate length.
Before the placement of anchors, the styrofoam should be drilled using appropriate tools at all points where the anchors will be placed, after which the anchors are placed (6-8 pcs/m2, on verticals 8-12 pcs/m2) at styrofoam ties and centre, and then EPS plugs are pressed therein. A completely even surface is, thus, obtained before the installation of reinforcing mesh. This procedure prevents appearance of bumps on anchor points and prevents appearing of stains due to uneven absorption and water discharge. The joints between the boards that are wider than 2 mm should be filled with thermal insulation material that is applied by cutting belts of appropriate thickness and their pressing into such spots or by using low-expansion PUR foam.
Installation of reinforcing mesh. Before installing reinforcement mesh, the building corners and the edges surrounding openings should be additionally strengthened using appropriate angle profiles. Adhesive is applied on the installed thermal insulation board using a npotoothed trowel with tooth of min. 6 mm, across the entire surface. Glass mesh is placed on the applied adhesive and pressed gently to remain in the upper adhesive zone. The glass mesh is pressed moving from up- down and has to be visible, rather then completely covered with the adhesive. After the first layer has dried, (cca. 1.5 day for 1 mm of thickness at the temperature of +20°C and rel. air humidity of 65%), apply the second layer of adhesive using the flat trowel until the glass mesh is completely covered with the adhesive. The thickness of the base coat in case of styrofoam should be 2-3 mm, and that of the second layer 1-1.5 mm. Mesh overlapping of at least 10 cm must be ensured. Optimal air and wall temperatures during work and drying should be from +5°C up to +25°C. Avoid working in direct sun, wind and rain. Use protective sheets during application. Wash tools with water immediately after use.
For detailed instructions, see Technical Data Sheet for the product.
Consumption
Gluing = 4.5 - 5.5 kg/m2
Installation of reinforcing mesh: = 4- 5 kg/m2
Packaging
bags of 25 kg, 48 pieces, 1 pallet = 1200 kg
